11th week of 2016 patent applcation highlights part 64 |
Patent application number | Title | Published |
20160079887 | ELECTRIC TOOL - An electric tool includes: a motor configured to be driven by PWM controlling a semiconductor switching element; a trigger configured to adjust startup and rotation of the motor; a changeover switch configured to switch a rotation direction of the motor between a forward rotation and a reverse rotation; a power transmission mechanism configured to rotate a tip tool by the motor, and a controller configured to control rotation of the motor. When the reverse rotation is set by the changeover switch, the controller PWM controls the semiconductor switching element at a high duty ratio after the trigger is pulled to drive the motor, and thereafter drives the motor at a state where the high duty ratio is changed to a low duty ratio. | 2016-03-17 |
20160079888 | SYSTEM AND METHOD FOR CONTROLLING A MOTOR - An interleaved bridgeless power factor correction (PFC) converter-based motor drive system is provided. The system includes a first inductor coupled to a second inductor. The coupled first and second inductors are coupled to a first input configured to be coupled to a first line of an alternating current (AC) power supply. The system also includes a third inductor coupled to a fourth inductor. The coupled third and fourth inductors are coupled to a second input configured to be coupled to a second line of the AC power supply. The system further includes a digital active power factor correction (PFC) controller configured to cause current in at least one of the coupled first and second inductors and the coupled third and fourth inductors to be interleaved. | 2016-03-17 |
20160079889 | MOTOR DRIVER AND A METHOD OF OPERATING THEREOF - A driver circuit for driving an electrical motor coil is provided which comprises combined switched inductance boost voltage converter circuitry and switched inductance buck voltage converter circuitry. An input node of the driver circuit is provided to be coupled with the electrical motor coil, which provides the inductive element of both the boost and buck circuitry. Further the boost and buck circuitry share a storage capacitor, which provides the capacitive element of each circuitry, and a voltage developed across the storage capacitor by the boost circuitry forms an input of the switched inductance buck voltage converter circuitry. Bidirectional driving of the electrical motor coil is thus provided from a driver circuit which only need be supplied with a single unidirectional supply and the current drawn from that supply is significantly reduced because of the manner in which the boost and buck circuitry operate synergistically to recycle electrical power which is moved back and forth between the electrical motor coil and the storage capacitor. A corresponding driver board, electrical motor driver apparatus, method of operating a driver circuit and apparatus are also provided. | 2016-03-17 |
20160079890 | INVERTER APPARATUS - An inverter apparatus includes: an inverter including three high-voltage side switching elements and three low-voltage side switching elements respectively provided in three phases one by one, and driving a three-phase brushless motor; an opening and closing control unit performing controlling so as to cause an electrical angle of the motor to pass through an angle corresponding to a first combination, to rotate twice by 120° each time to one side in a rotary direction, and to rotate once by 120° to the other side in the rotary direction thereafter, by sequentially closing four combinations each of which is formed with one among the high-voltage side switching elements and one among the low-voltage side switching elements; and a detection unit detecting a conduction state of a circuit including the closed high-voltage side and low-voltage side switching elements, wherein all the high-voltage side and low-voltage side switching elements are closed at least once in the four combinations. | 2016-03-17 |
20160079891 | MONITORING DEVICE FOR AN ELECTRIC MACHINE, CONTROL DEVICE AND METHOD - The present invention discloses a monitoring device for an electric machine, comprising a first detection apparatus which is configured to detect electrical power supplied to the electric machine, comprising a second detection apparatus which is configured to detect theoretical mechanical power output by the electric machine on the basis of a commutation of the electric machine, and comprising a calculation apparatus which, on the basis of the detected electrical power and of the detected theoretical mechanical power, is configured to calculate an efficiency of the electric machine and to emit an error signal if the calculated efficiency is greater than 1. The present invention further discloses a control device for an electric machine and a method for monitoring an electric machine. | 2016-03-17 |
20160079892 | INVERTER CIRCUIT FOR AN ELECTRIC MACHINE - An inverter circuit electrically connects between a high-voltage bus and a multi-phase electric machine, including a plurality of switch pairs. Each switch pair includes a first switch electrically connected in series with a second switch at a node. Each node electrically connects to a phase of the multi-phase electric machine with the first switch electrically connected between a positive side of the high-voltage bus and the node and the second switch electrically connected between a negative side of the high-voltage bus and the node. The first switch is configured as a normally-OFF switch. The second switch is configured as a normally-ON switch. | 2016-03-17 |
20160079893 | ELECTRICAL MOTOR SYSTEM AND METHOD OF OPERATING THE ELECTRICAL MOTOR SYSTEM - An electrical motor system comprises a switched reluctance electrical motor comprising a rotor section and a stator section, the rotor section comprising a plurality of rotor teeth and the stator section comprising a plurality of stator teeth, the stator teeth wound with respective coils. Coil driver circuitry is coupled to the coils of the stator teeth and controls an independent phase of electrical power to each coil of the plurality of stator teeth. The coils of the stator teeth each have an inductance which absorbs electrical energy provided to that coil by the coil driver circuitry and subsequently releases at least a portion of the electrical energy back to the coil driver circuitry when that coil is not being actively driven by the coil driver circuitry. The coil driver circuitry comprises an electrical energy store configured to store the portion of the electrical energy released back from the inductance of each coil and the electrical energy provided to each coil of the stator teeth by the coil driver circuitry is augmented by the electrical energy stored in the electrical energy store. | 2016-03-17 |
20160079894 | APPARATUS EMPLOYING COIL INDUCTANCE DETERMINATION AND METHOD FOR OPERATING THE APPARATUS - The invention relates to an apparatus having an electric motor with a stator, an armature, especially a rotor, and at least one coil, wherein the apparatus further comprises detection means configured to determine the inductance L of the coil by measuring at least one electrical quantity related to the coil during operation of the motor. The invention further relates to a method for operating such an apparatus, wherein the detection means of the apparatus determine the inductance L of the coil and/or the position of the armature as a function of the inductance L of the coil by measuring at least one electrical quantity related to the coil during operation of the motor. | 2016-03-17 |
20160079895 | ELECTRIC POWER TOOL - An electric power tool includes a drive source, a rechargeable battery that supplies power to the drive source, a voltage meter that measures voltage of the rechargeable battery, a temperature meter that measures temperature of the rechargeable battery, and a drive control unit that regulates the power supplied to the drive source from the rechargeable battery to drive the drive source. If the battery temperature measured by the temperature meter is lower than or equal to a predetermined temperature when the battery voltage measured by the voltage meter is lower than or equal to a predetermined voltage, the drive control unit drives the drive source differently from normal driving that is performed if the battery temperature is higher than the predetermined temperature when the battery voltage is higher than the predetermined voltage. | 2016-03-17 |
20160079896 | CONTROL DEVICE OF STEPPING MOTOR, ELECTRONIC APPARATUS, RECORDING APPARATUS, ROBOT, CONTROL METHOD OF STEPPING MOTOR, AND CONTROL PROGRAM OF STEPPING MOTOR - A control device includes a position generating section that generates a position signal including position information of a rotor, an electrical angle detection section that outputs a detection electrical angle signal including electrical angle information that is obtained by multiplying a coefficient by the position signal, and a driving section that outputs an excitation current to a coil based on an amplitude signal including amplitude information of the excitation current and the detection electrical angle signal. | 2016-03-17 |
20160079897 | MOTOR DRIVE CONTROL DEVICE, MOTOR DRIVE CONTROL METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM - A motor drive control device includes: a deceleration start position calculating unit that calculates a deceleration start position indicating an address at which a pulse period is stored, the pulse period being equal to or larger than a pulse period at the time of forced stopping and closest to the pulse period at the time of forced stopping among the pulse periods included in a driving information; a stop pulse number calculating unit that calculates the number of pulses required for stopping the motor at an exciting position; and a driving control unit that outputs a total number of pulses of a counted number of pulses and the number of pulses from the deceleration start position until the motor is stopped in forcibly stopping the motor, and outputs a shortage of the number of pulses required for stopping the motor calculated by the stop pulse number calculating unit. | 2016-03-17 |
