23rd week of 2015 patent applcation highlights part 56 |
Patent application number | Title | Published |
20150155694 | Electrical Wiring System and Method - An electrical wiring system/method implementing transient voltage suppression is disclosed. The system/method incorporates HOT, NEUTRAL, GROUND wiring in conjunction with a series drop resistor (SDR) on the HOT conductor that supplies current to the load device. Parallel shunting metal oxide varistors (MOVs) are used in conjunction with corresponding shunt diode rectifiers (SDRs) to suppress transients on the HOT conductor to either the GROUND conductor and/or NEUTRAL conductor. The parallel shunting MOV/SDR pairs may be integrated into a singular structure that is encapsulated in an insulating material to permit implementation of the transient protection wiring system/method into electrical loads and common power distribution equipment such as electrical outlets and power strips. | 2015-06-04 |
20150155695 | Electrical Wiring System and Method - An electrical wiring system/method implementing transient voltage suppression is disclosed. The system/method incorporates HOT, NEUTRAL, GROUND wiring in conjunction with a series drop resistor (SDR) on the HOT conductor that supplies current to the load device. Parallel shunting metal oxide varistors (MOVs) are used in conjunction with corresponding shunt diode rectifiers (SDRs) to suppress transients on the HOT conductor to either the GROUND conductor and/or NEUTRAL conductor. The parallel shunting MOV/SDR pairs may be integrated into a singular structure that is encapsulated in an insulating material to permit implementation of the transient protection wiring system/method into electrical loads and common power distribution equipment such as electrical outlets and power strips. | 2015-06-04 |
20150155696 | RE-ENTERABLE ENCLOSURE - An enclosure ( | 2015-06-04 |
20150155697 | ENVIRONMENTALLY SEALED CABLE BREAKOUT ASSEMBLIES - The invention is directed to a cable breakout assembly ( | 2015-06-04 |
20150155698 | ARC FAULT CIRCUIT INTERRUPTER - An arc fault detection circuit for an arc fault circuit interrupter (AFCI). The arc fault detection circuit includes an arc detecting circuit for detecting an arc fault in one or more power supply lines and outputting a detected signal, an arc filtering circuit electrically coupled to an output terminal of the arc detecting circuit for removing signal parts unrelated to the arc fault from the detected signal and outputting a filtered half-cycle signal, and an arc processing circuit electrically coupled to an output terminal of the arc filtering circuit for generating, based on the filtered half-cycle signal received, a processed half-cycle signal characterizing the arc fault. The arc fault detection circuit also includes simulated arc testing circuit that has a user-touchable test switch, and an arc oscillator to generate a simulated arc fault signal for testing the arc fault detection circuit or its respective components. | 2015-06-04 |
20150155699 | Short Circuit Protection Circuit, Semiconductor Device and Electronic Machine - The present disclosure provides a short circuit protection circuit with small area and less current-consuming. A short circuit protection circuit | 2015-06-04 |
20150155700 | METHOD AND APPARATUS FOR SHORT CIRCUIT PROTECTION OF POWER SEMICONDUCTOR SWITCH - A method and apparatus are provided for a power semiconductor switch. A current through the switch is responsive to a control terminal voltage at a control terminal of the switch, and the control terminal voltage is driven by a driver unit. The method includes measuring or estimating the current based on a bond voltage of the switch, detecting a short circuit by comparing the measured or estimated current to a short circuit current limit, controlling an on-state voltage level of the control terminal voltage based on the comparison to limit the current through the switch during the short circuit, and controlling the control terminal voltage to an off-state voltage level to turn the switch off. The on-state voltage level voltage is controlled by pulse-width modulating the output of the driver unit. A switching frequency of the modulation is at least the cut-off frequency of low-pass characteristics of the control terminal. | 2015-06-04 |
20150155701 | SYSTEM AND METHOD FOR COMPRESSOR MOTOR PROTECTION - A refrigerant compressor includes an electric motor. A current sensor measures current flow to the electric motor. A switching device is configured to close and open to allow and prevent current flow to the electric motor, respectively. A maximum continuous current (MCC) device includes a stored digital value corresponding to a maximum continuous current for the electric motor. A motor protection module: communicates with the MCC device, the current sensor, and the switching device; determines a first MCC for the electric motor as a function of the stored digital value received from the MCC device; selectively sets a predetermined MCC to the first MCC; and controls the switching device based on a comparison of the current flow to the electric motor and the predetermined MCC. | 2015-06-04 |
20150155702 | DRIVE CONTROL METHOD BASED ON DETECTED DIELECTRIC BREAKDOWN - A drive control method based on detected dielectric breakdown is provided. The drive control method includes individually determining whether dielectric breakdown of high voltage components occurs according to whether a switch for electrically connecting a high voltage battery and other high voltage components is opened and a condition of each of the high voltage components when dielectric resistance of a vehicle is measured to determine that dielectric breakdown of a high voltage system occurs. An operation of the high voltage components, the dielectric breakdown of which occurs, is stopped according to a determination result, when dielectric breakdown of high voltage components, which do not affect vehicle driving among the high voltage components, occurs. | 2015-06-04 |
20150155703 | ALTERNATOR OVERVOLTAGE PROTECTION CIRCUIT - Disclosed is an alternator overvoltage protection circuit having a TRIAC and a MOSFET. The TRIAC is electrically connected to the MOSFET and the TRIAC is electrically connected to a magneto. The TRIAC is configured to ground the magneto when triggered by the MOSFET. The MOSFET is electrically connected to an alternator and configured to conduct when the alternator operates in an overvoltage condition. Also disclosed is a method of alternator overvoltage protection for a piece of outdoor power equipment, the method including providing a TRIAC and an alternator rotated by an engine having a magneto, wherein the alternator outputs a voltage when rotated by the engine. The method further includes configuring the TRIAC to ground the magneto when the alternator operates in an overvoltage condition, thereby disabling the magneto, which stops the rotation of the engine and stops the alternator from outputting voltage. | 2015-06-04 |
20150155704 | SWITCHING CONVERTER, CONTROL CIRCUIT THEREOF, AC/DC CONVERTER, POWER ADAPTER AND ELECTRONIC DEVICE - A control circuit used in a switching converter having a coil, a switching transistor, and a detection resistor, includes: a current detection terminal configured to receive a detection voltage obtained by superimposing a voltage detection signal on a current detection signal; a sample hold circuit configured to sample-hold the detection voltage in an OFF period of the switching transistor to generate a sample hold voltage; a variable amplifier configured to amplify a difference between the sample hold voltage and the detection voltage; a duty controller configured to generate a pulse modulation signal; a driver configured to control the switching transistor based on the pulse modulation signal; and an overcurrent protection circuit configured to compare the detection voltage with a predetermined threshold voltage and change the pulse modulation signal to an OFF level of a switching transistor when the detection voltage is identical to the predetermined threshold voltage. | 2015-06-04 |
20150155705 | CIRCUIT DESIGNS FOR INDUCED TRANSIENT IMMUNITY - A circuit for protecting a voltage supply to a sensor from a transient event is provided. The circuit includes at least one buffer capacitor configured to provide output during the transient event, the output substantially equivalent to output of a regulated supply during normal operation of the sensor. A method of fabrication and a sensor are disclosed. | 2015-06-04 |
