09th week of 2014 patent applcation highlights part 18 |
Patent application number | Title | Published |
20140055009 | PIEZOELECTRIC CERAMIC AND PIEZOELECTRIC ELEMENT - A piezoelectric ceramic is constituted by a polycrystal whose main phase is an alkali-containing niobate perovskite structure, where both elemental nickel and elemental manganese are present at the grain boundary of the polycrystal. The piezoelectric ceramic is such that drop in piezoelectric characteristics due to application of high electric field is suppressed. | 2014-02-27 |
20140055010 | POWER GENERATOR INTEGRATED WITH BEARING - A bearing has a first ring ( | 2014-02-27 |
20140055011 | Housing for Holding a Flat Screen - A housing is provided for holding a flat screen, having a frame which defines a housing interior for holding the flat screen. The frame is produced from a flat profile element which has multiple set bending points which serve to establish the corner regions of the frame. On its inside, the frame has an inner channel into which a heat-dissipating element is inserted in such a way that it serves to transmit heat from the housing interior to the frame. | 2014-02-27 |
20140055012 | VENDING MACHINE - A vending machine includes an enclosure, a bracket, and two hangers. Each of the two brackets includes two rods and a plurality of cross bars connecting the two rods. Mounting slots for the hangers are defined in each of the two rods. The mounting portions of the two hangers are secured to the enclosure and to the rods, and provide locational and structural support for the brackets simply by virtue of gravity, avoiding the need for screws in assembling and disassembling the bracket. | 2014-02-27 |
20140055013 | METHOD FOR MANUFACTURING CASING AND CASING OF PORTABLE ELECTRONIC DEVICE - A method for manufacturing a casing includes steps of providing a film; attaching a strengthening plate onto the film; placing the film and the strengthening plate into a mold; and injecting a plastic material into the mold such that the plastic material and the strengthening plate are combined with each other. | 2014-02-27 |
20140055014 | CASE FOR HOUSING AND PROTECTING AN ELECTRONIC DEVICE - A case for housing and protecting an electronic device against moisture damage and contaminants is disclosed. The case comprises a first member having a first plainer section and a first perimetric wall formed thereon, and a second member having a second planer section and a second perimetric wall formed thereon. The first perimetric wall and the second perimetric wall are engaged forming an overlap and a sealing structure for a watertight seal. The sealing structure includes a mated ring and a ridge-to-groove interlock. The case further comprises a plurality interface feature accesses, including an optical access, an audio access, a button, and at least one open access for electrical connection. The case provides a cover with a plug adapted to cover up the open electrical connection access to form a watertight seal. | 2014-02-27 |
20140055015 | Entrance Device Housing With Detachable Front Panel - The present invention relates to an entrance device housing with detachable front panel, mainly comprising: an accommodating body and a detachable front panel, in which the panel of the entrance device housing is detachable, so that the users are able to replace the panel of the entrance device by themselves as they like. Moreover, both the upper cover and the bottom box of the accommodating body include a plurality of water-guiding grooves, such that the water droplets onto the front surface and the rear surface of the accommodating body would be ruled out via the water-guiding grooves. Furthermore, a situation light accommodating structure is disposed on the detachable panel, and the light source in the situation light accommodating structure can emit light via the light-emitting surface during night, so as to facilitate the doorplate on the entrance wall show a beautiful and dreamy situation. | 2014-02-27 |
20140055016 | IMAGE FORMING APPARATUS - The image forming apparatus includes an image forming section; a conveyance path to convey a recording medium to the image forming section; a drawer unit including the conveyance path and configured to be pulled out relative to the apparatus; an electrical cable to electrically connect the drawer unit and an interior of the apparatus even when the drawer unit is pulled out from the apparatus; and a cable holder (a first regulating member) to ensure that that the cable is securely prevented from protruding from the drawer unit. According to the present invention, the electric cable is prevented from running off from the drawer unit due to the folding of the cable caused by the regulating member, so that the electric cable is prevented from getting hung up on the parts disposed in the body. | 2014-02-27 |
20140055017 | ANTI-TIP AND RETENTION ASSEMBLY FOR APPLIANCE SUPPORT PLATE - A shelving assembly includes a support plate, left and right side supports, and rear and front anti-tip and retention features. The side supports each include a front end located adjacent to a front edge of the support plate, and a rear end located adjacent to a rear edge of the support plate. A portion of the rear and front anti-tip and retention features is disposed above the support plate for preventing tipping and for retaining the support plate on the side supports. The front and rear anti-tip and retention features are spaced apart such that a majority of the top surface of the support plate along opposite left and right side edges is freely exposed and unencumbered by the front and rear anti-tip and retention features. | 2014-02-27 |
20140055018 | SHEET METAL STRUCTURE - A sheet metal planter comprises three panel types, can be assembled with readily available tools, can be disassembled to fit in a compact space, can be made in more than one shape, does not require fasteners in one embodiment or places a modest load on fasteners in another embodiment, and is aesthetically pleasing. | 2014-02-27 |
20140055019 | LOW PROFILE HINGE AND PIN MOUNT - Described embodiments provide a low profile hinge and pin mount to be mounted within a small encasement. The mount has a low profile and takes up minimal space within the small encasement without sacrificing structural support for a component and external forces placed on the mount. The mount includes a bracket, a pin and a fastener. The bracket includes a rounded end, a fastening end and a beam configured to support the component placed between the rounded end and the fastening end. The rounded end of the bracket is sized and shaped to fit in an enclosure of the encasement and to pivot about the pin during a rework process. Methods for installing and reworking the low profile hinge and pin mount are described. | 2014-02-27 |
20140055020 | DRAWER PULL-OUT GUIDE ELEMENT - A drawer pull-out guide has a body rail to be attached to a furniture body, a drawer rail to be attached to the drawer and is mounted such that it can move relative to the body rail, and a locking apparatus arranged on the drawer rail so that the drawer can be releasably locked relative to the drawer rail. The locking apparatus has at least one latching part mounted so that it can be moved between an arrest position, which locks the drawer, and a release position, which releases the drawer. A carrier rail is premounted on the drawer, and the carrier rail has, in cross section, a portion which has a V-shape and has two vertically running limbs. This portion of the carrier rail surrounds the drawer rail, and the latching part of the locking apparatus can be releasably latched to a limb of the carrier rail. | 2014-02-27 |
20140055021 | PULL-OUT GUIDE FOR A DRAWER - A pull-out guide for a drawer having a body rail which can be attached to the furniture body and having at least one pull-out rail which can be moved relative to the body rail, comprising a holding element with at least one attachment means by means of which the holding element can be attached or is attached to the pull-out rail, and a connection element by means of which the drawer can be connected to the pull-out rail, wherein the connection element is mounted such that it can be moved relative to the holding element between a first end position and a second end position, wherein a spring element is provided, said spring element holding the connection element in a neutral position which is located between the first end position and the second end position. | 2014-02-27 |