20160079898 | Doubly-Fed, Variable-Speed, Dual-Voltage AC Generation and Distribution Systems - A generation and distribution system comprises an adjustable-speed prime mover and a doubly-fed asynchronous alternating-current (AC) generator driven by the prime mover and having a first poly-phase circuit, e.g., a stator, and a second poly-phase circuit, e.g., a rotor. The system further includes a first AC bus electrically coupled to the first poly-phase circuit and configured to deliver AC power at a first AC voltage to multiple loads, and a second AC bus configured to deliver AC power at a second AC voltage to another group of loads, the second AC voltage being lower than the first. Finally, the system includes a poly-phase transformer having first windings electrically coupled to the first poly-phase circuit and the first AC bus and having second windings electrically coupled to the second AC bus, and a poly-phase AC-to-AC electronic converter circuit electrically coupled between the second poly-phase circuit and the second AC bus. | 2016-03-17 |
20160079899 | VARIABLE SPEED GENERATOR - A variable speed generator for producing AC electrical power includes an alternator powerable by rotational action to generate a first AC current, and a first rectifier which rectifies the first AC current from the alternator. The generator further includes a main exciter having a first field winding which receives the rectified first AC current, and having a first armature which produces in response a second AC current. The generator further includes a second rectifier which rectifies the second AC current from the first armature. The generator further includes a main generator having a second field winding which receives the rectified second AC current, and having a second armature which produces in response an output AC current. The second field winding is configured to provide a plurality of selectively activatable pole configurations which differ in the number of their poles, such that the frequency of the output AC current can be varied by switching between the pole configurations. The variable speed generator further includes a control arrangement for activating the selected pole configuration. | 2016-03-17 |
20160079900 | MOTOR CONTROL DEVICE - A motor control device for controlling a multiphase brushless motor in a vector control manner includes: a current command value generation unit that generates q-axis and d-axis current command values; a controller that calculates q-axis and d-axis voltage command values; a saturation guard unit that corrects the q-axis or d-axis voltage command value to set a magnitude of a voltage vector of the q-axis or d-axis voltage command value to be equal to or smaller than a predetermined voltage guard value; and a current command value limiting unit that limits the q-axis or d-axis current command value using a current limit gain and a current guard value, which are calculated based on a voltage saturation amount as the magnitude of the voltage vector of the q-axis or d-axis voltage command value corrected by the saturation guard unit. | 2016-03-17 |
20160079901 | Four Quadrant Voltage Limiter for Rotor Flux Oriented Machine Control - Methods, systems and computer readable storage devices for a four quadrant voltage limiter that limits a commanded phase voltage to within a volt second capability of an inverter by maintaining a rotor flux and folding back a torque under both motoring and regeneration torque commands. In one embodiment: (a) in a motoring operation, an upper limit for a q-axis voltage is enforced; and (b) in a regeneration operation a lower limit for the q-axis voltage is enforced. | 2016-03-17 |
20160079902 | INVERTER DRIVES HAVING A CONTROLLED POWER OUTPUT - An electromechanical system includes an inverter drive, a component arranged during operation to generate a variable force having one or more periodic frequency components, and processing circuitry arranged to determine the power output of the inverter drive, measure a difference between the power output and a reference power output, and control an output frequency of the inverter drive as a function of the measured difference, so as to stabilise the power output during operation of the component. Other example electromechanical systems, inverter drives and methods are also disclosed. | 2016-03-17 |
20160079903 | RELUCTANCE MOTOR SYSTEM, DRIVING CIRCUIT, AND RELUCTANCE MOTOR - A reluctance motor system includes a reluctance motor having a stator and a rotor, and a driving circuit. The stator includes phase winding sets each of which includes two windings that are connected in series at a corresponding node. The driving circuit includes switching members each of which is coupled electrically to a respective phase winding set, and each of which includes a first switch, a second switch, a first flyback diode, and a second flyback diode. The driving circuit further includes damping capacitor sets each of which includes a first capacitor coupled between the node and a positive terminal of a DC power source, and a second capacitor coupled between the node and a negative terminal of the DC power source. | 2016-03-17 |
20160079904 | DRIVE UNIT EMPLOYING GALLIUM NITRIDE SWITCHES - A switching assembly for use in a drive unit for driving a motor. The switching assembly includes a gallium nitride switch having a gate terminal, drain terminal and source terminal; a gate driver generating a drive signal; a gate drive circuit including a turn on resistor in series with the gate driver and the gate terminal and a clamping circuit connected across the gate terminal and the source terminal, a turn on drive signal from the gate driver being applied to the gate terminal through the turn on resistor; and a snubber circuit connected across the drain terminal and source terminal. | 2016-03-17 |
20160079905 | ENERGY SAVING METHOD FOR USE WITH ACTIVE PWM RECTIFIERS IN REGENERATIVE DRIVES - As described herein, a drive circuit for a three phase AC motor comprises an AC/AC converter. The converter has an input for receiving multiphase AC power from an AC source and converting the AC power to variable voltage and variable frequency from the AC source for driving the AC motor. A filter circuit is connected to the AC/AC converter and comprises at least one inductor per phase and at least one capacitor per phase. The capacitors are connected in a broken wye configuration with one side connected to one of the inductors and an opposite side connected via a three phase diode bridge rectifier to a switch. The switch is controlled by a converter control to selectively open or short a neutral point of the broken wye capacitor configuration. | 2016-03-17 |
20160079906 | METHOD AND DEVICE FOR OPERATING A BRUSHLESS DC MOTOR - A method for operating a three-phase brushless DC motor with a pulse-width modulation controlled electronic commutation in the event of a malfunction. A maximum number (n) of commutation steps, a direction of motor rotation and at least two possible operating end states are specified, and one of the operating end states is chosen. Following indication of a malfunction, the rotor of the brushless DC motor is rotated at the specified maximum number (n) of commutation steps in the specified direction of motor rotation and the brushless DC motor is then set to the operating end state selected. | 2016-03-17 |
20160079907 | FIELD-ASSEMBLED AC PHOTOVOLTAIC MODULE - This disclosure generally relates to methods of assembling an alternating current (AC) photovoltaic (PV) module, including a direct current (DC) PV module and a micro-inverter, at an assembly location. One example method includes assembling the AC PV module by mechanically attaching and electrically grounding the micro-inverter to the DC PV module, testing a DC electrical continuity between the DC PV module and the micro-inverter, and labeling the AC PV module as compliant with a code or standard. | 2016-03-17 |
20160079908 | Photovoltaic Array Using Integrated Boards - A photovoltaic array using photovoltaic module integrated boards comprises at least two cross beams and at least two photovoltaic module integrated boards; the angle between the longitudinal axes of the at least two beams is less than 15 degrees; the angle between the longitudinal axis of at least one beams and the longitudinal axis of the at least two photovoltaic module integrated boards is not less than 30 degrees and not more than 150 degrees; and the total area of all the photovoltaic module integrated boards supported by at least one group of the beams is more than 12 square meters. The present invention is designed to share beams, columns and foundations, thus saving materials and installation time and greatly reducing cost. | 2016-03-17 |
20160079909 | PHOTOVOLTAIC PANEL MOUNTING SYSTEM - A photovoltaic panel mounting system having a pair of spaced mounting rails, one or more fastener retaining devices and a plurality of quick access fasteners. Each of the pair of spaced mounting rails has a first end, a second end and a plurality of mounting holes. The one or more fastener retaining devices are aligned with the plurality of mounting holes in each of the rails and each of the quick access fasteners is removably secured to one of the rails through one of the plurality of mounting holes. The quick access fasteners are securable and removable to one of the one or more fastener retaining devices with less than one revolution of the quick access fastener. The plurality of the quick access fasteners can be quarter turn fasteners. | 2016-03-17 |