20150155706 | OVERVOLTAGE PROTECTION SYSTEM FOR WIRELESS COMMUNICATION SYSTEMS - A surge suppression system provides surge protection both locally within the radio station building were the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. An external surge suppression unit provides a waterproof enclosure for both surge suppression devices and fiber optic connectors. A rack mountable surge suppression unit provides local in-line surge suppression protection for the electrical equipment located in the communication station. A unique surge suppression tray is hot swappable so that multiple surge suppression devices can be replaced at the same time without disrupting radio operation. Pluggable surge suppression modules can be used in both the external surge suppression unit and the rack mountable surge suppression unit. | 2015-06-04 |
20150155707 | ESD PROTECTION USING SHARED RC TRIGGER - In one embodiment, an integrated circuit includes multiple I/O banks, each bank having multiple I/O-ESD tiles, each tile having one or more I/O circuits and electrostatic discharge (ESD) protection circuitry for the one or more I/O circuits in the tile. The ESD circuitry for one tile includes at least one RC-triggered clamp, whose resistance is provided by a resistor shared by one or more other RC-triggered clamps in one or more other tiles of the same bank and whose capacitance is provided by a combination of distributed capacitors, one for each of those two or more RC-triggered clamps. Each tile may have multiple instances of such RC-triggered clamps providing ESD protection for different (e.g., power supply and/or bus) nodes. The shared resistors are variable to allow different instances of the same ESD circuitry design to be implemented with the same time constant for different banks having different numbers of tiles. | 2015-06-04 |
20150155708 | Converter System for Series Connected AC Sources - A converter system for coupling to an ac power source includes a rectifier and a bi-directional converter. The rectifier has a first set of terminals inductively coupled to an ac power source and a second set of terminals coupled in series with a series dc bus, and is operable to convert ac power at the first set of terminals to dc power at the second set of terminals. The bi-directional converter has a first set of terminals coupled to the ac power source and a second set of terminals coupled to a parallel bus, and is operable to transfer power from the ac source to the parallel bus in a first operating mode and transfer power from the parallel bus to the series dc bus via the rectifier in a second operating mode. A corresponding power generation network and power transmission method are also provided. | 2015-06-04 |
20150155709 | Avoiding an overload for transmission links within a power supply system - A method and a regulating unit for avoiding overloads for link sections within a power supply system use requirements for loads to determine which link sections can be enabled for loads. | 2015-06-04 |
20150155710 | POWER NETWORK SYSTEM, CONTROL METHOD FOR POWER NETWORK SYSTEM, AND CONTROL PROGRAM FOR POWER NETWORK SYSTEM - When some failure occurs in the case where power interchange is performed among grids, an alternate route is searched at high speed in consideration of a deficiency/excess amount of power. A power network system has a plurality of power routers ( | 2015-06-04 |
20150155711 | AC POWER SUPPLY SOURCE SWITCHING APPARATUS - A mechanical switch and a semiconductor switch are connected between a load and a power supply system. A mechanical switch and a semiconductor switch are connected between the load and a secondary battery side. A control part turns on the mechanical switch, turns off the semiconductor switch, turns on the semiconductor switch and turns off the mechanical switch sequentially. In addition or alternatively, the control part turns on the mechanical switch, turns off the semiconductor switch, turns on the semiconductor switch and turns off the mechanical switch. | 2015-06-04 |
20150155712 | MULTI-LEVEL MEDIUM VOLTAGE DATA CENTER STATIC SYNCHRONOUS COMPENSATOR (DCSTATCOM) FOR ACTIVE AND REACTIVE POWER CONTROL OF DATA CENTERS CONNECTED WITH GRID ENERGY STORAGE AND SMART GREEN DISTRIBUTED ENERGY SOURCES - Systems and methods for supplying power (both active and reactive) at a medium voltage from a DCSTATCOM to an IT load without using a transformer are disclosed. The DCSTATCOM includes an energy storage device, a two-stage DC-DC converter, and a multi-level inverter, each of which are electrically coupled to a common negative bus. The DC-DC converter may include two stages in a bidirectional configuration. One stage of the DC-DC converter uses a flying capacitor topology. The voltages across the capacitors of the flying capacitor topology are balanced and switching losses are minimized by fixed duty cycle operation. The DC-DC converter generates a high DC voltage from a low or high voltage energy storage device such as batteries and/or ultra-capacitors. The multi-level, neutral point, diode-clamped inverter converts the high DC voltage into a medium AC voltage using a space vector pulse width modulation (SVPWM) technique. | 2015-06-04 |
20150155713 | System and Methods for Actively Managing Electric Power Over an Electric Power Grid and Providing Revenue Grade Data Usable for Settlement - Systems and methods for managing power on an electric power grid including a server for communicating IP-based messages over a network with distributed power consuming devices and/or power supplying devices, the IP-based messages including information relating to activities by the power consuming devices and/or the power supplying devices; and wherein the information is transformed by the system into settlement grade data corresponding to the activities of the power consuming devices and/or the power supplying devices. | 2015-06-04 |
20150155714 | Power Management In an Energy Distribution System - An arrangement for power management in an energy distribution system, a method for power management in an energy distribution system and an arrangement for implementing the method for power management in the energy distribution system, wherein a feed/return unit and a control unit are provided, where the control unit is configured to sense a present actual system state and to take the sensed actual system state as a basis for prompting energy output or energy intake (energy out/intake, energy feed/return) by the feed/return unit in order to allow continuous correction and dynamic support of an energy distribution system or in an energy distribution system. | 2015-06-04 |
20150155715 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, CONTROL METHOD OF INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND INFORMATION PROCESSING PROGRAM - An information processing system includes a controller that controls the supply route of electric power in a house, a determining unit that determines, based on the driving schedule of an electric vehicle, necessary energy with which the car battery of the electric vehicle should be charged, and a detector that detects first charge energy with which the car battery is charged. The controller selects, based on the necessary energy and the first charge energy, which one of electric power supplied from a power company and electric power supplied from the car battery is to be consumed in the house. | 2015-06-04 |
20150155716 | Power Electronic Interface for Connecting Two AC Systems - An electric power transmission system and method that provides a power electronic interface system for connecting a plurality of alternating current transmission lines by one or more direct current transmission lines. The system includes dc-link converters, frequency transformers connected to the converters, and multilevel converters are connected to a direct current transmission line. | 2015-06-04 |
20150155717 | Providing Electricity to Essential Equipment During an Emergency - An approach is provided in which an emergency electrical distribution system detects an environmental alert invoked by an environmental sensor located in a particular location of building structure. The emergency electrical distribution system selects specific electrical source connections in proximity to the environmental sensor and, in turn, terminates electrical power to selected specific electrical source connections. | 2015-06-04 |