20140055022 | LUMINAIRE - An LED module substrate includes a substrate main body, an LED mounted on one plane of the substrate main body, and a contact mounted at an edge of the one plane of the substrate main body and electrically connected to the LED. A cover section covers the LED module substrate in which the contact and the thermal radiation sheet are exposed. A lamp is attached to a socket. The socket includes a terminal electrically connected to the contact by the attachment of the lamp. A luminaire main body includes a thermal radiator including a contact surface and a recess. The lamp attached to the socket is brought into contact with and thermally connected to the contact surface. The recess is provided in a position opposed to the terminal of the socket. | 2014-02-27 |
20140055023 | Spark Plug - A spark plug having a spark plug body, a center electrode, and a rod-shaped ground electrode that is attached to a front end of the spark plug body and has an electrode end section with an end surface and two side surfaces. The electrode end section is provided with a step onto which is attached a precious metal component with an ignition surface that, together with the center electrode, forms a spark air gap. The step formed in the electrode end section and the precious metal component attached thereto extend across the entire width (B) of the electrode end section so that the precious metal component is flush with the electrode end section on the two sides surfaces, as well as the end surface. | 2014-02-27 |
20140055024 | ION SOURCE DEVICES AND METHODS - An ion source includes a chamber defining an interior cavity for ionization, an electron beam source at a first end of the interior cavity, an inlet for introducing ionizable gas into the chamber, and an arc slit for extracting ions from the chamber. The chamber includes an electrically conductive ceramic. | 2014-02-27 |
20140055025 | ELECTRON GUN AND ELECTRON BEAM DEVICE - An electron gun cathode ( | 2014-02-27 |
20140055026 | AMALGAM BALLS HAVING AN ALLOY COATING - Energy-saving lamps contain a gas filling of mercury vapour and argon in a gas discharge bulb. Amalgam balls are used for filling the gas discharge bulb with mercury. Novel coated balls whose operating life in the case of automatic metered introduction is increased by coating of the balls with an alloy powder and conglutination of the amalgam balls during storage and processing is prevented are proposed. | 2014-02-27 |
20140055027 | METHOD FOR FABRICATING FIELD EMISSION CATHODE, FIELD EMISSION CATHODE THEREOF, AND FIELD EMISSION LIGHTING SOURCE USING THE SAME - A method for fabricating field emission cathode, a field emission cathode, and a field emission lighting source are provided. The method includes: forming a catalyst crystallite nucleus layer on the surface of cathode substrate by self-assembly of a noble metal catalyst, growing a composited nano carbon material on the cathode substrate by using a TCVD process, in which the composited nano carbon material includes coil carbon nano tubes and coil carbon nano fibers. The measured quantity of total coil carbon nano tubes and coil carbon nano fibers is higher than 40%. The field emission cathode is fabricated by the aforementioned method, and the field emission lighting source includes the aforementioned field emission cathode. | 2014-02-27 |
20140055028 | ORGANIC LIGHT-EMITTING DISPLAY DEVICE - An organic light-emitting display device is provided. The organic light-emitting display device includes a substrate; a display unit on the substrate; and a sealing substrate on the display unit. The sealing substrate includes a first surface facing the display unit and a second surface opposite to the first surface. A first barrier layer is on the first surface or the second surface of the sealing substrate. Thus, the organic light-emitting display device may easily reduce or prevent penetration of external air and moisture. | 2014-02-27 |
20140055029 | Tubelamp retrofit pin safety implementation using existing ballast and fixture - An electric lamp ( | 2014-02-27 |
20140055030 | CONTROL NETWORK FOR LED-BASED LIGHTING SYSTEM IN A TRANSIT VEHICLE - A transit vehicle lighting system has a plurality of LED-based lighting fixtures for providing interior illumination. A control network comprises a plurality of slave nodes for controlling the LED-based lighting fixtures, and a master node for controlling the slave nodes. The master node may be connected to the slave nodes by a combined power/communication bus in a daisy chain fashion. The slave node may include a power regulator and a controller for providing a target current command to the power regulator, and may adjust the target current based upon temperature measurements or a recorded age of the LEDs. An optical sensor may provide automatic dimming. A reduced number of LEDs may be used in an emergency mode. The lighting fixture may include a ceiling panel fixture and a riser panel attachable by way of a hinge mechanism. | 2014-02-27 |
20140055031 | LEAKAGE CURRENT DETECTION CIRCUIT, SEMICONDUCTOR APPARATUS, LED ILLUMINATION APPARATUS, AND VEHICLE - A leakage current detection circuit detects a switch current flowing in a switch which is targeted for leakage monitoring, and generates a detection signal to prohibit operation of a control target circuit which is targeted for control when the switch current does not reach a predetermined threshold value. | 2014-02-27 |
20140055032 | MULTI-SEGMENT LED COMPONENTS AND LED LIGHTING APPARATUS INCLUDING THE SAME - An integrated circuit component can include an integrated circuit package and a plurality of terminals provided on the exterior of the integrated circuit package. The terminals are configured to provide electrical connectivity to an interior of the integrated circuit package and a plurality of light emitting diode (LED) segments that includes an LED string in the interior of the package, coupled to the plurality of terminals. | 2014-02-27 |
20140055033 | PROGRAMMED START CIRCUIT FOR BALLAST - A programmed start ballast circuit is presented having a mode control circuit to selectively switch an inverter output load to control operation for cathode preheating, step dimming and/or anti-arcing operation. | 2014-02-27 |
20140055034 | Phase And Frequency Control Of A Radio Frequency Generator From An External Source - Controlling a phase and/or a frequency of a RF generator. The RF generator includes a power source, a sensor, and a sensor signal processing unit. The sensor signal processing unit is coupled to the power source and to the sensor. The sensor signal processing unit controls the phase and/or the frequency of a RF generator. | 2014-02-27 |
20140055035 | Device And Method For Quick Closing Of An Electric Circuit And A Use Of The Device - A device for quick closing of an electric circuit having a main spark gap with main electrodes and a triggering device. The triggering device has an auxiliary spark gap with auxiliary electrodes for igniting an arc in the main spark gap. The auxiliary electrodes are shielded from the main spark gap by a shielding unit having channel means extending therethrough from an auxiliary spark gap facing side to a main spark gap facing side of the shielding unit. The device further includes a nozzle with a first end being most close to the auxiliary spark gap and a second end most close to the main spark gap. The first end has an inlet opening that is in connection with the channel means and the second end has an outlet opening. The invention also relates to a corresponding method and to a use of the device. | 2014-02-27 |
20140055036 | Web Browser Configurable and Programmable Light Bulb - A self cooling light effects device for use in a standard light bulb socket having a socket adaptor, surface embedded LEDs as means to generate light effects, means to control light effects, and means for cooling. Fiber optic cables provide further light effects. Means to control 5 light effects may include a logic board. Means for cooling may be any combination of fans, heat sinks, heat pipes, thermoelectric cooling, a heat conductive filler, and a heat conductive housing. | 2014-02-27 |
20140055037 | LIGHT SOURCE APPARATUS, METHOD FOR CONTROLLING LIGHT SOURCE APPARATUS, AND DISPLAY APPARATUS - A light source apparatus according to the present invention, includes: a light source substrate on which one or more emission units are located; an optical sheet configured to reflect light from the emission unit; and a detection unit configured to detect reflected light reflected by the optical sheet, wherein the detection unit is located in a position where an amount of change in a detected value due to deflection of the optical sheet when one emission unit is turned ON is a predetermined value or less. | 2014-02-27 |