20160079910 | Corrugated Roof Sheet and Photovoltaic Assembly Comprising the Same - A corrugated roof sheet has a bottom, a first-side roof sheet edge portion, a second-side roof sheet edge portion, a retaining cap and a protruding portion. The first-side roof sheet edge portion has a height H | 2016-03-17 |
20160079911 | PHOTOVOLTAIC ARRAY WITH ARRAY-ROOF INTEGRATION MEMBER - One embodiment relates to a photovoltaic (PV) apparatus. The PV apparatus includes a plurality of photovoltaic modules arranged in an array and attached to a support structure which is attached to a roof. Each of the photovoltaic modules comprises a plurality of photovoltaic cells. A first array-roof integration member is attached to a first side of the array. The array-roof integration member covers a gap between the first side of the array and the roof. Another embodiment relates to a method of installing a photovoltaic apparatus upon a sloped roof. Another embodiment relates to a kit for mounting a photovoltaic apparatus on a roof. Other embodiments, aspects and features are also disclosed herein. | 2016-03-17 |
20160079912 | Support Member For Mounting Photovoltaic Modules - A support member for mounting photovoltaic modules on a support surface and a mounting system including the same are disclosed herein. The support member may comprise a body portion that includes a ballast receiving portion for accommodating one or more ballasts, the body portion further including a first support portion with a first surface and a second support portion with a second surface, the first support portion being spaced apart from the second support portion by the ballast receiving portion. The support member is configured to bridge a plurality of rows of photovoltaic modules, the first surface of the support member configured to support one or more photovoltaic modules in a first row of the plurality of rows of photovoltaic modules, and the second surface of the support member configured to support one or more photovoltaic modules in a second row of the plurality of rows of photovoltaic modules. | 2016-03-17 |
20160079913 | Corrugated Roof Sheet and Photovoltaic Assembly Comprising the Same - A corrugated roof sheet has a bottom, a first-side roof sheet edge portion, a second-side roof sheet edge portion, a retaining cap and a protruding portion. The first-side roof sheet edge portion has a height H | 2016-03-17 |
20160079914 | INTEGRATED TRACKER CONTROLLER - A photovoltaic (PV) system is disclosed. The PV system can include a first and a second tracker that includes a first and a second plurality of PV collection devices. The PV system can include a first motor configured to adjust an angle of the first tracker. The PV system can include an inverter coupled to an output of the first plurality of PV collection devices. The inverter can include a first local controller comprising control circuitry configured to control the first motor. In an example, the inverter can be a string inverter. In one example, the inverter can a block inverter coupled to an output of the first and second plurality of PV collection devices. The PV system can also include a power collection unit, where the power collection unit can be coupled to the first plurality of PV collection devices and include the first local controller. The PV system can also include a central controller configured to provide a first indication to the first local controller, where the first indication is usable by the control circuitry of the first local controller to control the first motor. | 2016-03-17 |
20160079915 | HYBRID SUPPLEMENTAL SOLAR ENERGY COLLECTION AND DISSIPATION SYSTEM WITH ONE OR MORE HEAT PUMPS - A hybrid supplemental solar energy collection and dissipation system with one or more heat pumps is featured. The system includes one or more commercially available photovoltaic panels configured to convert incident radiation to electricity. One or more supplemental solar energy collectors having a flow of fluid therein are selectively coupled to the one or more photovoltaic panels. The one or more supplemental solar energy collectors are configured to collect thermal energy from the one or more photovoltaic panels, radiate thermal energy to space, collect thermal energy from the environment and/or dissipate thermal energy to the environment to heat or cool one or more loads. One or more heat pumps are coupled to the one or more supplemental solar energy collectors and the one or more loads and are configured to amplify heating and/or cooling of the one or more loads. | 2016-03-17 |
20160079916 | Testing of a Photovoltaic Panel - A method for testing a photovoltaic panel connected to an electronic module. The electronic module includes an input attached to the photovoltaic panel and a power output. The method activates a bypass to the electronic module. The bypass provides a low impedance path between the input and the output of the electronic module. A current is injected into the electronic module thereby compensating for the presence of the electronic module during the testing. The current may be previously determined by measuring a circuit parameter of the electronic module. The circuit parameter may be impedance, inductance, resistance or capacitance. | 2016-03-17 |
20160079917 | METHOD AND APPARATUS OF A SELF-BIASED RC OSCILLATOR AND RAMP GENERATOR - A self-biased RC (resistor-capacitor) oscillator and ramp generator circuit includes a combined current and voltage reference circuit for providing a reference current, a first reference voltage, and a second reference voltage. The combined current and voltage reference circuit includes a circuit branch of an NMOS transistor in a diode connection, a PMOS transistor in a diode connection, and a resistor coupled in series. The circuit also has a signal generating circuit that includes a capacitor. The signal generating circuit is configured to charge and discharge the capacitor between the first reference voltage and the second reference voltage. The self-biased RC oscillator and ramp generator circuit is configured to provide a ramp or saw tooth signal at a node of the capacitor and to provide an oscillator output signal at an output of the signal generating circuit. | 2016-03-17 |
20160079918 | SYSTEM AND METHOD USING TEMPERATURE TRACKING FOR A CONTROLLED OSCILLATOR - A system using temperature tracking for a controlled oscillator (CO) is provided. The system includes at least one coarse tuning capacitor circuit including a plurality of selectable coarse tuning capacitors operable in at least three modes of operation, thereby allowing switching between each coarse capacitor of the plurality of selectable coarse capacitors when a selected coarse tuning capacitor has reached one of its high tuning range and low tuning range. | 2016-03-17 |
20160079919 | FINE TUNING CONTROL FOR A DIGITALLY CONTROLLED OSCILLATOR - Methods, apparatuses, and systems for providing a variable capacitance using an array of capacitor cells are discussed. In the fine tuning bank of an inductor/capacitor (LC)-tank of a digitally controlled oscillator (DCO), control is implemented by selecting a boundary cell from the array of capacitor cells and having every cell before the boundary cell in a circuit path be grounded and having the boundary cell and every cell after the boundary cell in the circuit path be connected to a voltage source. The circuit path may be the one formed by using thermometer coding in the fine tuning bank. | 2016-03-17 |
20160079920 | Spin Torque Oscillator Having Multiple Fixed Ferromagnetic Layers or Multiple Free Ferromagnetic Layers - A spin torque oscillator and a method of making same. The spin torque oscillator is configured to generate microwave electrical oscillations without the use of a magnetic field external thereto, the spin torque oscillator having one of a plurality of input nanopillars and a nanopillar having a plurality of free FM layers. | 2016-03-17 |
20160079921 | EMBEDDING DATA ON A POWER SIGNAL - Disclosed are various embodiments for embedding data on a guided surface wave. A guided surface waveguide probe emits power as a guided surface wave received by a guided surface wave receive structure circuit. An aggregate electric load of the receiver circuit is modulated with reference to a data signal. A current at the guided surface waveguide probe is monitored. A data signal is recaptured at the guided surface waveguide probe. | 2016-03-17 |
20160079922 | MIXER CIRCUIT - A mixer circuit includes a single-ended to differential converter, first and second transistors, first to fourth inductive transmission lines, and a mixer. The first and second transistors receive a differential input voltage signal pair from the single-ended to differential converter and generate a differential input current signal pair. The mixer mixes the differential input current signal pair with a differential oscillatory voltage signal pair. The first and second inductive transmission lines are configured such that an equivalent input impedance seen into the first and second transistors matches an equivalent output impedance seen into the first single-ended to differential converter. | 2016-03-17 |
20160079923 | Power Amplifier - A power amplifier includes an input circuit configured to receive an input signal. At least two transistors connected in series. A first transistor of the at least two transistors is located at a first end of the at least two transistors. A second transistor of the at least two transistors is located at a second end of the at least two transistors. The first transistor is coupled to a low voltage power supply node. The first gate of the first transistor is coupled to a first bias voltage. The input signal is coupled to a first gate of the first transistor. At least one capacitor is coupled between a second gate of the second transistor and the low voltage power supply node. An output circuit coupled to a second gate of the second transistor. | 2016-03-17 |