20150155718 | WIRELESS POWER TRANSMITTER, WIRELESS POWER RECEIVER, WIRELESS POWER TRANSMISSION METHOD AND WIRELESS POWER RECEPTION METHOD - A wireless power reception method of a wireless power receiver for receiving power from a wireless power transmitter is disclosed. The wireless power receives a connection signal for identifying the wireless power receiver from the wireless power transmitter; transmitting a response signal in response to the connection signal to the wireless power transmitter; negotiating a power transmission condition with the wireless power transmitter; and receiving the power using resonance frequency band according to the negotiated power transmission condition. Furthermore, frequency band for exchanging information used for the power reception is different from the resonance frequency band. In addition, the negotiating of the power transmission condition comprises: receiving first state information of the wireless power transmitter from the identified wireless power transmitter, and transmitting second state information to the wireless power transmitter, the second state information being determined from the wireless power receiver based on the first state information of the wireless power transmitter. | 2015-06-04 |
20150155719 | Method and System for Rapid Charging of Rechargeable Cells | 2015-06-04 |
20150155720 | CHARGE-DISCHARGE CONTROLLER, SYSTEM AND METHOD - A charge-discharge system includes a consolidation ECU and a plurality of storage batteries having equal rated capacities for charging electric power from a power grid and for discharging electric power stored therein. The consolidation ECU is configured to perform a charge operation or a discharge operation exclusively on only one of the plurality of storage batteries at a time, according to a priority order of each of the plurality of storage batteries, without performing a charge operation or a discharge operation on more than one of the plurality of storage batteries simultaneously. In such manner, in a system having a plurality of storage batteries having equal rated capacities, drastic fluctuation of charge/discharge electric power is prevented. | 2015-06-04 |
20150155721 | Rechargeable Battery Systems and Rechargeable Battery System Operational Methods - Rechargeable battery systems and rechargeable battery system operational methods are described. According to one aspect, a rechargeable battery system includes a plurality of rechargeable battery cells coupled between a plurality of terminals and charge shuttling circuitry configured to couple with and shuttle electrical energy between individual ones of the rechargeable battery cells, and wherein the charge shuttling circuitry is configured to receive the electrical energy from one of the rechargeable battery cells at a first voltage and to provide the electrical energy to another of the rechargeable battery cells at a second voltage greater than the first voltage. | 2015-06-04 |
20150155722 | BATTERY MONITORING AND CONTROL INTEGRATED CIRCUIT AND BATTERY SYSTEM - A battery monitoring and control integrated circuit is connected to a cell group having a plurality of series-connected single cells for monitoring and controlling the single cells, and includes: a first start input terminal for connecting to a DC signal generation circuit which generates a DC signal based on an AC start signal input from the outside; a start detection unit which detects the DC signal and activates the battery monitoring and control integrated circuit; and a start output unit which outputs the AC start signal to the outside after the activation of the battery monitoring and control integrated circuit. | 2015-06-04 |
20150155723 | MULTI-FUNCTIONED SMART SWITCHING CHARGER WITH TIME STAGE CONTROL - A multi-functioned smart switching charger with time stage control is disclosed. The switching charger includes: a charging device, several output units, a switch control unit and a charging control unit. The charging device outputs direct current only to one output unit per charging until the rechargeable battery under charging is fully charged. The present invention provides a switching charger which utilizes only a charging device to charge connected rechargeable batteries sequentially. It saves material cost and space used. Meanwhile, charging time can be set up to off-peak hours. Power cost for charging can be saved. | 2015-06-04 |
20150155724 | PORTABLE CHARGER - The portable charger including an air outlet duct arranged at an upper end of the heat sink inside a ceiling of an housing of the portable charger, to capture and channel an heated air inside the portable charger, a heat sink on the housing at back panel and including fins matching with the air outlet duct to receive heated air, an air intake grill in the housing facing downward when the portable charger is placed in a upright position and to receive an air from an outside of the portable charger, an air intake duct coupled to the air intake grill to channel the air to an inside of the portable charger, an intake fan coupled to the air intake duct to receive the air, an air outlet at the upper end of the heat sink and at opposite end to the intake fan may be provided. | 2015-06-04 |
20150155725 | COMPUTER MOUSE HAVING POWER GENERATION FUNCTION UTILIZING TEMPERATURE DIFFERENCE - The present disclosure provides a computer mouse. The computer mouse includes a housing, a battery arranged in the housing, a processor, a power generation unit, and a power control circuit. The power generation unit is affixed on the inner surface of the housing, and is used for utilizing the temperature difference to generate electricity. The power control circuit connects the power generation unit and the battery, and is configured for receiving the generated electricity and converting the voltage to a proper voltage for charging the battery. | 2015-06-04 |
20150155726 | MOBILE POWER PACK - A power button structure for a mobile power pack is disclosed, wherein the mobile power pack has a housing having a front end defining two output ports, an input port and a power button accommodating portion. The power button accommodating portion includes a receiving room, a hollow protrusion in the receiving room, and a recess below the receiving room. A power button has a shelled pressing portion and a U-shaped holding portion extending downwardly from the pressing portion. The pressing portion is attached to the hollow protrusion and when the pressing portion is pressed a contact switch which is located in front of the hollow protrusion is activated. The holding portion extends downwardly inside of the recess and is located between a front side wall and a rear side wall of the housing defining the recess. | 2015-06-04 |
20150155727 | MONITORING ELECTROLYTE CONCENTRATIONS IN REDOX FLOW BATTERY SYSTEMS - Methods, systems and structures for monitoring, managing electrolyte concentrations in redox flow batteries are provided by introducing a first quantity of a liquid electrolyte into a first chamber of a test cell and introducing a second quantity of the liquid electrolyte into a second chamber of the test cell. The method further provides for measuring a voltage of the test cell, measuring an elapsed time from the test cell reaching a first voltage until the test cell reaches a second voltage; and determining a degree of imbalance of the liquid electrolyte based on the elapsed time. | 2015-06-04 |
20150155728 | APPARATUS AND SYSTEM FOR A MULTI-MODAL FLASHLIGHT AND CHARGING BASE - Provided herein is an improved apparatus and system for providing a flashlight and charging base system. The flashlight of may include a light source, a power source having a charge level, a housing defining a major axis along which the housing extends, an adjustable ring disposed about the housing, where the adjustable ring is configured to be rotated between at least two positions, where each of the at least two positions define a different mode of operation, and a switch located proximate the barrel, where the switch is configured to turn the flashlight on and off. The adjustable ring may include a magnet, where the housing includes a Hall effect sensor, where the at least two positions of the adjustable ring are recognized by the position of the magnet relative to the Hall effect sensor. | 2015-06-04 |