20140055038 | Device and Method for Generating Light of a Predetermined Spectrum with at Least Four Differently Colored Light Sources - A lighting device and method with a lighting unit which includes several light sources having different color spectra, with a sensor for determining the spectral power distribution emitted by the lighting unit, with a control unit which, as a function of a predetermined spectral power distribution as well as of the spectral power distribution measured by the sensor, acts on a drive unit which individually energizes the light sources of the lighting unit, so that the emitted light has predetermined spectral power distribution, wherein the lighting unit includes at least four light sources, and the control unit uses an optimization algorithm which, as an optimization goal, maximizes a coefficient of weighted sensor values, the coefficient being calculable from individual drive data of the light sources. A secondary condition is met when error between the predetermined spectral power distribution and the measured spectral power distribution is smaller than a limit value. | 2014-02-27 |
20140055039 | Light Color and Intensity Adjustable LED - An integrated photonic device includes a number of LEDs and a feedback mechanism that measures individual LED light outputs using a photo sensor via a light transmitter disposed in the vicinity of individual LEDs. A controller or driver adjusts a current driven to each LED using the detected values according to various logic based on the device application. | 2014-02-27 |
20140055040 | LIGHTING CONTROL SYSTEM - A lighting control system according to the embodiment includes a plurality of lighting fixtures, a lighting control unit, and an access point. The plurality of lighting fixtures are arranged in a lighting area. The lighting control unit is configured so as to control the lighting fixture. The access point transmits a layout chart of a different lighting area depending on an installation position of the access point. | 2014-02-27 |
20140055041 | CHAOTIC APPROACH TO CONTROL OF LIGHTING - At least one controllable source of visible light is configured to illuminate a space to be utilized by one or more occupants. A controller causes the source(s) to emit light in a manner that varies at least one characteristic of visible light emitted into the space over a period of time at least in part in accordance with a chaotic function. | 2014-02-27 |
20140055042 | CONTROLLING APPARATUS AND METHOD, RECORDING MEDIUM, PROGRAM AND INPUTTING AND OUTPUTTING APPARATUS - Disclosed herein is a controlling apparatus for controlling an inputting and outputting apparatus of the active matrix driving type including pixels each having an electroluminescence element whose operation can be changed over between light emitting operation and light receiving operation in response to a voltage applied thereto, including: a removing section for removing, when the light receiving operation is to be performed by the electroluminescence element included in a predetermined pixel, charge accumulated. in a parasitic capacitance upon the light emitting operation performed immediately before the light receiving operation by the electroluminescence element; and a detection section for detecting light inputted from the outside to the inputting and outputting apparatus based on an output from the predetermined pixel including the electroluminescence element whose charge has been removed from the parasitic capacitance thereof by the removing section. | 2014-02-27 |
20140055043 | INTEGRATION OF LED LIGHTING WITH BUILDING CONTROLS - An LED-based light can be installed in a conventional light fixture. The LED-based light can include a sensor operable to output a first signal indicative of whether an area of one or more of the rooms is in an occupied state or a non-occupied state, and the LED-based light can also include an LED controller operable to control at least one LED in the light in response to the first signal. Additionally, the LED-based light can include a transmitter operable to output a second signal indicative of whether the area is in the occupied state or the non-occupied state to a building environment regulator. | 2014-02-27 |
20140055044 | LED CURRENT CONTROL SYSTEM FOR LED DRIVE SYSTEM WITH MULTIPLE DIMMING INPUTS - A LED current control system for use with an LED drive system which includes LED strings connected in series with respective current sink circuits, each of which causes a current to be conducted by the LED string to which it is connected. The drive system includes 3 or more ‘dimming’ inputs with which the LED string currents can be adjusted. The LED current control system comprises at least one minimum circuit which receives two or more dimming inputs and produces an output which is proportional to the lesser of the inputs, a multiplier circuit which receives the outputs of the minimum circuits and at least one other dimming input and produces an output ILED which is proportional to the product of the received signals, and a sink control circuit which receives ILED and controls the current sink circuits such that the string currents vary with ILED. | 2014-02-27 |
20140055045 | DC-DC Converter Using Hysteretic Control and Associated Methods - A control circuit used to control a DC-DC converter includes a duty cycle control unit to control a duty cycle of the DC-DC converter and a hysteretic control unit to maintain a voltage at an output of the DC-DC converter within a narrow range during certain operational time periods. The hysteretic control unit may maintain the converter output voltage within the range by alternately enabling and disabling the duty cycle control unit based on feedback from the DC-DC converter output. In at least one embodiment, the control circuit is used within LED driver circuitry for driving a plurality of LED channels. | 2014-02-27 |
20140055046 | TIME DIVISION MODULATION WITH AVERAGE CURRENT REGULATION FOR INDEPENDENT CONTROL OF ARRAYS OF LIGHT EMITTING DIODES - Current is provided to a segment of light emitting diodes in a plurality of segments of light emitting diodes. Embodiments generate a current and sequentially and separately switch the current to each segment of light emitting diodes in the plurality of segments of light emitting diodes for a corresponding period of time, where the corresponding period of time is based on an average current of the generated current. | 2014-02-27 |
20140055047 | COLOR CORRECTING DEVICE DRIVER - A color correcting device driver is configured to vary the equivalent current into light emitting elements (e.g., LEDs) with the frequency of the AC input current (e.g., 120 Hz). In implementations that include a fly-back controller with a power factor correction (PFC) controller on the primary side, the color correcting device driver performs the method of: 1) turning on the loads (e.g., white and CA strings of LEDs); 2) determining if the voltage supplied to the loads has dropped by a first threshold amount; 3) turning off the loads; and 4) determining if the voltage supplied to loads has recovered by a second threshold amount (or waiting for a fixed amount of time). The method is repeated. In implementations that do not include a PFC controller on the primary side, the color correcting device driver can create a pulse width modulated (PWM) signal. | 2014-02-27 |
20140055048 | SEMICONDUCTOR LIGHT-EMITTING DEVICE - A semiconductor light-emitting device includes at least one light-emitting chip. The light-emitting chip includes plural light-emitting units, which are electrically coupled to each other in series, in parallel or in series-parallel combination; a first-type electrode electrically coupled to an external power source, the first-type electrode being disposed on one of the light-emitting units; a second-type electrode disposed on another of the light-emitting units; and a tapped point for electrically coupling at least one of the light-emitting units to an electronic component. | 2014-02-27 |
20140055049 | ILLUMINATING DEVICE - An illuminating device includes at least one light-emitting source. The light-emitting source includes a substrate; at least one light-emitting chip disposed on the substrate; and at least one constant-current component electrically coupled to the light-emitting chip. The light-emitting chip includes multiple light-emitting units that are electrically coupled in series, in parallel, or in series-parallel; a first-type electrode, disposed on at least one of the light-emitting units, for electrically coupling to a central DC power source; a second-type electrode disposed on at least one light-emitting unit different from the one, on which the first-type electrode is disposed; and a tapped point configured for electrically coupling at least one of the light-emitting units to the constant-current component. | 2014-02-27 |