20160079924 | BIAS CIRCUIT, OPERATIONAL AMPLIFIER, AND DELTA SIGMA TYPE AD CONVERTER - According to one embodiment, there are provided a bias voltage generation circuit that generates a bias voltage in an operational amplifier according to a bias current generated inside, and an adaptive timing control circuit that temporarily increases the bias current at a timing at which a first control signal configured to control an input signal of the operational amplifier changes in level. | 2016-03-17 |
20160079925 | PROGRAMMABLE FILTER IN AN AMPLIFIER - The disclosure provides an amplifier. The amplifier includes a first transistor that receives a first input and generates a first load current. A first output node is coupled to a power supply through a first load resistor. The first load resistor receives the first load current. A first capacitor network is coupled to the first output node and draws a first capacitive current from the first output node. A first current buffer is coupled between the first output node and the first transistor. A current through the first current buffer is a summation of the first load current and the first capacitive current. | 2016-03-17 |
20160079926 | AMPLIFYING CIRCUIT - An amplifying circuit includes a first differential amplifier (first differential pair) and a second differential amplifier (second differential pair) having an input capacitance smaller than the first differential amplifier. The amplifying circuit switches between the first differential amplifier (first differential pair) and the second differential amplifier (second differential pair) in response to an amplification mode setting signal to perform amplification processing of an input signal. | 2016-03-17 |
20160079927 | POWER AMPLIFIER - A power amplifier includes an amplification transistor which performs power amplification, a bias circuit which outputs a bias voltage to a base of the amplification transistor, a control terminal to which a control voltage is applied for controlling switching between an operating state and a stopping state of the bias circuit, and a bias voltage adjustment circuit connected to the control terminal. The bias voltage adjustment circuit includes a variable capacitance element which is connected to the control terminal and whose capacitance value decreases as the control voltage increases, a discharge circuit which discharges electric charge accumulated in the variable capacitance element to the control terminal, and a control circuit which is connected to the bias circuit and controls the bias voltage. The bias voltage adjustment circuit outputs, to the bias circuit, a bias voltage adjustment signal which increases the bias voltage for a predetermined period after the control voltage is applied. | 2016-03-17 |
20160079928 | POWER AMPLIFIER AND TRANSMISSION DEVICE - A power amplifier includes an output terminal, capacitive element groups including capacitive elements, and amplifier groups including amplifiers. Capacitive elements of the capacitive element groups are disposed on a first circle whose center is located on the output terminal. Amplifiers of the amplifier groups corresponding to the capacitive elements of the capacitive element groups are disposed on a second circle, which is concentric with and larger than the first circle. Each of the capacitive elements of the capacitive element groups is connected to both the output terminal and the corresponding amplifier of the amplifiers of the amplifier groups. | 2016-03-17 |
20160079929 | Method and Device for Controlling Power Amplification - A method and network equipment for controlling power amplification are disclosed. The method for controlling power amplification includes outputting a voltage signal according to the state of network equipment. When the network equipment is in an idle state, at least one power amplifier transistor is switched off according to a voltage signal. | 2016-03-17 |
20160079930 | Low Noise Amplifier - A low noise amplifier includes an amplifier transistor having a source, a gate, and a drain. An input node is coupled to the gate. An output node is coupled to the drain. An inductor is coupled between the gate and the drain. | 2016-03-17 |
20160079931 | DIFFERENTIAL TWO-STAGE AMPLIFIER AND OPERATION METHOD THEREOF - A differential two-stage amplifier is provided. The differential two-stage amplifier includes an input circuit, a bias circuit, a common mode feedback circuit, a first stage amplifier, a second stage amplifier and a current compensation circuit. The input circuit receives an input current. The bias circuit provides a bias current. The first stage amplifier is coupled to the input circuit and the second stage amplifier. The common mode feedback circuit is coupled to the second stage amplifier and adjusts a common mode feedback current according to a common mode voltage, wherein the input current is made up of the bias current and the common mode feedback current. The current compensation circuit provides a compensation current, wherein when a temperature of the differential two-stage amplifier is greater than a predetermined temperature, the compensation current is input to the input circuit. | 2016-03-17 |
20160079932 | APPARATUS AND METHOD FOR DIGITAL PRE-DISTORTION IN WIRELESS COMMUNICATION SYSTEM - Provided is a Digital Pre-Distortion (DPD) apparatus and method for processing a signal that is input to a power amplifier in a wireless communication system. The DPD apparatus includes a DPD unit configured to pre-distort an input signal that is input to the power amplifier, using DPD information; and a signal processor configured to capture signals for estimation of the DPD information from each of an input terminal and an output terminal of the power amplifier, detect peak signals of the captured signals, separate the detected peak signals into a plurality of intervals depending on a power level, separately store the detected peak signals, estimate the DPD information using the peak signals stored for each interval, and provide the estimated DPD information to the DPD unit. | 2016-03-17 |
20160079933 | BASEBAND EQUIVALENT VOLTERRA SERIES FOR DIGITAL PREDISTORTION IN MULTI-BAND POWER AMPLIFIERS - Methods, systems and apparatus for modelling a power amplifier and pre-distorter fed by a multi-band signal are disclosed. According to one aspect, a method includes receiving a multi-band signal and generating a discrete base band equivalent, BBE, Volterra series based on the received multi-band signal, where the series has distortion products grouped according to determined shared kernels. The shared kernels are determined based on a transformation of a real-valued continuous-time pass band Volterra series without pruning of kernels. | 2016-03-17 |
20160079934 | World Band Radio Frequency Front End Module, System and Method Thereof - The present disclosure relates to a World Band Radio Frequency Power Amplifier and a World Band Radio Frequency Front End Module. The World Band Power Amplifier can contain at least one broadband power amplifier connected to a switch which can direct an RF input signal to a plurality of transmission paths, each transmission path configured for a different frequency. The World Band RFFE Module is more integrated version of the World Band Power Amplifier that can contain broadband RF PA(s), switches, logic controls, filters, duplexers and other active and passive components. | 2016-03-17 |
20160079935 | SIGNAL AMPLIFIER HAVING INVERTED TOPOLOGY IN STACKED COMMON GATE STRUCTURE - A signal amplifier may include a first common gate-type amplifying unit connected to a source voltage terminal, dividing an input signal into two signals, amplifying the two divided signals, respectively, and providing a first signal and a second signal, a second common gate-type amplifying unit connected to a ground, dividing the input signal into two signals, amplifying the two divided signals, respectively, and providing a third signal and a fourth signal, a signal summing unit summing the first signal and the second signal from the first common gate-type amplifying unit and the third signal and the fourth signal from the second common gate-type amplifying unit, and an impedance matching unit impedance-matching a signal summed by the signal summing unit. | 2016-03-17 |
20160079936 | TRANS-IMPEDANCE AMPLIFIER ARRANGEMENT AND CONTROL MODULE - A trans-impedance amplifier arrangement has an input configured to receive an output from a photo-detector, a current monitoring circuit configured in use to provide a current monitor signal dependent on a current through the photo-detector, and an output configured to output said current monitor signal to a control module, said output further configured to receive control information from said control module. A control module is configured to receive the current monitor signal and to provide the control information. | 2016-03-17 |
20160079937 | AMPLIFIER APPARATUS WITH CONTROLLED NEGATIVE OUTPUT IMPEDANCE - An audio amplifier apparatus includes an audio amplifier which receives a single audio signal and produces a plus phase audio signal and a minus phase audio signal, both dependent upon the single audio signal. The plus phase audio signal and minus phase audio signal are received by first and second inputs of a speaker, respectively. A current sensing circuit senses a level of current received by the first or second inputs of the speaker and outputs a current sensing signal dependent upon the sensed level of current. An amplifying circuit receives and amplifies the current sensing signal. A mixer circuit receives the amplified current sensing signal and an audio drive signal and produces the single audio signal dependent upon the amplified current sensing signal and the audio drive signal. The single audio signal is produced at a node in-between two resistors. | 2016-03-17 |