20150155729 | DATA CABLE FOR FAST CHARGING - A data cable for fast charging comprises: a cable for transmitting data and charging; a first connection unit which is disposed on one of the two ends of the cable so as to be connected to a power source; a second connection unit which is disposed on the other end of the cable so as to be connected to a mobile terminal; and a mode switching circuit which enables mode switching between a data transmission mode and a fast charging mode, wherein the mode switching circuit comprises: a terminal switching logic which applies an input voltage of the first connection unit; divided resistances; a switch for mode switching between the data transmission mode and the fast charging mode; and an analog switching logic which responds to the switch for mode switching. | 2015-06-04 |
20150155730 | DECORATIVE AND WEARABLE POWER CHARGER WITH FLASHLIGHT FEATURE - A portable power charger having an internal rechargeable battery includes a charger housing having at least one power connection port and a flashlight feature having at least one light source. The power connection port is operatively connected to the rechargeable battery and used for connecting the charger with an external power source, an electronic device, or both. The flashlight feature is also operatively connected to the internal battery. The charger housing takes the form of a fashion accessory that can be worn by the user, making the power charger readily available and accessible when needed to charge an electronic device when a standard power source is not available. The charger housing can be opened or folded to expose the power connection port for use, and closed or unfolded to hide the power connection port so as not to detract from the charger's use as a fashion accessory. | 2015-06-04 |
20150155731 | LITHIUM ION BATTERY AND CHARGER THEREOF - A lithium ion battery and a charger thereof are provided. The lithium ion battery comprises a shell ( | 2015-06-04 |
20150155732 | PRE-CHARGING SYSTEM FOR A CAPACITOR IN A VOLTAGE INVERTER FOR AN ELECTRIC MOTOR - A pre-charging system for a capacitor in a voltage inverter for an electric motor is provided. The system includes a grounding contactor electrically coupled between a grounding terminal of a battery pack and a first end of the capacitor. The system further includes a pre-charging contactor and a resistor electrically coupled in series. The pre-charging contactor and the resistor are electrically coupled between a high voltage terminal of the battery pack and a second end of the capacitor. The microprocessor determines a total amount of energy supplied to the resistor and induces the pre-charging contactor to have an open operational position to electrically de-couple the high voltage terminal from the second end of the capacitor, if the total amount of energy is greater than a threshold amount of energy. | 2015-06-04 |
20150155733 | BATTERY CHARGER AND METHOD UTILIZING ALTERNATING DC CHARGING CURRENT - A battery charger is disclosed for use with various batteries, such as automotive- and marine-type batteries. In accordance with an aspect of the invention, the charging current is alternated between non-zero DC charging current levels. By alternating the charging current between non-zero DC charging levels, the battery can be charged to a higher capacity (i.e., ampere hours) faster, thus reducing the charging time and at the same time allow the rating of the battery charger to be increased. In accordance with another important aspect of the invention, the technique for alternating the charging current can be implemented in both linear- and switched-mode battery chargers. | 2015-06-04 |
20150155734 | Method and Circuitry to Determine the Relaxation Time of a Battery/Cell - The present inventions, in one aspect, are directed to techniques and/or circuitry to adaptively charge a battery/cell using data which is representative of a change in terminal voltage of the battery/cell. In another aspect, the present inventions are directed to techniques and/or circuitry to adaptively charge a battery/cell using data which is representative of partial and/or full relaxation time of the battery/cell. In yet another aspect the present inventions are directed to techniques and/or circuitry to determine whether the data which is representative of partial and/or full relaxation time exceeds a predetermined range and/or is greater than a predetermined value. | 2015-06-04 |
20150155735 | BATTERY DEVICE AND BATTERY CONTROL DEVICE - A battery device includes: a secondary battery; a charger; a first transistor configured to control conduction between the secondary battery and a load; a second transistor configured to control conduction between the charger and the secondary battery; diodes of which cathodes are connected to each other and that are connected between the secondary battery and the charger; a capacitor configured to accumulate charge to be transferred to the gate of the first transistor; a capacitor configured to accumulate charge to be transferred to the gate of the second transistor; and a battery control device configured to control charging/discharging of the secondary battery. | 2015-06-04 |
20150155736 | Method and Apparatus for Extending Service Life of a Battery Source - A method and an apparatus are disclosed for extending the service life of a battery source by fully utilizing the energy in batteries and/or providing higher energy reserve using multiple batteries. The invention has economical and environmental benefits by reducing waste in batteries in addition to offering convenience and ease of maintenance in battery use. It also benefits the design of devices when replacing batteries is either difficult or impossible. A universal battery bank consists of an ensemble of possibly heterogeneous batteries all connected in series to provide a usable operational energy source. To exploit this power supply that may vary over a wide voltage range, electronics are designed to monitor the individual batteries, guard against excessive voltage and current, and provide constant current sources and/or constant voltage sources for various appliances. | 2015-06-04 |
20150155737 | WIRELESS POWER ORTHOGONAL POLARIZATION ANTENNA ARRAY - Systems and methods for wireless power transmission are described herein. In one aspect, an apparatus for wireless power transmission comprises a first antenna array of antenna coils configured to generate a first wireless field. A second antenna array of antenna coils generates a second wireless field. The first antenna array at least partially overlaps the second antenna array. A driver circuit generates first and second drive signals for generation of the first and second wireless fields via the first and second antenna arrays, respectively. The first wireless field is orthogonal with respect to the second wireless field. The first antenna array and the driver circuit power the antenna coils of the first antenna array with alternating polarities. The second antenna array and the driver circuit power the antenna coils of the second antenna array with alternating polarities. | 2015-06-04 |
20150155738 | WIRELESS POWER DISTRIBUTION SYSTEM FOR LAW ENFORCEMENT EQUIPMENT - A wireless power distribution system for Law Enforcement equipment is disclosed. The system includes a wireless power transmitter coupled with a power source. The transmitter may form pockets of energy using controlled radio frequencies. Electrical equipment coupled with an electronic receiver may utilize pockets of energy formed by the transmitter to charge or power the electrical equipment. The transmitter coupled with a power source may be carried in a vehicle for portability. | 2015-06-04 |
20150155739 | WIRELESS POWER SYSTEM - A wireless power system can include wireless power receive circuitry for generating power from a wireless signal, and a wireless power transceiver for communicating with a wireless power transmission unit. The wireless power system can transition from an idle state to different power management states depending on whether or not communication has been established with the wireless power transmission unit. Different modules can be activated, different supply voltages, and different clock signal rates can be used in different power management states. | 2015-06-04 |