20140055050 | APPARATUS FOR DRIVING A PLURALITY OF SEGMENTS OF LED-BASED LIGHTING UNITS - An LED-based lighting apparatus includes a plurality of LED-based lighting segments connected in series with a current control device. Each lighting segment has at least one LED-based lighting unit connected in series. A plurality of switch controllers controlled by a switching voltage comparator unit is connected with the plurality of LED-based lighting segments to provide multiple operation modes for turning on different number of LED-based lighting segments. In one embodiment, each switch controller is connected in parallel with a corresponding segment. The switching voltage comparator unit generates a propagation signal that propagates through and controls the plurality of switch controllers. In the other embodiment, each switch controller is connected between a positive end of the corresponding segment and a current control device. The switching voltage comparator unit generates two propagation signals that propagate through and control the plurality of switch controllers. | 2014-02-27 |
20140055051 | LED Driver Having Priority Queue to Track Dominant LED Channel - An electronic circuit for driving a plurality of light emitting diode (LED) channels coupled to a common voltage node includes a priority queue for tracking a dominant LED channel. A queue manager may be provided to keep the priority queue updated during LED drive operations based on operating conditions associated with the LED channels. | 2014-02-27 |
20140055052 | Solid State Lightening Driver with Mixed Control of Power Switch - In order to control of dimming of solid state lighting devices (SSL) a driver circuit drives the SSL subject to an input voltage using a phase-cut dimmer. The driver circuit comprises a transistor operable in two modes, either alternating between on/off states or continuously controlling a current through the transistor. A power converter network provides a switched-mode power converter in conjunction with the transistor when operated in the first mode generating a drive voltage for the SSL. The control unit controls the transistor to selectively operate in one of the two modes; to control the transistor to determine that the input voltage exceeds an input voltage threshold; and to control a drive current through the SSL based on a measurement of a phase-cut angle thereby controlling an illumination level of the SSL device. | 2014-02-27 |
20140055053 | LED CONTROL CIRCUIT WITH AUTO ON/OFF FUNCTION - An LED control circuit with auto ON/OFF function has a power module, a control module, a timer module, a driver module and an LED module with a first LED unit and a second LED unit. The control module generates a time control signal and an LED control signal to respectively activate the timer module and the LED module. The LED module is activated by the LED control signal only when the timer module is turned ON. The timer module can be automatically turned ON/OFF by the time control signal. Moreover, the LED control signal has high potentials and low potentials. The driver module activates the first LED unit and the second LED unit based on two the different potentials of the LED control signal respectively. Both high and low potentials of the LED control are used. The performance of the LED module is improved. | 2014-02-27 |
20140055054 | LIGHT DEVICES HAVING CONTROLLABLE LIGHT EMITTING ELEMENTS - In some embodiments, a light device for generating light includes light emitting diodes (LEDs), and power supply circuitry including at least one switching regulator including switching elements to provide power to the LEDs. The light device includes a device support structure including a device connector and an LED support to support the LEDs, wherein the device connector is one end of the device support structure, and the power supply circuitry is supported by the device support structure. Other embodiments are described. | 2014-02-27 |
20140055055 | POWER CONVERSION WITH CONTROLLED CAPACITANCE CHARGING INCLUDING ATTACH STATE CONTROL - An electronic system includes a controller that actively controls a rate of charging and discharging of an energy storage capacitor to maintain compatibility with a dimmer. The controller actively controls charging of a capacitor circuit in a switching power converter to a first voltage level across the capacitor circuit. The controller further allows the capacitor to discharge to obtain a second voltage level across the capacitor circuit. The second voltage level is sufficient to draw a current through a phase-cut dimmer to prevent the dimmer from prematurely resetting. The first voltage is sufficient to allow the capacitor to discharge to the second voltage level during each cycle of the line voltage. | 2014-02-27 |
20140055056 | TECHNOLOGY TO DESENSITIZE LED LAMPS AGAINST POWER RIPPLES - An LED lamp having an operating voltage range within which if the supply voltage is provided within the operating voltage range, the LED lamp produces light in a designed light range, and which has reduced sensitization to ripples. The LED lamp includes a network of passive elements that are structured such that the I-V characteristic curve has a plateau region within the operating voltage range. For instance, a maximum slope of an I-V characteristic curve of the network is shallower within the operating voltage range than the maximum slope of an I-V characteristic curve of the network below the operating voltage range. | 2014-02-27 |
20140055057 | CURRENT REGULATION APPARATUS - A current regulation apparatus is provided. The current regulation apparatus includes a trans unit, a first switching unit, a voltage detection unit, a voltage comparison unit, and a control unit. The trans unit includes an auxiliary winding unit. The first switching unit controls an operation of the trans unit. The voltage detection unit detects a voltage induced to the auxiliary winding unit. The voltage comparison unit compares a voltage detected by the voltage detection and a reference voltage. The control unit adjusts a turn-on section of the first switching unit according to an output voltage of the voltage comparison unit. | 2014-02-27 |
20140055058 | METHOD AND SYSTEM FOR STABLE DYNAMICS AND CONSTANT BEAM DELIVERY FOR ACCELERATION OF CHARGED PARTICLE BEAMS IN A NON-SCALING FIXED FIELD ALTERNATING GRADIENT MAGNETIC FIELD ACCELERATOR - An accelerator system includes a plurality of cells. Each cell includes a focus magnet and a defocus magnet each configured to create a magnetic field so as to confine and accelerate a particle beam, the focus magnet being configured to focus the particle beam in a horizontal direction and defocus the particle beam in a vertical direction, and the defocus magnet being configured to focus the particle beam in a vertical direction and defocus the particle beam in a horizontal direction. Each of the plurality of cells is configured to confine the particle beam in an isochronous orbit during acceleration. The accelerator system is a non-scaling fixed field alternating gradient particle accelerator (FFAG). | 2014-02-27 |
20140055059 | MOTOR DRIVING DEVICE AND ELECTRIC POWER STEERING APPARATUS INCLUDING MOTOR DRIVING DEVICE - In a motor driving device, a first relay portion is connected between a power source and an inverter portion, a second relay portion is connected between the first relay portion and the inverter portion, and a motor relay portion is connected between the inverter portion and a winding group of a motor. Inverter pre-driver circuits respectively drive switching elements of the inverter portion. A first pre-driver circuit drives the first relay portion. A second pre-driver circuit drives the second relay portion and the motor relay portion. A controller controls driving of the inverter portion, the first relay portion, the second relay portion, and the motor relay portion, and detects a failure of the first relay portion, the second relay portion, and the motor relay portion. | 2014-02-27 |