20160079938 | MODULATION METHOD FOR SWITCHING MODULATOR - An exemplary embodiment of the present disclosure illustrates a modulation method for a switching modulator. Firstly, a data signal is received. Then, a first output signal at a first output side of the switching modulator and a second output signal at a second output side of the switching modulator are generated according to the data signal received, wherein the first output signal is an addition signal of a first pulse signal and the data signal, the second output signal is a second pulse signal, the first pulse signal and the second pulse signal are aligned to a same pulse width, and the pulse width equals to a minimum resolution of the switching modulator. | 2016-03-17 |
20160079939 | Resonant Pre-Driver for Switching Amplifier - An arrangement and a method for improving the efficiency of a multistage switching amplifier using a resonant circuit element is presented. The multistage amplifier comprises a pre-driver amplifier, a final stage amplifier and a series L-C arrangement coupled between the pre-driver amplifier and the final stage amplifier. The series L-C arrangement forms a parallel L-C resonant circuit with a gate to source capacitor of an input transistor of the final stage amplifier. An oscillation of energy takes place between the gate to source capacitor of the input transistor of the final stage amplifier and the series L-C arrangement. This oscillation of energy provides the final stage amplifier with driving current and improves efficiency of the overall multistage amplifier arrangement. | 2016-03-17 |
20160079940 | APPARATUS AND METHODS FOR POWER AMPLIFIERS - Apparatus and methods for power amplifiers are disclosed. In one embodiment, a power amplifier circuit assembly includes a power amplifier and an impedance matching network. The impedance matching network is operatively associated with the power amplifier and is configured to provide a load line impedance to the power amplifier between about 6 Ω and about 10 Ω. The impedance matching network includes a fundamental matching circuit and one or more termination circuits, and the fundamental matching circuit and each of the of the one or more termination circuits include separate input terminals for coupling to an output of the power amplifier so as to allow the fundamental matching circuit and each of the one or more termination circuits to be separately tuned. | 2016-03-17 |
20160079941 | INSTRUMENTATION AMPLIFIER - An instrumentation amplifier includes: a capacitive feedback closed-loop amplifier, an input capacitor charging module, a feedback capacitor discharging module, a noise separation module and a logic controller. The capacitive feedback closed-loop amplifier includes a fully differential operational amplifier, a first input capacitor, a second input capacitor, a first feedback capacitor and a second feedback capacitor. The input capacitor charging module is configured to charge the first input capacitor and the second input capacitor periodically. The feedback capacitor discharging module is configured to discharge the first feedback capacitor and the second feedback capacitor periodically. The noise separation module is configured to separate a noise from a signal using a chopping modulation technology. The logic controller is connected to the input capacitor charging module, the feedback capacitor discharging module and the noise separation module to control the modules to operate. | 2016-03-17 |
20160079942 | COMMON-GATE AMPLIFIER FOR HIGH-SPEED DC-COUPLING COMMUNICATIONS - In one embodiment, a receiver comprises a differential common-gate amplifier having a differential input and a differential output, wherein the differential input comprises a first input and a second input, and the differential common-gate amplifier is configured to amplify an input differential signal at the differential input into an amplified differential signal at the differential output. The receiver also comprises a common-mode voltage sensor configured to sense a common-mode voltage of the input differential signal, a replica circuit configured to generate a replica voltage that tracks a direct current (DC) voltage at at least one of the first and second inputs, and a comparator configured to compare the sensed common-mode voltage with the replica voltage, and to adjust a first bias voltage input to the differential common-gate amplifier based on the comparison, wherein the DC voltage depends on the first bias voltage. | 2016-03-17 |
20160079943 | Two Differential Amplifier Configuration - An apparatus is disclosed for providing a common mode voltage to the inputs of a first differential amplifier which outputs the difference between two signals. A second differential amplifier receives the output of the first differential amplifier, and the output of the second differential amplifier is fed back to the inputs of the first differential amplifier as a common mode voltage. Since both inputs of the first differential amplifier receive the fed hack common mode voltage, the first differential amplifier still outputs only the difference in the two signals, but the presence of the common mode voltage allows the first differential amplifier to operate with lower noise if the voltage levels of the inputs to the first differential amplifier vary. The second differential amplifier may be of significantly lower quality and cost than the first differential amplifier, without affecting the performance of the first differential amplifier. | 2016-03-17 |
20160079944 | PRECISION, HIGH VOLTAGE, LOW POWER DIFFERENTIAL INPUT STAGE WITH STATIC AND DYNAMIC GATE PROTECTION - A precision, high voltage, low power differential input stage including static and dynamic gate protection is disclosed herein. The differential input stage incorporates the performance of low voltage transistors with the high voltage capability of high voltage transistors. The transistors may be MOSFETs or the like. In addition, gate protection is provided to protect against large DC voltages and AC voltage transitions. The differential input stage includes a pair of input circuits, such as positive and negative input circuits, each including a cascode combination of low and high voltage transistors. In each cascode stage, the low voltage transistor is fabricated with a gate threshold voltage that is as high or higher than that of the high voltage transistors. The low voltage, high threshold transistors in the cascode stages may be configured to match each other. Resistors and capacitors may be provided to protect against excessive input current and voltage. | 2016-03-17 |
20160079945 | PROGRAMMABLE IMPEDANCE NETWORK IN AN AMPLIFIER - The disclosure provides an amplifier. The amplifier includes a first transistor that receives a first input. A second transistor receives a second input. A plurality of impedance networks is coupled between the first transistor and the second transistor. At least one impedance network of the plurality of impedance networks includes a first impedance path and a second impedance path. The first impedance path is activated during single ended operation, and the second impedance path is activated during differential operation. | 2016-03-17 |
20160079946 | MULTI-BAND LOW NOISE AMPLIFIER WITH A SHARED DEGENERATION INDUCTOR - An apparatus includes a first transistor configured to amplify first signal components within a first frequency band of a radio frequency signal, a second transistor configured to amplify second signal components within a second frequency band of the radio frequency signal, and a third transistor configured to amplify third signal components within a third frequency band of the radio frequency signal. The apparatus also includes a degeneration inductor having a first tapping point, a second tapping point, and a third tapping point. The first tapping point is coupled to the first transistor, the second tapping point is coupled to the second transistor, and the third tapping point is coupled to the third transistor. | 2016-03-17 |
20160079947 | MULTIBAND DUCKER - A multiband ducker is configured to duck a specific range of frequencies within a music signal in proportion to a corresponding range of frequencies within a speech signal, and then combine the ducked music signal with the speech signal for output to a user. In doing so, the multiband ducker separates the music signal into different frequency ranges, which may include low, middle, and high-range frequencies. The multiband ducker then reduces the amplitude of the specific range of frequencies found in the speech signal, typically the mid-range frequencies. When the ducked music signal and the speech signal are combined, the resultant signal includes important frequencies of the original music signal, including low-range and high-range, thereby allowing perception of the music signal to continue in relatively uninterrupted fashion. Additionally, the combined signal also includes the speech signal, allowing for the perception of intelligible speech concordant with the perception of music. | 2016-03-17 |
20160079948 | EFFICIENT PASSIVE BROADBAND GYRATOR - A gyrator for AC signals comprises a Hall effect material, means for coupling an alternating current (I | 2016-03-17 |