20150155740 | APPARATUS AND METHOD FOR NON-CONTACT RECHARGING AND NEAR FIELD COMMUNICATION IN A PORTABLE ELECTRONIC DEVICE - Apparatus and methods in a near field communication capable electronic device are disclosed. An antenna receives a near field signal from a recharging pad or a reader to provide a reception signal. A detector coupled to the antenna receives the reception signal and detects therefrom a voltage, current or power value representing a power level of the near field signal. A switch is coupled to the detector, and switches the reception signal corresponding to the recharging pad or the reader to a recharging transceiver to recharge a battery, or to a near field communication transceiver, respectively, on the basis of the detected voltage. A Hall-effect type magnetic sensor may be used as an alternative to the detector. | 2015-06-04 |
20150155741 | Device for Improving Endurance of Terminal and Terminal Thereof - An apparatus for improving endurance capability of a terminal and a terminal thereof are provided. The apparatus includes: a heat collection module ( | 2015-06-04 |
20150155742 | BATTERY STORAGE RACK - The invention includes a storage rack for storing an array of battery cells in an uninterrupted power source that meets the seismic testing requirements of NEBS GR-63-CORE (Issue 2 Apr. 2002). Embodiments of the present invention include locking tabs on front and rear horizontal rails positioned between each horizontal shelf member and spaced as needed between battery cells as desired. Further embodiments of the present invention include ventilation holes formed in the horizontal shelf member and aligned with the locking tabs to provide ventilation between the battery cells. Further embodiments of the present invention further include battery guides formed in the horizontal shelf member and aligned with the locking tabs to guide the battery cells on the horizontal shelf member and ease installation of the battery cells. | 2015-06-04 |
20150155743 | FLUORESCENT LED LIGHTING DEVICE AND LIGHTING ON/OFF MODE SWITCHING METHOD THEREFOR - In order to add an emergency light function to a fluorescent LED lighting device, thereby increasing safety during a power outage, this LED lighting device, which can be mounted between a pair of sockets for fluorescent lighting, is equipped with a first power supply circuit, which lights the LED using direct current power obtained by converting/rectifying alternating current power supplied from the sockets, and a second power supply circuit, which lights the LED using an embedded battery. An embedded SW controller detects that a sudden drop in the current value or the voltage value in the lighting device, from a prescribed value Von when the lighting switch is turned on to a value that is essentially zero, occurs within a prescribed time T. When the sudden drop occurs two or more times in the prescribed time (FIG. | 2015-06-04 |
20150155744 | DISCHARGE CIRCUIT, INFORMATION PROCESSING APPARATUS, DISCHARGE METHOD, AND STORAGE MEDIUM - A discharge circuit for a decoupling capacitor to stabilize a voltage supplied from a first power supply unit to a first load includes a first capacitor, a first switch, and a discharge control circuit. The first capacitor is charged by power supplied from a second power supply unit that supplies power to a second load that is different from the first load. The first switch is arranged between the decoupling capacitor and ground. The discharge control circuit discharges, in a case where power supplied from the second power supply unit to the second load is cut off, charges of the decoupling capacitor to the ground by driving the first switch using charges stored in the first capacitor. | 2015-06-04 |
20150155745 | METHOD AND DEVICE FOR MANAGING AN ENERGY GENERATION UNIT - Device for an energy generation unit of a user's installation, which is connected to an energy supply network and to at least one energy consumption unit of the user's installation and comprises a programmable logic control which controls an internal energy consumption, by the energy consumption units of the user's installation, of the energy generated by the energy generation unit. | 2015-06-04 |
20150155746 | COMMUNICATION APPARATUS, CONTROL METHOD OF COMMUNICATION APPARATUS, AND PROGRAM - A communication apparatus includes an electric power reception unit that receives electric power wirelessly supplied from another apparatus, a notification unit that provides notification of capability information of the communication apparatus by wireless communication, and a control unit that controls the notification unit to switch from providing notification of a first capability information not including information indicating capability to receive electric power wirelessly supplied, to providing notification of an information capability information including information indicating capability to receive electric power wirelessly supplied, in accordance with reception of electric power by the electric power reception unit. | 2015-06-04 |
20150155747 | MOTOR AND WASHING MACHINE HAVING THE SAME - A washing machine includes a motor configured to rotate a drum, and the motor includes a stator having stator cores and coils wound around the stator cores, and a rotor configured to rotate in electromagnetic interaction with the stator. The rotor includes a plurality of rotor cores arranged spaced apart from each other in a circumferential direction of the rotor, a plurality of rotor slots formed between the plurality of rotor cores, a plurality of permanent magnets inserted into the plurality of rotor slots, and a plurality of connection members disposed outside the permanent magnets in a radial direction of the rotor and configured to connect between the plurality of rotor cores. | 2015-06-04 |
20150155748 | ROTOR FOR MODULATED POLE MACHINE - A rotor for a modulated pole machine, the modulated pole machine including a stator, the rotor, and an active gap between respective interface surfaces of the rotor and the stator for communicating magnetic flux between the stator and the rotor, the rotor being adapted to rotate relative to the stator around an axis of the rotor, and the rotor including a plurality of permanent magnets separated from each other in the circumferential direction by pole pieces; wherein each pole piece includes an interface surface facing the active air gap, wherein the interface surface of one or more of the pole pieces includes different portions having a different radial distance from the axis. | 2015-06-04 |
20150155749 | METHOD OF MANUFACTURING A LAMINATED WINDING AND A LAMINATED WINDING - A method of producing a laminated winding with radial slots for electrical machines includes cutting cuts in a strip where the cuts form the radial slots of the laminated winding, and winding the strip to form the laminated winding. A laminated winding for an electrical machine produced according to the method is also provided. | 2015-06-04 |
20150155750 | STATOR AND MANUFACTURING METHOD OF STATOR - A three phase stator configured with phases that are U-phase, V-phase, and W-phase. The stator is configured such that a bus bar portion includes a joint that is formed at an end and is joined to a terminal portion of a different one of the coils. A connecting portion is formed between the joint portion and the winding portion. In the coils, a first coil and a second coil serve as the two coils joined to each other by the joint portion of the bus bar portion of the first coil and the terminal portion of the second coil, and ends of the terminal portions of middle coils are the coils disposed between the first coil and the second coil are located at a height closer to the stator core than the connecting portion of the first coil in a direction of a central axis of the stator core. | 2015-06-04 |
20150155751 | ROTATING MACHINE WITH IMPROVED COOLING - The present invention relates to a rotor for a rotating machine and more in particular, to a component of the rotor. The present invention generally relates to an improved cooling configuration of a rotating machine. Unlike generally known arrangements, the solution proposed herein does not guide coolant fluid to parts which require cooling. Instead, the heat generated from the losses in the rotor pole is transferred to parts having favourable characteristics for establishing heat exchange. | 2015-06-04 |
20150155752 | STATOR FOR AN ELECTRIC MOTOR - A stator for an electric motor includes a plurality of pole pieces and a plurality of electrical windings associated with the pole pieces. Each winding includes a cable having an electrically conductive element. A lossy insulative material is located between the electrical windings and the associated pole pieces. | 2015-06-04 |