20140055060 | LINEARIZED CONTROL OF PIEZOELECTRIC ACTUATOR TO REDUCE HYSTERESIS - An exemplary piezoelectric actuator includes a piezoelectric transducer that exhibits displacements when energized with corresponding voltages. A control system is electrically connected to the piezoelectric transducer so as to provide the transducer with the voltages. The control system includes feedback of displacements of the transducer as functions of respective voltage commands and feed-forward of electrical currents passing through the transducer as functions of the respective voltages applied to the transducer. The control system further has a feedback controller connected to receive transducer-displacement data corresponding to the voltages applied to the transducer. The control system further can include a current-feed-forward amplifier connected to receive transducer-current data corresponding to the voltages applied to the transducer. Such a control system facilitates reduction of hysteresis in controlled actuation of the actuator. | 2014-02-27 |
20140055061 | Battery Powered Control Device For Driving A Load With A Pulse Width Modulated Signal - A battery-powered load control device (e.g., a motorized window treatment) is able to supply a pulse-width modulated current to an electrical load (e.g., a motor) while conducting a substantially DC battery current from a battery powering the motorized window treatment. The motorized window treatment includes a motor drive circuit for driving the motor with a pulse-width modulated signal to adjust the rotational speed of the motor, such that the motor conducts the pulse-with modulated current. The motorized window treatment also has an input circuit coupled between the battery and the H-bridge drive circuit. The input circuit has an output for conducting the pulse-width modulated load current, and conducts the substantially DC battery current from the battery. The input circuit may comprise, for example, a passive filter circuit (such as an inductor-capacitor filter) or an active circuit (such as a power converter). | 2014-02-27 |
20140055062 | SWITCHING APPARATUS FOR TWO-PHASE SRM AND CONTROL METHOD THEREOF - Disclosed herein are a switching apparatus for a two-phase SRM and a control method thereof. The switching apparatus for a two-phase SRM includes: a rectifier rectifying commercial power; and a zero-voltage switching converter including a pair of upper and lower switches that is vertically connected to each of two phase windings in series and a pair of diodes that is cross-connected across the two phase windings to be operated in operation modes 1 to 3 for each phase winding and provide commercial power supplied from the rectifier to the two-phase SRM so as to operate the two-phase SRM. | 2014-02-27 |
20140055063 | ELECTRIC MOTOR AND MOTOR CONTROL - Various embodiments of an electric motor and electronic control for an electric motor are disclosed. An exemplary electric motor comprises a single-phase brushless permanent magnet electric motor. In exemplary embodiments, the electronic motor control is configured to commutate an electric motor at a frequency other than line frequency, perform pulse width modulation, and drive the electric motor with a drive waveform that approximates the counter-electromotive force of the motor. | 2014-02-27 |
20140055064 | Systems and Methods for Controlling Motor Speeds - Electronic circuits for controlling the speed of a motor include a receiving node coupled to receive a speed command signal representative of a desired final speed of the motor. A speed control circuit applies a selected amount of power to a motor to allow a speed of the motor to approach a predetermined final speed, where the selected amount of power provided is based on the desired final speed of the motor. A signal represents the speed of the motor and a feedback circuit uses the signal to regulate the speed of the motor by phase-locking the speed of the motor to the speed command signal once the speed of the motor falls within a predetermined threshold of the final speed. Methods for controlling the speed of a motor are also disclosed. | 2014-02-27 |
20140055065 | PMSM FIELD WEAKING FOR APPLIANCE MOTORS - An electric motor in an appliance and a method of controlling the motor to achieve speeds greater than a base speed of the motor is provided. To achieve speeds above the base speed of the motor, field weakening can be implemented by applying a field weakening angle to a phase advance angle between a desired stator flux and a rotor flux. The field weakening angle can be based on the current speed of the motor. The field weakening angle can be a fixed angle and can be determined by comparing the current speed of the motor with a predetermined threshold. In addition, the magnitude of the electrical signal applied to the motor can be adjusted during field weakening based on a desired speed of the motor where the electrical signal can be a voltage. | 2014-02-27 |
20140055066 | BRUSHLESS MOTOR CONTROL DEVICE AND BRUSHLESS MOTOR CONTROL METHOD - After a rotor of a three-phase brushless motor is previously moved by a simple control method to a predetermined rotary position, a motor is started-up. A brushless motor control device ( | 2014-02-27 |
20140055067 | MOTOR DRIVING SYSTEM - A motor driving system is disclosed having a control device | 2014-02-27 |
20140055068 | METHOD, DEVICE, AND COMPUTER PROGRAM FOR DETERMINING AN OFFSET ANGLE IN AN ELECTRIC MACHINE - The invention relates to a method and device for determining or checking the plausibility of an offset angle between an assumed orientation and an actual orientation of a rotor ( | 2014-02-27 |
20140055069 | ELECTRIC EXCITATION PERMANENT MAGNET SWITCH, ELECTRIC EXCITATION PERMANENT MAGNET SWITCH RELUCTANCE MOTOR AND ELECTRIC EXCITATION METHOD - Two magnetic poles of a permanent magnet of a permanent magnet switch and the two ends of an iron core wound with an excitation coil are connected to each other with the soft magnet having a salient pole. A motor uses the switch as the basic component of the stator and rotor, with two magnetic salient poles of each component being arranged axially, wherein the salient pole of the stator component and that of the rotor component are arranged in an opposite manner with an air gap, the excitation coil of the stator component and the rotor component at the symmetric axis position is taken as a phase line to access an excitation control power supply after serial connection or parallel connection. Electric excitation is carried out on the combined motor formed by shaft connection and rotation dislocation among single motors and the stator component in a bi-phase way simultaneously. | 2014-02-27 |
20140055070 | SHIELDING STRUCTURE FOR POWER CONVERSION SYSTEM AND METHOD THEREOF - An electromagnetic shielding structure includes a first shielding material disposed at a first location with respect to at least one radiation source and a second shielding material attached with the first shielding material by fastening means. The second shielding material is disposed at a second location with respect to the at least one electromagnetic radiation source so as to define a predetermined gap between the first shielding material and the second shielding material. The first shielding material shields at least part of first frequency electromagnetic radiations generated from the at least one electromagnetic radiation source and penetrating through the second shielding material and the predetermined gap. The second shielding material shields at least part of second frequency electromagnetic radiations generated from the at least one electromagnetic radiation source. | 2014-02-27 |
20140055071 | MOTOR DRIVING DEVICE, AND MOTOR CONTROL METHOD - There is provided a motor driving device including: a speed detection unit detecting a speed of a motor; a comparison unit comparing the speed of the motor detected by the speed detection unit with an external input speed; and a speed control unit outputting the reference speed as a control signal when the speed of the motor is equal to a reference speed or less and outputting a motor control signal generated based on a comparative value of the comparison unit when the speed of the motor exceeds the reference speed. | 2014-02-27 |
20140055072 | MOTOR CONTROL DEVICE - A motor control device includes an H-bridge circuit for controlling on/off of a current fed to a motor, a drive circuit for driving the H-bridge circuit, a drive command signal generator for generating a drive command signal including a pulse signal having a predetermined drive frequency for sending a command to drive the motor, a current detection circuit that includes a current detection resistor and a comparator connected in series with the motor and outputs a comparison output signal based on comparison between a current detection signal of a motor current and a target value signal, a latch circuit for holding a current detection result based on an ON signal of the drive command signal and the comparison output signal, and a gate circuit for driving the drive circuit based on the ON signal of the drive command signal and a latch output signal from the latch circuit. | 2014-02-27 |