20160079949 | RESISTOR ATTENUATOR WITH SWITCH DISTORTION CANCELLATION - A programmable (multistep) resistor attenuator includes distortion cancellation for harmonic distortion currents. The attenuator includes at last one attenuation stage coupled between a signal input node and a virtual ground node (such as an input to a differential amplifier). The attenuation node is: (a) coupled to the input node through a resistor R; (b) coupled to the virtual ground node through a resistor kR and a virtual ground switch Swf with an on resistance Rswf; and (c) coupled to a differential ground through a resistor mR and a differential ground switch Swp with an on resistance Rswp. Swp is sized relative to Swf such that, when both Swp and Swf are conducting, a component Ipnf of a current Ipn through Rswp and mR to the attenuation node and branching into kR and Rswf, matches, in phase and magnitude, a harmonic current Ifn from the virtual ground through Rswf and kR to the attenuation node, thereby substantially canceling the harmonic distortion appearing at the virtual ground. Distortion cancellation can be based on cancellation is based on matching switches Swf and Swp and the resistors R, mR, kR, and hence is insensitive to PVT variations, input frequency and amplitude. an optimum ratio of Rswp and Rswf is a function of only a ratio of resistors, and hence is insensitive to values of Rswp and Rswf. The attenuator architecture is extendable to multistage configurations. | 2016-03-17 |
20160079950 | VIA SYSTEM OF PRINTED CIRCUIT BOARD AND METHOD OF MAKING SAME - A printed circuit board (PCB) includes a top outer layer, a bottom outer layer, a signal transmission layer, an inner signal transmission layer, and a via system defined in the PCB. The via system includes two pairs of vias configured to transmit signals from a transmitter to a receiver. A signal transmission pathway is defined in the top outer layer, the signal transmission layer, and the inner signal transmission layer. Signals are sent from the transmitter to a first pair of vias, the signals are transmitted from the first pair of vias to a second pair of vias, and the signals are sent from the second pair of vias to the receiver. The two pairs of vias and the signal transmission pathway provide impedance matching to the signals. | 2016-03-17 |
20160079951 | WIRELESS POWER TRANSMITTER APPARATUS HAVING POWER TRANSMITTER APPARATUS AND POWER RECEPTION APPARATUS SUPPLIED WITH ELECTRIC POWER ENERGY VIA SPACE - A power transmitter apparatus of a wireless power transmitter apparatus transmits electric power from the power transmitter apparatus to a power reception apparatus by electromagnetically coupling a power transmitter apparatus resonance coil with a power reception apparatus resonance coil. The power transmitter apparatus includes a control signal detector portion that generates a control signal based on a voltage change of a voltage across both terminals of the power transmitter apparatus resonance coil and transmits the control signal; and a switching circuit that resonates the power transmitter apparatus resonance coil on the basis of the control signal. | 2016-03-17 |
20160079952 | RADIO-FREQUENCY MODULE COMPONENT - A radio-frequency module component includes a splitter/combiner and a shield case. The splitter/combiner includes a multilayer body, a common input/output electrode, a low-band input/output electrode, a high-band input/output electrode, and outer ground electrodes. The multilayer body includes insulating layers and electrode patterns stacked on each other, and side surfaces opposed to each other. The common input/output electrode is disposed on one of the side surfaces and a bottom surface of the multilayer body. The low-band input/output electrode and the high-band input/output electrode are disposed on another of the side surfaces and the bottom surface of the multilayer body. An additional side surface of the multilayer body opposes a side surface of the shield case in the closest proximity to each other. | 2016-03-17 |
20160079953 | INTEGRATED MEMS AND IC SYSTEMS AND RELATED METHODS - An integrated MEMS and IC system (MEMSIC), as well as related methods, are described herein. According to some embodiments, a mechanical resonating structure is coupled to an electrical circuit (e.g., field-effect transistor). For example, the mechanical resonating structure may be coupled to a gate of a transistor. In some cases, the mechanical resonating structure and electrical circuit may be fabricated on the same substrate (e.g., Silicon (Si) and/or Silicon-on-Insulator (SOI)) and may be proximate to one another. | 2016-03-17 |
20160079954 | RESONATOR DEVICE, ELECTRONIC APPARATUS, AND MOVING OBJECT - A resonator device includes a base including a fixed section and a movable section connected to the fixed section, a resonator element including a first base section, a second base section, and a vibration arm, one end of which is connected to the first base section and the other end of which is connected to the second base section, the first base section being fixed to the fixed section and the second base section being fixed to the movable section, a weight section connected onto the movable section, and a stress relaxing section provided between a connection region of the weight section and the vibration arm. | 2016-03-17 |
20160079955 | PIEZOELECTRIC VIBRATION MEMBER, METHOD OF MANUFACTURING THE SAME, AND PIEZOELECTRIC VIBRATOR - There is provided a piezoelectric vibration member including: a vibration substrate including a vibrating portion and a surrounding portion which is thinner than the vibrating portion; and vibrating electrodes disposed on one surface and the other surface of the vibrating portion in a thickness direction, wherein the vibrating portion includes protrusion portions protruding in relation to one surface and the other surface of the surrounding portion in the thickness direction, and at least one side surface of the protrusion portion has two or more crystal planes. | 2016-03-17 |
20160079956 | ACOUSTIC RESONATOR AND METHOD OF MANUFACTURING THE SAME - There is provided an acoustic resonator including: a resonance part including a first electrode, a second electrode, and a piezoelectric layer interposed between the first and second electrodes; and a substrate provided below the resonance part, wherein the substrate includes at least one via hole penetrating through the substrate and a connective conductor formed in the via hole and connected to at least one of the first and second electrodes. Therefore, reliability of the connective conductor formed in the substrate may be secured. | 2016-03-17 |
20160079957 | SURFACE ACOUSTIC WAVE DEVICE - A surface acoustic wave device includes a piezoelectric substrate, a dielectric film, IDT electrodes, and a resin member. The surface acoustic wave device includes a resin contact region where the piezoelectric substrate and the resin member are in direct contact with each other. The resin contact region has a shape surrounding the IDT electrodes. Because the resin member exhibits a strong adhesion force with respect to the piezoelectric substrate, peeling-off between the piezoelectric substrate and the resin member is significantly reduced or prevented, and an airtight condition is maintained in the interior of the surface acoustic wave device. | 2016-03-17 |
20160079958 | ACOUSTIC RESONATOR COMPRISING VERTICALLY EXTENDED ACOUSTIC CAVITY - An acoustic resonator device includes a substrate, a bottom electrode, a piezoelectric layer, and a top electrode. The top electrode includes a first top comb electrode having a first top bus bar and first top fingers extending in a first direction from the first top bus bar, and a second top comb electrode having a second top bus bar and second top fingers extending in a second direction from the second top bus bar, substantially opposite to the first direction, such that the first and second top fingers form a top interleaving pattern. One of the bottom and top electrodes is a composite electrode having a thickness of approximately λ/2, where λ is a wavelength corresponding to thickness extensional resonance frequency of the acoustic resonator. The piezoelectric layer and one of the bottom the electrodes that is not the composite electrode have a combined thickness of approximately λ/2. | 2016-03-17 |
20160079959 | PROGRAMMABLE STEP ATTENUATOR WITH CROSS CONNECTION - Disclosed examples include a programmable attenuator circuit providing selective cross coupling of impedance components between circuit input nodes and output nodes according to control signals to set or adjust an attenuation value of the attenuator circuit. The attenuator circuit includes a plurality of attenuator impedance components, and a switching circuit to selectively connect at least a first attenuator impedance component between the first input node and the second output node, to selectively connect at least a second attenuator impedance component between the second input node and the first output node, to selectively connect a third attenuator impedance component between the first input node and the first output node, and to selectively connect a fourth attenuator impedance component between the second input node and the second output node. | 2016-03-17 |
20160079960 | Fast FIR Filtering Technique for Multirate Filters - Data samples are filtered by using a digital filter where the length of an impulse response of the digital filter is finite, an impulse response of the digital filter is symmetric and the operation of the digital filter is multi-rate. The method uses a polyphase decomposition to break down the input data stream into N parallel substreams and the multi-rate digital filter is separated by a polyphase decomposition into multiple lower-rate sub-filters where each of the sub-filters is separated into a set of simpler sub-sub-filters which operate upon the same set of input samples and which have impulse responses which are jointly centro-symmetric, a set of pre-filtering arithmetic structures, and a set of post-filtering arithmetic structures and performing each such pair of sub-sub-filtering operations using a single shared filter structure, a set of pre-filtering combining adders, and a set of post-filtering separating adders. | 2016-03-17 |