20150155753 | ROTOR FOR ROTATING ELECTRICAL DEVICE - A rotor for a rotating electrical device includes: a rotor coil that is wound on each of the rotor salient poles; a retaining member that is supported by a rotor core; and an outer magnetic member. The retaining member has a beam bridged between the adjacent rotor salient poles and prevents the rotor coil from falling out. The outer magnetic member is provided in an end of the beam. | 2015-06-04 |
20150155754 | ROTARY ELECTRIC MACHINE - A spacer in a rotary electric machine according to the present invention complements by thermal expansion a gap between a bearing housing portion and an outer ring of an outboard bearing that arises due to differences in thermal expansion between the bearing housing portion and the outer ring of the outboard bearing that result from heat generated during driving, and a flat portion is disposed on an inner circumference of the spacer at at least one position around a circumference, the flat portion being formed so that press an outer circumferential surface of the outer ring of the bearing constantly. | 2015-06-04 |
20150155755 | MOTOR - Recesses and projections that extend in an axial direction are formed on an outer-circumferential surface of a molded resin body. The recesses are provided on portions where are extended outward from the winding and are on the outer circumferential surface. In addition, further recesses and projections that extend in a radial direction are formed on an axial-direction end surface of the molded resin body. The further recesses are provided on portions of the axial-direction end surface that are aligned in the axial direction with the winding. | 2015-06-04 |
20150155756 | MOTOR AND MOTOR VIBRATION-PROOF MECHANISM THEREOF - A motor includes an outer frame, a vibration-proof base, and a motor body. The outer frame includes a supporting base. The vibration-proof base is disposed at the supporting base of the outer frame and includes a base body and a vibration-proof ring. The base body includes an upper surface and a side surface. The vibration-proof ring is sleeved around the side surface of the base body. The vibration-proof ring is in contact with the supporting base. The motor body is disposed on the base body. The disclosure can greatly reduce vibration generated in the operation of the motor and reduce noises. | 2015-06-04 |
20150155757 | RESISTANCE GENERATION APPARATUS - A resistance generation apparatus includes a power receiving portion, a transmission portion transmitting rotational motion of the power receiving portion to a rotational body, a fixing member, the transmission portion including a pivot member being pivotable between a contact position at which the pivot member is in contact with the fixing member and a non-contact position at which the pivot member is separated from the fixing member, the transmission portion including a holding portion, the holding portion holding the pivot member at the contact position to generate resistance relative to rotational motion of the rotational body, the holding portion holding the pivot member at the non-contact position to release the resistance in a case where the power receiving portion is rotated by the power. | 2015-06-04 |
20150155758 | Apparatus, Method and System For Dual Speed Generation - The present invention relates to an apparatus, method and system for dual speed power transfer, wherein the prime mover power generating device would run at 1200 Revolutions/Minute [RPM] with the connected driven load electrical generator running at 1800 RPM; or, an apparatus, method and system for dual speed power transfer, wherein the prime mover power generating device would run at 1800 Revolutions/Minute [RPM] with the connected driven load electrical generator running at 1800 RPM. Also to note 50 hz. Operations (1500 rpm—Generator) and reduced speed (1200 rpm or less), or other speed as could be chosen and designed. | 2015-06-04 |
20150155759 | DRIVER DEVICE - In a driver device, a controller substrate has a center part on which a rotation angle sensor is attached and an outer periphery portion which is fixed onto a heat sink. The heat sink has a cylinder part extending in an axial direction of the rotation shaft to contact the outer periphery portion of the controller substrate. The cylinder part of the heat sink is continuously formed along an entire periphery and has the same height at all portions. Such configuration provides an even deformation distribution of the cylinder part due to a temperature change, thereby reducing unevenness of heat stress distribution along a substrate plane and decreasing stress applied to the sensor, which facilitates a reduction of a detection error of the sensor. | 2015-06-04 |
20150155760 | ROTARY ELECTRIC MACHINE, ROTARY ELECTRIC MACHINE STATOR, AND ROTARY ELECTRIC MACHINE STATOR MANUFACTURING METHOD - An insulator includes: a trunk portion that is interposed between a tooth and a stator coil; and a first flange portion that is disposed on the trunk portion so as to be adjacent to the stator coil in a radial direction of a stator core. A notch portion is disposed on a flange protruding portion of the first flange portion that protrudes from the stator core in the axial direction of the stator core from an outer circumferential portion of the flange protruding portion toward the trunk portion. A holder that has a holder main body that is disposed on the notch portion is mounted onto the flange protruding portion. A temperature sensor is held between the holder main body and the stator coil. | 2015-06-04 |
20150155761 | Electronically Commutated Electromagnetic Apparatus - The electronically commutated electromagnetic apparatus (ECA) of the present invention is a direct current (DC) rotating electro-magnetic machine that converts electrical energy into mechanical energy when operating as a motor and mechanical into electrically energy as a generator. The ECA has a slot to slot commutation combined with a unique prime numbered concentric winding layout which mitigates alternating current (AC) losses at extremely high speeds and torque ripple at extremely low speeds. Applications include compact low cost, high speed centrifugal compressors and very low speed direct drive wind turbines. | 2015-06-04 |
20150155762 | SEMICONDUCTOR MODULE AND DRIVER DEVICE - A semiconductor module includes a switching element, a molded body, and a motor terminal. The molded body having the switching element disposed therein. The motor terminal has a base portion and a connection portion having an insertion hole into which a motor wire is inserted and connected with the winding wire. The connection portion has a cutaway region that defines a slot. The winding wire of the motor and the semiconductor module are connected via the motor wire and the motor terminal, thereby reducing the number of components used for such connection compared with a connection that uses a connector, and achieving a volume reduction of the semiconductor module and a driver device using the same. | 2015-06-04 |
20150155763 | DRIVER DEVICE - A driver device has a semiconductor module in which a motor terminal extends from a molded body and is connected to a motor wire. A heat sink of the driver device has a module mounting surface, which extends axially outward from an axial end of the motor section, on which the semiconductor module is fastened. The motor terminal includes a base region on a molded body side of a bend location and an extension region on a tip side of the bend location. The extension region has a connection portion on which an insertion hole receives the motor wire. A terminal angle between the extension region and a perpendicular line perpendicular to the motor wire is greater than zero degree. As such, the volume of the driver device is reduced. | 2015-06-04 |