20140055073 | DYNAMIC PULSE-WIDTH MODULATION MOTOR CONTROL AND MEDICAL DEVICE INCORPORATING SAME - Apparatus are provided for motor control systems and related medical devices. In one embodiment, a control system includes a motor having a rotor, a sensor to obtain a measured displacement that is influenced by rotation of the rotor, and a control module coupled to the sensor. The control module adjusts a duty cycle for a modulated voltage applied to the motor in response to a difference between an expected displacement and the measured displacement. The expected displacement is influenced by or otherwise corresponds to a commanded rotation of the rotor. | 2014-02-27 |
20140055074 | MOTOR CONTROL DEVICE - A motor control device according to an embodiment includes a first subtractor, a speed controller, and a phase compensating speed observer. The first subtractor subtracts a speed reference from a speed feedback signal to obtain a speed deviation. The speed controller receives the speed deviation and outputs a first torque reference. The phase compensating speed observer receives the first torque reference and a speed of a controlled object including a motor, and outputs the speed feedback signal. The phase compensating speed observer includes a delay element model having an integral element of an order optimally satisfying a setting condition based on a degree of easiness for implementation and a degree of usefulness for phase delay compensation of the speed feedback signal to the speed reference. | 2014-02-27 |
20140055075 | MOTOR HAVING PULSE MODE AND BRUSHLESS MODE, AND CONTROL METHOD AND APPARATUS OF THE MOTOR - A motor includes a rotor having a magnet, a stator having two coils, and a controller configured to control excitations of the two coils. The stator includes first and second yokes excited by the coils, and first and second rotor detectors configured to detect a magnetic flux. The first yoke is arranged for each electric angle of 360°, and the second yoke shifts from the first yoke by an electric angle of 90°. The first rotor position detector is arranged at the same position as the first yoke. The controller generates an excitation switching signal for each coil based on detection signals from the first and second rotor position detectors, and excites a corresponding coil, and obtains first and second delay angles. | 2014-02-27 |
20140055076 | OCCLUSION DETECTION USING PULSE-WIDTH MODULATION AND MEDICAL DEVICE INCORPORATING SAME - Apparatus are provided for motor control systems and related medical devices. In one embodiment, a control system includes a motor having a rotor, a modulation module coupled to the motor, and a control module coupled to the modulation module. The modulation module generates a modulated voltage that is applied to the motor and rotates the rotor to deliver fluid via a fluid path. The control module adjusts a duty cycle of the modulated voltage to achieve a commanded rotation of the rotor and detects an occlusion condition in the fluid path based on the duty cycle. | 2014-02-27 |
20140055077 | ELECTRIC MOTOR AND MOTOR CONTROLLER - An electric motor controller having a front face and a rear face, the front face carrying a plurality of AC output couplings and the controller carrying a converter configured to convert a received DC supply into an output AC supply for controlling an electric motor, the AC output couplings being disposed symmetrically about an axis of symmetry of the controller on the front face of the controller. Also described is an apparatus comprising: a DC series motor; and a first current supply configured to supply a first current to an armature of the DC series motor; a second current supply configured to supply a second current to a field winding of the DC series motor; and a controller configured to control the first current supply to supply the first current based on a required torque output for the motor, and to control the second current supply to supply the second current based on the first current. | 2014-02-27 |
20140055078 | WIRELESS BATTERY CHARGER FOR MOBILE DEVICES AND METHOD THEREOF - A wireless direct contact charger includes (a) a voltage supply; (b) a first plate electrode and a second plate electrode; (c) a polarity detection circuit that detects; and (d) a switching circuit. When the first electrode or the second electrode of the portable device is placed on the first plate electrode or the second plate electrode, the polarity detection circuit detects the polarity of the portable device charging terminals (i.e, whether the first electrode of the portable device is in contact with the first plate electrode, the second electrode of the portable device is in contact with the first plate electrode or any other suitable orientations). Based on the detected polarity, the switching circuit connects the first plate electrode and the second plate electrode to the voltage supply to provide an output voltage to the portable device for charging its battery, | 2014-02-27 |
20140055079 | BATTERY PACK, BATTERY APPARATUS INCLUDING THE SAME, AND CELL BALANCING METHOD THEREOF - A battery pack includes: a cell module including a plurality of battery cells; an antenna connected to each of the battery cells; and a waveguide installed at one side of the cell module and having the antenna housed therein. | 2014-02-27 |
20140055080 | CHARGING APPARATUS - A charging apparatus includes a power receiving unit that includes a rectifier, receives AC power, and converts the AC power into DC power, a power storage device that has DC power stored therein, a DC/DC converter that can execute a bidirectional power-flow control including a control of charging to the power storage device and a control of discharging from the power storage device using an output of the rectifier, and a control unit that controls operations of the power receiving unit and the DC/DC converter. In the charging apparatus, an output voltage of the rectifier is set different from an output voltage of the DC/DC converter that is applied to an output terminal of the rectifier when the power storage device is discharged. | 2014-02-27 |
20140055081 | POWER MANAGEMENT SYSTEM THAT CHANGES THE OPERATING CONDITIONS OF A BATTERY CHARGER - Some embodiments relate to a power management system. The power management system includes a generator that provides a voltage output to a bus. The bus is adapted to be connected to a load. The power management system further includes a battery charger that is adapted to charge a battery. A generator controller operates the generator and also adjusts operating conditions of the battery charger. In some embodiments, the generator includes an internal combustion engine that drives an alternator. Embodiments are contemplated where the battery charger is adapted to receive power from a primary power source. As an example, the primary power source may be utility power or some other form of generator power. | 2014-02-27 |
20140055082 | CHARGING CURRENT CALIBRATION - Exemplary embodiments are directed to systems, devices, methods, and computer-readable media for calibrating a charging current. A device may include a charger for conveying an output voltage to a chargeable device. The device may also include a monitoring system including an analog-to-digital converter for measuring a current received by the chargeable device. Further, the device may include a control device configured to receive a charging current value from the monitoring system and convey a signal to the charger in response to a comparison of the charging current value to a target current value. | 2014-02-27 |
20140055083 | CHARGING APPARATUS - A charging apparatus is used for charging a storage battery. This charging apparatus includes a body connected to a power source, a connector connected to the storage battery, an electric cable connecting between the body and the connector, a support member provided in the body, and a holding member provided in the body. The electric cable includes a held member at a predetermined position in an intermediate portion of the electric cable. The support member supports the connector. The holding member detachably holds the held member. | 2014-02-27 |