20160079961 | PRECISION FREQUENCY MONITOR - A precision frequency monitor provides a precision frequency monitor value (PFM) indicative of the precision of the frequency or period of an input reference signal. A first averaging module is responsive to the input reference signal to find an average frequency or period during successive predetermined time periods defining operational cycles. A second averaging module is responsive to an output of the first averaging module to average the output of the first averaging module over N operational cycles, where N is an integer, and output an updated PFM value every N operational cycles. An infinite impulse response (IIR) filter is responsive to the output of the first averaging module to filter the output of the first averaging module to output interim updated PFM values within each sequence of N operational cycles. | 2016-03-17 |
20160079962 | Electronic Device with Switched-Capacitor Tuning and Related Method - A device comprises a first capacitor block comprising a plurality of first capacitors connected in a first configuration, a second capacitor block comprising a plurality of second capacitors connected in the first configuration, a third capacitor block comprising a plurality of third capacitors connected in a second configuration, a fourth capacitor block comprising a plurality of fourth capacitors connected in the second configuration, a first switch connected between the first capacitor block and the second capacitor block, a second switch connected between the third capacitor block and the fourth capacitor block, a third switch connected between the first capacitor block and the fourth capacitor block and a fourth switch connected between the third capacitor block and the second capacitor block. | 2016-03-17 |
20160079963 | APPARATUS AND METHOD FOR GENERATING RAMP SIGNAL - Provided is a ramp signal generating apparatus. The ramp signal generating apparatus includes N (N is a natural number) ramp signal generating cells that are connected in series to each other. Each of the ramp signal generating cells includes a power voltage unit for supplying current source, a latch unit for latching an output voltage of the power voltage unit, and a switch unit for outputting the voltage latched by the latch unit as an output voltage in response to an input signal. | 2016-03-17 |
20160079964 | INTEGRATED LEVEL SHIFTER - GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions. Some devices employ electro-static discharge circuits and features formed within the GaN-based devices to improve the reliability and performance of the half bridge power conversion circuits. | 2016-03-17 |
20160079965 | STACKED SWITCHED CAPACITOR ENERGY BUFFER CIRCUIT - SSC energy buffer circuit includes a switching network and a plurality of energy storage capacitors. The switching network may operate at a relatively low switching frequency and can take advantage of soft charging of the energy storage capacitors to reduce loss. Efficiency of the SSC energy buffer circuit can be extremely high compared with the efficiency of other energy buffer circuits. The SSC energy buffer architecture exhibits losses that scale with the amount of energy buffered, such that a relatively high efficiency can be achieved across a desired operating range. Improvements in SSC energy buffer circuits include, in various implementations, the use of ground reference gate drive, the elimination of a separate precharge circuit through control of at least a portion of the switches of the SSC energy buffer circuit, and/or optimized ratio of capacitance values of two or more capacitors in an SSC energy buffer circuit. | 2016-03-17 |
20160079966 | QUADRATURE-BASED INJECTION LOCKING OF RING OSCILLATORS - Technologies are generally described for quadrature-based injection-locking offing oscillators. In some examples, an external signal may be injected into a ring oscillator. Phase signals may be measured from within the ring oscillator and used to determine a mean quadrature error (MQE) that characterizes the difference in frequency between the external signal and the ring oscillator's natural frequency. A control signal may then be generated from the MQE and used to adjust the ring oscillator natural frequency to reduce the difference between the ring oscillator natural frequency and the external signal. | 2016-03-17 |
20160079967 | POWER SEMICONDUCTOR DEVICE AND GATE DRIVER CIRCUIT - A power semiconductor device includes a first output transistor connected to a first node at a first end of a current path thereof. The power semiconductor device further includes a second output transistor connected to a second end of the current path of the first output transistor at a first end of a current path thereof and to a second node at a second end of the current path. The power semiconductor device further includes a gate driver circuit that controls the first and second output transistors. | 2016-03-17 |
20160079968 | TUNABLE TRANSMON CIRCUIT ASSEMBLY - Systems and methods are provided for a tunable transmon qubit. The qubit includes a first Josephson junction on a first path between a transmission line and a circuit ground and second and third Josephson junctions arranged in parallel with one another on a second path between the transmission line and the circuit ground to form a direct current superconducting quantum interference device (DC SQUID). The DC SQUID is in parallel with the first Josephson junction. A capacitor is arranged in parallel with the first Josephson junction and the DC SQUID on a third path between the transmission line and the circuit ground as to form, in combination with the first path, an outer loop of the tunable transmon qubit. A bias circuit is configured to provide a constant bias flux to one of the DC SQUID and the outer loop of the tunable transmon qubit. | 2016-03-17 |
20160079969 | RANDOM SAMPLER ADAPTED TO ONE-DIMENSION SLOW-VARYING SIGNAL - A sampler adapted to a one-dimension slow-varying signal, including: a signal preprocessing unit configured to preprocess an input signal; a slope-controllable sawtooth wave signal generating unit configured to generate a slope-controllable sawtooth wave signal and perform zero-resetting; a signal comparing unit configured to compare the preprocessed input signal from the signal preprocessing unit with the sawtooth wave signal and to output a pulse signal to the generating unit and a signal outputting unit when the preprocessed input signal is equal to the sawtooth wave signal; a counting unit configured to count a number of clock signals while the sawtooth wave signal generating unit is generating the sawtooth wave signal and to transmit the counted number to the signal outputting unit; the signal outputting unit configured to, upon receipt of the pulse signal output from the signal comparing unit, output the number counted by the counting unit at the moment. | 2016-03-17 |
20160079970 | RESISTIVE DIVIDER CIRCUIT FOR A DIFFERENTIAL SIGNAL COMMUNICATIONS RECEIVER - A resistive divider circuit for differential signaling is disclosed. The resistive divider includes a first branch and a second branch and each branch has an input, a first resistive component comprised of a number of unit resistors, a second resistive component comprised of a number of unit resistors, and an output connected between the first resistive component and the second resistive component, the output forming a differential mode output. The first resistive component and the second resistive component are comprised of an equal number of unit resistors. | 2016-03-17 |
20160079971 | DELAY CIRCUIT - Systems and methods for delay control are described herein. In one embodiment, a delay circuit comprises a first delay path and a second delay path. The delay circuit also comprises a plurality of switches, wherein each switch is coupled between different points on the first and second delay paths, and each switch is configured to turn on or off in response to a respective one of a plurality of select signals. The delay circuit further comprises a multiplexer having a first input coupled to an output of the first delay path, a second input coupled to an output of the second delay path, and an output coupled to an output of the delay circuit, wherein the multiplexer is configured to selectively couple one of the outputs of the first and second delay paths to the output of the delay circuit in response to a second select signal. | 2016-03-17 |
20160079972 | POWER SUPPLY VOLTAGE TRANSITION COMPARISON CIRCUIT, POWER SUPPLY VOLTAGE TRANSITION COMPARISON METHOD, AND SEMICONDUCTOR INTEGRATED CIRCUIT - A power supply voltage transition comparison circuit includes a comparator evaluation voltage setting circuit that generates a divided voltage of a power supply voltage; a comparator that compares a reference voltage with the divided voltage; a voltage evaluation circuit that evaluates the power supply voltage based on a result of the comparison; and an evaluation voltage setting value output circuit that changes a ratio between the power supply voltage and the divided voltage based on a result of an evaluation of the power supply voltage. | 2016-03-17 |
20160079973 | METHOD AND DEVICE FOR PROCESSING PWM DATA - The present disclosure provides a method and a device for processing PWM data, so as to reduce the size of the PWM data. The method includes: dividing pulse widths in the PWM data into at least one pulse width group; determining a convergence pulse width for each of the at least one pulse width group, herein each of the at least one pulse width group converges around a same pulse width, respectively; replacing each of the at least one pulse width group with the corresponding convergence pulse width; and representing the PWM data by using the convergence pulse widths. Through the technical solution, the size of the PWM data may be reduced, transmission speed of the PWM data may be improved, and the space for storing the PWM data may be decreased. | 2016-03-17 |