20150155764 | ELECTRICAL DRIVING DEVICE - A first power control system has a first to a third motor wires and a second power control system has a fourth to a sixth motor wires. The first to the third motor wires and the fourth to the sixth motor wires are located on a concentric circle of a center of a magnet and located to be symmetrical to each other with respect to the magnet. The first and the third motor wires, which are located at both sides of the second motor wire in a circumferential direction of an electric motor portion, are asymmetrically arranged with respect to the second motor wire. The fourth and the sixth motor wires, which are located at both sides of the fifth motor wire in the circumferential direction, are asymmetrically arranged with respect to the fifth motor wire. As a result, a size of an electrical driving device can be made smaller. | 2015-06-04 |
20150155765 | METHOD AND APPARATUS FOR CONNECTING AN ULTRACOMPACT, HIGH-PERFORMANCE MOTOR CONTROLLER TO AN ULTRACOMPACT, HIGH-PERFORMANCE BRUSHLESS DC MOTOR - Apparatus for connecting a motor controller to an electrical motor, said apparatus comprising:
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20150155766 | High Slip Variable Frequency Induction Motors - A high slip variable frequency induction motor has a rotor including an elongate stacked lamination core having a length and diameter, a plurality of electrically conducting rotor bars extending through said core, each having a first end and a second end, and electrically conducting first and second end rings electrically connected to the first and second ends respectively of said rotor bars. An insulating material is disposed between said rotor bars and said core thereby to at least prevent parasitic current flow between the rotor bars and said core. | 2015-06-04 |
20150155767 | Vibration Actuator - A vibration actuator includes: a movable element that has a magnet and moves reciprocatingly in a rectilinear manner; first and second coil sections arranged so as to surround the magnet; a housing for accommodating the movable element and the first and second coil sections; and a weight attached to the housing. | 2015-06-04 |
20150155768 | ELECTROMAGNETIC DRIVING MODULE AND LENS DEVICE USING THE SAME - The disclosure discloses an electromagnetic driving module which includes a base, two magnetic elements, a wiring assembly, a reference element, and a sensor element. The two magnetic elements are arranged along a reference line and positioned at two sides of the base. The wiring assembly is connected to the base and arranged adjacent to the two magnetic elements. The reference element is positioned on the base. The sensor element is adjacent to the reference elements and configured to detect the movement of the reference element to position the base. A lens device using the electromagnetic driving module is also disclosed. | 2015-06-04 |
20150155769 | METHOD OF DI/DT CURRENT SENSING - An integrated circuit package includes a power circuit having a plurality of transistors which form part of a main current loop of the power circuit, the plurality of transistors arranged in one or more layers of the integrated circuit package. The integrated circuit package further includes a conductive loop electrically decoupled from the plurality of transistors. The conductive loop is spaced apart from the plurality of transistors and in close enough proximity to at least part of the main current loop so that the conductive loop is operable to generate a voltage proportional to an electromagnetic field generated responsive to a change in current in the main current loop. A method of fabricating the integrated circuit package is also provided. | 2015-06-04 |
20150155770 | FIVE-LEVEL RECTIFIER - Disclosed herein is a five-level rectifier that includes first, second, third, fourth power semiconductor switches, first and second DC bus capacitors, a phase capacitor, and first, second, third and fourth diode modules. The first, second, third and fourth diode modules are connected in series, the first and second DC bus capacitors are connected in series, and the second and third power semiconductor switches are connected in series. The first diode module is connected to the first DC bus capacitor and the first power semiconductor switch, and the fourth diode module is connected to the second DC bus capacitor and the fourth power semiconductor switch. The phase capacitor has a terminal connected to the first and second power semiconductor switches, and another terminal connected to the third and fourth power semiconductor switches. | 2015-06-04 |
20150155771 | SYSTEM, APPARATUS, AND METHOD FOR A PING-PONG CHARGE PUMP - Systems, apparatuses, and methods provided for ping-pong charge pumps. Flying capacitors present in ping-pong charge pumps are operated out of phase to increase equalization periods. Out-of-phase operation also decreases voltage differences between flying capacitors during equalization periods thus decreasing ping-pong charge pump output voltage ripple and snapback. The voltages of the flying capacitors may be equalized without the use of an equalization switch. Differential control currents that are based on the voltage difference between the flying capacitors are used to enable or disable the flying capacitors from driving an output load of the ping-pong charge pump during certain phases of operation. A capacitor with a lower voltage may be disabled, thus providing for voltage equalization as the enabled capacitor sources current to the output load. The flying capacitors are also equalized during overlapping time periods in which the flying capacitors are charging. | 2015-06-04 |
20150155772 | ABSORPTION CIRCUIT FOR ABSORBING A POWER RIPPLE AND ASSOCIATED METHOD - The present invention concerns an absorption circuit ( | 2015-06-04 |
20150155773 | APPARATUS AND METHOD FOR CONTROLLING INVERTER - An apparatus and a method for controlling an inverter are disclosed. The apparatus determines a 3-phase current by receiving a 2-phase current from a leg-shunt resistor arranged at an emitter terminal of a lower switching element in an inverter unit of an inverter, and determines whether there is an abnormality generated in the 3-phase current, to correct the abnormality in the current. | 2015-06-04 |
20150155774 | SURGING CURRENT SUPPRESSION CIRCUIT - A surging current suppression circuit includes a voltage regulating circuit and a switch circuit. The voltage regulating circuit receives a first DC voltage, and converts the first DC voltage to a second DC voltage. The switch circuit receives the second DC voltage, and outputs a working current according to the second DC voltage. The switch circuit outputs the working current to the electronic device when the working current is lower than a rate current of the electronic device. The working current is grounded via the switch circuit when the working current is higher than the rate current of the electronic device; and the electronic device can not receive the working current when a surging current occurred. | 2015-06-04 |
20150155775 | AC-DC CONVERTER WITH ADJUSTABLE OUTPUT - An electrical adapter can include a rectifying circuit configured to receive an AC power input, a power factor corrector (PFC) circuit coupled with an output of the rectifying circuit, and a capacitive component coupled with an output of the PFC circuit. The electrical adapter can further include a DC-DC converter circuit coupled with an output of the capacitive component and configured to provide a power output of the electrical adapter, and an impedance-measuring circuit coupled with the power output and configured to measure impedance of a cable connected to the power output. The DC-DC converter circuit can be configured to adjust power of the power output based on the measured impedance. | 2015-06-04 |
20150155776 | METHOD OF CONTROLLING A POWER FACTOR CORRECTION CONVERTER AND RELATED CLOSED-LOOP CONTROL SYSTEM - A method controls a power factor correction converter that includes a boost inductor and a switch. The method generates a sense signal representing a rectified AC input voltage or an inductor current through the boost inductor, turns on the switch in response to determining, based on the sense signal, a zero current condition through the boost inductor, turns off the switch after an on-time interval, generates a feedback signal based on an output voltage of the converter, and compares the feedback signal with a threshold. If the feedback signal is smaller than the threshold, the method generates a command signal, representing a phase domain including 0 and π, based on the feedback signal and the power threshold, and keeps the switch off when a phase of the input rectified AC voltage or of the inductor current is in the phase domain even if the zero current condition has been determined. | 2015-06-04 |