20140055084 | CHARGER - A charger in one aspect of the present invention includes: a connecting portion, two protection devices, a charging device, a control device, and a voltage detection device. A first protection device is configured such that its power consumption in a charging inhibited state is lower than that in a charging permitted state. A second protection device is configured such that its power consumption in the permitted state is lower than that in the inhibited state. The control device is configured to respectively set, when the battery is not connected to the connecting portion, the first protection device to the inhibited state and the second protection device to the permitted state, and thereafter switch, when the voltage value of the charging path detected by the voltage detection device is equal to or greater than a predetermined specified voltage value, the second protection device to the inhibited state. | 2014-02-27 |
20140055085 | THIN FILM BATTERY CHARGE CONTROL AND METHOD - A thin film battery and charging system is provided comprising a cathode material, a cathode current collector, an anode current collector, and an electrolyte layer separating the cathode material from the anode current collector configured to form a battery having at least one intercalating electrode. The system additionally comprises an integrated-circuit battery-charging and managing circuit and a user controlled input having selection capability for the user to choose from a plurality of levels of state of charge of the battery. A method of charging a thin film battery is also described. | 2014-02-27 |
20140055086 | BATTERY WITH AN INTERNAL MICROCONTROLLER THAT DRAWS DIFFERENT CURRENTS FROM THE CELLS INTERNAL TO THE BATTERY BASED ON THE TEMPERATURE OF THE BATTERY - A rechargable battery with an internal microcontroller, a memory and a temperature sensor. The microcontroller draws a current from the cells internal to the battery used to power device to which the battery is attached. Normally, the microcontroller, is in a first operating mode in which the microcontroller draws a relatively low current. During these periods the temperature sensor generates a signal representative of the temperature of the battery. When the signal from the temperature sensor indicates the battery temperature exceeds a threshold temperature, the microcontroller enters a second operating mode in which the microcontroller draws a relatively high current. While in the second operating mode the microcontroller records in the memory data regarding the fact that the battery temperature exceeded the reference temperature and the amount of time the battery was at a temperature above the reference temperature. | 2014-02-27 |
20140055087 | Methods, Systems, and Products for Charging of Devices - Methods, systems, and products charge a battery in a mobile device. A calendric pattern describes habitual usage of the mobile device. The battery may thus be charged based on the calendric pattern. | 2014-02-27 |
20140055088 | IMPLANTABLE MEDICAL DEVICE WITH BACKSCATTER SIGNAL BASED COMMUNICATION - An implantable medical device is disclosed that includes a charging coil configured to inductively couple to a first external coil to receive a charging signal to charge a charge storage element of the implantable medical device. The implantable medical device also includes a circuit coupled to the charging coil. The circuit includes a circuit component that, in response to the charging signal, generates a backscatter signal. The implantable medical device also includes a communication coil orthogonal to the charging coil and coupled to the circuit component. The communication coil is configured to inductively couple to a second external coil to communicate the backscatter signal to the second external coil. | 2014-02-27 |
20140055089 | POWER RECEPTION DEVICE, POWER TRANSMISSION DEVICE AND POWER TRANSFER SYSTEM - A power reception device comprising: a shield including a main surface portion and a circumferential wall portion connected to a circumferential edge of the main surface portion, and having an opening in a position opposite to the main surface portion; a lid portion formed to cover the opening; a mounted resonant portion arranged within the shield, and resonating, through an electromagnetic field, with a facility-side resonant portion provided in an external facility; and a holding portion connecting the lid portion and the main surface portion, and supporting the mounted resonant portion. | 2014-02-27 |
20140055090 | DEVICE FOR INDUCTIVELY CHARGING AT LEAST ONE ELECTRIC ENERGY STORE OF AN ELECTRIC VEHICLE - The invention relates to systems, devices, and components for inductively charging an electric energy store of an electric vehicle ( | 2014-02-27 |
20140055091 | CHARGER AND CHARGING METHOD - The present invention is applied to a charger that charges a rechargeable battery mounted on an electric vehicle. The charger according to the present invention includes an electric power supply unit that supplies electric power to said rechargeable battery; a payment unit that makes payment with electronic money to use said charger; and a control unit, when said control unit is instructed by said electric vehicle to start charging, that instructs said electric power supply unit to start supplying electric power to said rechargeable battery and that instructs said payment unit to make payment with said electronic money. | 2014-02-27 |
20140055092 | TRACTION BATTERY DISCHARGE CONTROL - A vehicle includes a traction battery to propel the vehicle. The traction battery includes a plurality of cells that are each selectively connected to a resistor. A controller or controllers are provided that are configured to control the charging and discharging of the cells. The controller or controllers command the battery or a selected group of cells of the battery to discharge in response to a fault or triggering condition. The discharge enables the battery or the group of cells to achieve a state of charge of approximately zero or less. | 2014-02-27 |
20140055093 | CHARGER - A charger of the present invention may include a plurality of battery connection parts to which battery packs can be connected to charge, with each battery connection part having an indicator. The indicators may be configured such that when charging is expected to be completed more quickly in a first battery connection part compared to a second battery connection part, the indicator of the first battery connection part is displayed differently from the indicator of the second battery connection part. | 2014-02-27 |
20140055094 | BATTERY SYSTEM AND CONTROL METHOD THEREOF - The first battery is configured to be charged and discharged with a larger current than the second battery. The second battery has a higher storage capacity than the first battery. When the voltage of the second battery is lower than the voltage of the first battery, the controller allows charging of the second battery through the second relay while prohibiting charging of the first battery through the first relay until the voltage of the second battery reaches the voltage of the first battery. | 2014-02-27 |
20140055095 | BATTERY PACK AND METHOD OF CONTROLLING THE SAME - A battery pack includes at least one battery cell, a microcomputer having a first voltage measuring terminal, a second voltage measuring terminal, and a reference voltage output terminal, the microcomputer being configured to control recharge and discharge of the at least one battery cell by detecting an abnormality of a reference voltage at the reference voltage output terminal in accordance with first and second voltages at respective first and second voltage measuring terminals, a voltage distribution unit connected between the reference voltage output terminal and a ground, the voltage distribution unit being configured to distribute voltage and to output to the microcomputer a medium voltage as the first voltage, and a voltage measuring unit connected between the reference voltage output terminal and the ground, the voltage measuring unit being configured to output to the microcomputer a forwarding direction voltage of a diode as the second voltage. | 2014-02-27 |
20140055096 | BATTERY PACK, BATTERY APPARATUS INCLUDING THE SAME, AND CELL BALANCING METHOD THEREOF - A battery pack includes: a cell module including a plurality of battery cells; and a coil unit installed on one side of the cell module and having coils stacked therein, the coils being connected to the respective battery cells. | 2014-02-27 |