20160079974 | CURRENT CONTROL CIRCUIT - A current control circuit includes a first drive switching device, a gate power source, a control switching device, a first resistor, an operational amplifier, and a switching circuit. The operational amplifier includes: an output terminal connected to the control switching device; a non-inverting input terminal; and an inverting input terminal configured to receive a reference potential. The switching circuit is configured to: input a value based on a potential difference between both ends of the first resistor to the non-inverting input terminal when a current flowing through the first drive switching device is equal to or smaller than a threshold level; and input a value based on a potential on a current pathway between the control switching device and the first drive switching device to the non-inverting input terminal when the current flowing through the first drive switching device is greater than the threshold level. | 2016-03-17 |
20160079975 | HALF BRIDGE DRIVER CIRCUITS - GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments, a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions. | 2016-03-17 |
20160079976 | DEVICE AND METHOD FOR VOLTAGE BOOSTING AND DISPLAY PANEL DRIVER INCORPORATING THE SAME - An integrated circuit device boosts an output voltage which is to be boosted based on the reference power supply voltage, based on another power supply voltage before the reference power supply voltage is supplied. | 2016-03-17 |
20160079977 | OVER-CURRENT AND/OR OVER-VOLTAGE PROTECTION CIRCUIT - A logic inverter with over-current protection, according to one embodiment, includes: a transistor, an input signal line coupled to a gate terminal of the transistor or a base region of the transistor, an output signal line coupled to a drain terminal of the transistor or a collector region of the transistor, a power supply line coupled to the drain terminal of the transistor or a collector region of the transistor, a pull up resistor between a power supply and one of: the drain terminal of the transistor and the collector region of the transistor, and a feedback resistor between ground and one of: a source terminal of the transistor and an emitter region of the transistor. Other systems, methods, and computer program products are described in additional embodiments. | 2016-03-17 |
20160079978 | LEVEL SHIFT AND INVERTER CIRCUITS FOR GAN DEVICES - GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions. Some devices employ electro-static discharge circuits and features formed within the GaN-based devices to improve the reliability and performance of the half bridge power conversion circuits. | 2016-03-17 |
20160079979 | PULSED LEVEL SHIFT AND INVERTER CIRCUITS FOR GAN DEVICES - GaN-based half bridge power conversion circuits employ control, support and logic functions that are monolithically integrated on the same devices as the power transistors. In some embodiments a low side GaN device communicates through one or more level shift circuits with a high side GaN device. Both the high side and the low side devices may have one or more integrated control, support and logic functions. Some devices employ electro-static discharge circuits and features formed within the GaN-based devices to improve the reliability and performance of the half bridge power conversion circuits. | 2016-03-17 |
20160079980 | BUFFER CIRCUIT - A first logic inversion unit generates an input inversion signal and a buffer unit generates a signal having a same logic as that of the input inversion signal. The first logic inversion unit includes first and second MOS transistors. The first and second MOS transistors have conductivity types different from each other. The buffer unit includes third to sixth MOS transistors. The third and fourth MOS transistors are connected in cascade between a third reference potential and an output node of the buffer unit and have conductivity types different from each other. The fifth and sixth MOS transistors are connected in cascade between the output node of the buffer unit and a fourth reference potential and have conductivity types different from each other. | 2016-03-17 |
20160079981 | HIGH-SPEED INVERTER AND METHOD THEREOF - A CMOS (complementary metal oxide semiconductor) inverter includes a PMOS (p-channel metal oxide semiconductor) transistor configured to receive a first input signal via a first input terminal and output a first output signal via a first output terminal, an NMOS (n-channel metal oxide semiconductor) transistor configured to receive a second input signal via a second input terminal and output a second output signal via a second output terminal, and a resistor configured to provide an isolation between the first output signal and the second output signal. In an embodiment, the first input signal is of a fast high-to-low transition but a slow low-to-high transition, and the second input signal is of a fast low-to-high transition but a slow high-to-low transition. A comparative method is also provided. | 2016-03-17 |
20160079982 | PUF CIRCUIT BASED ON ZTC POINT OF MOSFET - A physical unclonable function (PUF) circuit based on a zero temperature coefficient (ZTC) point of a metal oxide semiconductor field effect transistor (MOSFET), the PUF circuit including at least one PUF circuit unit. Each PUF circuit unit includes: a deviation signal generating circuit module, a signal selection circuit, and a comparison output circuit. The deviation signal generating circuit module includes two deviation signal generating circuits. A control voltage input terminal of the deviation signal generating circuit is supplied with a control voltage, and the control voltage enables a first NMOS, a second NMOS, a third NMOS, a fourth NMOS, a fifth NMOS, a sixth NMOS, a seventh NMOS, and an eighth NMOS to work at a ZTC point. | 2016-03-17 |
20160079983 | RECONFIGURABLE CIRCUIT - According to one embodiment, a reconfigurable circuit includes first, second, third and fourth circuit blocks arranged with a matrix, a first conductive line shared by the first and second circuit blocks, a second conductive line shared by the third and fourth circuit blocks, a third conductive line shared by the first and third circuit blocks, the third conductive line crossing the first and second conductive lines, a fourth conductive line shared by the second and fourth circuit blocks, the fourth conductive line crossing the first and second conductive lines, a first controller controlling voltages to be applied to the first and second conductive lines, and a second controller controlling voltages to be applied to the third and fourth conductive lines. | 2016-03-17 |
20160079984 | DEVICE FOR GENERATING A CLOCK SIGNAL BY FREQUENCY MULTIPLICATION - A pulse signal generator has an input receiving an initial pulse signal having an initial period, an oscillator generating an oscillator signal, a first stage and a second stage. The first stage is synchronized with the oscillator signal and configured to deliver a secondary pulse signal having a separation between successive pulses that is representative of an integer part of a division of the initial period by an integer N. The first stage further delivers an auxiliary signal representative of a fractional part of the division and containing, for each pulse of the secondary pulse signal, an indication of a time shift to be applied to the pulse taking into account the separation. The second stage is configured to receive the successive pulses and the corresponding time shift indications and generate successive corresponding pulses of an output pulse signal. | 2016-03-17 |
20160079985 | QUADRATURE LOCAL OSCILLATOR PHASE SYNTHESIS AND ARCHITECTURE FOR DIVIDE-BY-ODD-NUMBER FREQUENCY DIVIDERS - Certain aspects of the present disclosure provide techniques and apparatus for generating in-phase and quadrature (I/Q) local oscillator (LO) signals that may be synthesized using signals output from a divide-by-odd-number frequency divider (e.g., Div3 or Div5). This may be accomplished by deriving each period of the LO signal from a selected output signal of the frequency divider such that the average phase over multiple LO periods yields desired I/Q LO signals. This operation may save current because a phase interpolation circuit need not be used and moreover, provide I/Q LO signals having equal gain. Certain aspects of the present disclosure also provide a “dummy” LO signal, which may be used to in conjunction with a “dummy load” to present constant load impedance to a low noise amplifier (LNA) during time gaps (periods of an oscillating signal input to the frequency divider) in which the I/Q LO signals are all off. | 2016-03-17 |
20160079986 | TEMPERATURE COMPENSATED CRYSTAL OSCILLATOR - The temperature compensated crystal oscillator has a rectangular substrate, a frame which is provided on an upper surface of the substrate, a mounting frame which has joining pads which are provided along an outer circumferential edge of the upper surface and which is provided on a lower surface of the substrate by bonding of joining terminals which are provided along the outer circumferential edge of the lower surface of the substrate and the joining pads, a crystal element which is mounted on an electrode pad which is provided on the upper surface of the substrate in a region surrounded by the frame, an integrated circuit element which has a temperature sensor and which is mounted on a connection pad which is provided on the lower surface of the substrate in a region surrounded by the mounting frame, and a lid which is joined to the upper surface of the frame. | 2016-03-17 |