20140055097 | ELECTRONIC DEVICE SYSTEM AND BATTERY PACK - There is provided an electronic device system including a plurality of battery packs, and an electronic device that is driven by a power source supplied from the battery packs. At least one battery pack of the plurality of battery packs outputs one or both of discharge information indicating whether the battery pack is dischargeable and charge information indicating whether the battery pack is chargeable, and the electronic device includes a control unit that performs one or both of control of discharge of the battery pack based on the discharge information and control of charge of the battery pack based on the charge information. | 2014-02-27 |
20140055098 | METHOD AND APPARATUS FOR WIRELESS CHARGING AN ELECTRONIC DEVICE - A wireless charging method for an electronic device using an electromagnetic radiation (EMR) circuit is provided. The wireless charging method includes receiving an event input through the EMR circuit, controlling an input function according to a signal received through the EMR circuit in response to an input event, and controlling a wireless charging of a target device or electronic device using energy generated through the EMR circuit in response to a charge event. | 2014-02-27 |
20140055099 | SYSTEM, METHOD, AND COMPUTER PROGRAM PRODUCT FOR REMEDYING A CHARGING ERROR - A system, method, and computer program product are provided for remedying a charging error. In use, a battery and a battery charger are identified. Additionally, an error associated with the charging of the battery by the battery charger is detected. Further, the error is remedied. | 2014-02-27 |
20140055100 | BATTERY STATE ESTIMATION SYSTEM, BATTERY CONTROL SYSTEM, BATTERY SYSTEM, AND BATTERY STATE ESTIMATION METHOD - A battery state estimation system estimates a state of charge of a chargeable battery. A SOCv computing unit calculates a state of charge of the battery using a voltage applied across the battery. A SOCi computing unit integrates a current flowing through the battery to calculate a state of charge of the battery. A SOCw computing unit which performs weighted addition to the state of charge of the battery calculated by the SOCv computing unit and the state of charge of the battery calculated by the SOCi computing unit, wherein when the temperature of the battery is a threshold value or less and the current flowing through the battery is a threshold value or less, the SOCw computing unit sets the specific gravity at the state of charge of the battery calculated by the SOCi computing unit larger than that in other cases upon the weighted addition. | 2014-02-27 |
20140055101 | CHARGING SCHEME - Mobile devices have limited power sources. In some cases, such as camera flash operations in cell phones or digital cameras, the power required to provide bright illumination is significant and exceeding the battery voltage level. In order to supply burst power or continuous high power to light sources, such as white LEDs (light emitting diodes), mobile devices typically employ charge storage functioning as energy reservoir that can supply the required power. One such charge storage is a supercapacitor that can supply the needed power repeatedly by discharging and recharging. Various embodiments of the present invention include devices and methods for providing the charge energy and controlling the charge and discharge operations. | 2014-02-27 |
20140055102 | METHODS AND SYSTEMS FOR IMPROVED ENGINE SPEED CONTROL DURING ENGINE STARTING - A system for improving engine starting is disclosed. In one example, an engine starting is improved by providing a variable load to the engine during engine starting. The variable load may be provided by controlling alternator field current during the engine start. | 2014-02-27 |
20140055103 | SYSTEM AND METHOD FOR MONITORING TEMPERATURE INSIDE ELECTRIC MACHINES - The electric machine comprises at least one winding made of a material having a temperature dependent resistance. The temperature of the winding is monitored using the resistance therein. Temperatures or resistances indicative of a fault can be sensed, and corrective action taken, without the need for dedicated temperature sensors. | 2014-02-27 |
20140055104 | Adaptive DC-link voltage controlled LC coupling hybrid active power filters for reactive power compensation - An adaptive dc-link voltage controlled LC coupling hybrid active power filter (LC-HAPF) for reactive power compensation includes: two dc capacitors to provide dc-link voltage; a three-phase voltage source inverter to convert dc-link voltage into compensating voltages; three coupling LC circuits to convert compensating voltages into currents; and an adaptive dc voltage controller with reactive power compensation control algorithm. The control algorithm includes: first, calculating required minimum dc-link voltage in each phase with respect to loading reactive power; three-phase required minimum dc-link voltage will be maximum one among their minimum values; compare it with predetermined voltage levels to determine final reference dc-link voltage. A dc-link voltage feedback P/PI controller outputs dc voltage reference compensating currents. An instantaneous power compensation controller outputs reactive reference compensating currents. The final reference compensating currents will be sum of them. A PWM circuit provides LC-HAPF adaptive dc-link voltage control and dynamic reactive power compensation. | 2014-02-27 |
20140055105 | VOLTAGE SCALING SYSTEM - A circuit for downscaling voltage comprising: a voltage regulator; a voltage reference register configured to provide a voltage reference value; a voltage comparator configured to output a logical one if a supply voltage of the voltage regulator is greater than the voltage reference value, wherein a first input of the voltage comparator is coupled to output of the voltage regulator and a second input of the voltage comparator is coupled to output of the voltage reference register; an AND gate, where a first input of the AND gate is coupled to output of the voltage comparator and a second input of the AND gate is coupled to a voltage reference ready signal; a switch configured to close based on output of logical one from the AND gate; and a pull-down resistor configured to couple to the output of the voltage regulator only if the switch is closed. | 2014-02-27 |
20140055106 | Control Circuit, Time Calculating Unit, and Operating Method for Control Circuit - A control circuit, a time calculating unit, and operating method for control circuit are disclosed. The control circuit is operated in a power converter and coupled to a load. The control circuit includes an output stage and a time calculating unit. The time calculating unit receives a control signal and a reference voltage and provides a switch conducting signal to the output stage. The generation of the control signal is related to an output voltage of the power converter. When the difference between the control signal and the reference voltage becomes larger due to the change of the load, the time calculating unit dynamically increases an on-time of the switch conducting signal. | 2014-02-27 |
20140055107 | ADAPTIVE INDUCTOR PEAK CURRENT CONTROL OF A SWITCHING REGULATOR FOR MECHANICAL NOISE REDUCTION - A current driver is coupled to an inductor; a digital control for regulation of the current driver turns the current driver on or off coupled to the current driver; a comparator output coupled to the input of the digital control for regulation of the driver with inputs to compare a voltage of the inductor to a target voltage, a digital control for selection of one of a set of peaks and valleys of allowable current levels of the current driver, the digital control for selection of one of a set of peaks and valleys coupled to the output of the comparator and an input of the current driver, the digital control for the peak/valley current to monitor the duration of each high and low output state of the comparator output to determine the selection of one of the set of peak and valley of allowable current levels for the current driver. | 2014-02-27 |
20140055108 | POWER SUPPLY DEVICE, CONTROL CIRCUIT, ELECTRONIC DEVICE AND CONTROL METHOD FOR POWER SUPPLY - A power supply device that includes a switch circuit to which an input voltage is supplied, a coil coupled between the switch circuit and an output terminal from which an output voltage is outputted. A voltage adding circuit adds a slope voltage to a reference voltage. A control unit compares a feedback voltage corresponding to the output voltage and the reference voltage and switches the switch circuit at a timing corresponding to a comparison result of the feedback voltage and the reference voltage. A slope adjustment circuit differentiates a current flowing in the coil and adjusts a slope amount of the slope based on a differentiation result of the current. | 2014-02-27 |