20150155777 | Charge Pumps with Improved Latchup Characteristics - Some embodiments of the present disclosure relate to improved regulators for charge pumps. Such regulators selectively activate a charge pump based not only on the voltage output of the charge pump, but also on an series of wake-up pulses that are delivered at predetermined time intervals and which are delivered independently of the voltage output of the charge pump. Hence, these wake-up pulses prevent extended periods of time in which the charge pump is inactive, thereby helping to prevent latch-up in some situations. | 2015-06-04 |
20150155778 | CONTROL DEVICE FOR POWER CONVERSION CIRCUIT - The control device | 2015-06-04 |
20150155779 | DC-DC CONVERTER AND ORGANIC LIGHT EMITTING DISPLAY INCLUDING THE SAME - A DC-DC converter includes a first power source generator, the first power source generator including an input port and a first output port, the first power source generator being configured to receive an input power source to the input port, and being configured to generate a first power source, the first power source being output to the first output port, and a selecting unit, the selecting unit being configured to selectively transmit, to the first power source generator, one of: a feedback voltage, the feedback voltage being input from an external feedback wiring line via a feedback terminal, and a voltage of the first output port. | 2015-06-04 |
20150155780 | Instantaneous Load Current Monitoring - A method and apparatus for monitoring instantaneous load current is disclosed. In one embodiment, an integrated circuit includes a voltage regulator and at least one functional unit implemented thereon. The voltage regulator includes a supply circuit configured to provide a voltage to the functional unit, and a sense circuit configured to determine an amount of current provided to the functional unit by the supply circuit. The sense circuit may determine the instantaneous load current being provided to the functional unit. An indication circuit is configured to provide, to the functional unit, an indication of the amount of current supplied thereto by the supply circuit. | 2015-06-04 |
20150155781 | VOLTAGE CONVERTER AND METHOD FOR VOLTAGE CONVERSION - A voltage converter ( | 2015-06-04 |
20150155782 | DISCONTINUOUS MODE DC-DC CONVERTER - The DC-DC converter includes an inductor cooperating with a first switch and a second switch operating alternately, in order to supply an output voltage of higher, equal or lower level than the level of an input voltage. The converter includes a switching control unit for the switches for determining a first switching time for the first switch and a second switching time for the second switch. The switching control unit includes a voltage-current conversion circuit for converting into current a comparison voltage, which is the difference between the output voltage and the input voltage, a first current being supplied by the conversion circuit for charging a first capacitor to a first voltage threshold to determine the first switching time and a second current being supplied by the conversion circuit for charging a second capacitor to a second voltage threshold to determine the second switching time. | 2015-06-04 |
20150155783 | SWITCHED MODE ASSISTED LINEAR REGULATOR WITH DYNAMIC BUCK TURN-OFF USING ZCD-CONTROLLED TUB SWITCHING - A switched mode assisted linear regulator includes a linear amplifier (LA) and a buck converter configured as a current source. In example embodiments, the buck converter circuit includes a power switch M1 with an M1 body diode (tub), and includes buck turn-off circuitry configured to avoid negative inductor current by controlled switching of the tub to the higher of VIN and a second voltage. For DC-coupled configurations, boost functionality is provided by an LA boost supply, and the tub is switched to the boost supply. For AC-coupled configurations, boost functionality can be provided without boosting the LA supply rail by constraining signal peak-to-peak amplitude to be less than the LA supply voltage (maintaining a DC-average voltage on the AC-coupling capacitor), and the tub is switched to the higher of VIN and VOUT. The buck turn-off circuitry can include zero crossing detection to control M1 tub switches. | 2015-06-04 |
20150155784 | SWITCH MODE POWER SUPPLY WITH TRANSIENT CONTROL AND CONTROL METHOD THEREOF - A SMPS has a switching circuit, an adding circuit and a comparing circuit. The adding circuit adds the output voltage feedback signal of the SMPS to the output current feedback signal of the SMPS to provide a combined feedback signal. The comparing circuit compares the combined feedback signal with a reference signal and provides a comparing signal. And the power switch of the SMPS is controlled based on the comparing signal. | 2015-06-04 |
20150155785 | BUCK CONVERTER HAVING SELF-DRIVEN BJT SYNCHRONOUS RECTIFIER - A switching converter has a self-driven bipolar junction transistor (BJT) synchronous rectifier. The BJT rectifier includes a BJT and a parallel-connected diode, and has a low forward voltage drop. In a first portion of a switching cycle, a main switch is on and the BJT rectifier is off. Current flows from an input, through the main switch, through the first inductor, to an output. Current also flows through the main switch, through the second inductor, to the output. In a second portion of the cycle, the main switch is turned off but the inductor currents continue to flow. Current flows from a ground node, through the BJT rectifier, through the first inductor, to the output. The BJT is on due to the second inductor drawing a base current from the BJT. In one example, the main switch is a split-source NFET that conducts separate currents through the two inductors. | 2015-06-04 |
20150155786 | Controllers and Related Control Methods for Generating Signals Representing an Output Current to a Load in a Switched Mode Power Supply - Controllers and related control methods for a switched mode power supply are disclosed. The switched mode power supply has an inductive device and a power switch connected in series. An output current estimator in a controller is configured for receiving a current-sense signal representing an inductor current flowing through the inductive device and a discharge-time signal indicating a discharge time of the inductive device. The output current estimator generates a charge current in response to the discharge-time signal and the current-sense signal, thereby the charge current substantially corresponding to an output current that the switched mode power supply outputs to a load. The charge current is limited not to exceed a maximum value. A current limiter is configured for limiting the current-sense signal when the charge current is the maximum value. | 2015-06-04 |
20150155787 | Controller for a Switched Mode Power Supply Having an Integrated Circuit with a Multifunction Pin - Disclosure includes a controller in an integrated circuit and a related switched mode power supply. The switched mode power supply has an input power line and a ground line. An inductive device and a power switch are connected in series between the input power line and the ground line. The controller has a multifunction pin and is configured for controlling the power switch. A resistor connects the multifunction pin to the input power line. During a startup procedure, the controller provides a first conduction path conducting from the multifunction pin to the ground line. During normal operation, the controller disconnects the first conduction path, and makes the multifunction pin an output node of an error amplifier comparing a regulated output with a target value, to generate a PWM signal for controlling the power switch. | 2015-06-04 |
20150155788 | CONTROL MODES FOR RESONANT DC-TO-DC-CONVERTER - An electrical power converter ( | 2015-06-04 |
20150155789 | POWER DEVICE - An energy efficient apparatus includes a switching device, a frequency dependent reactive device, and a control element is provided. The switching device is coupled to a source of electrical power and includes a pair of transistors and is adapted to receive a control signal and to produce an alternating current power signal. The frequency of the alternating current power signal is responsive to the control signal. The frequency dependent reactive device is electrically coupled to the pair of transistors for receiving the alternating current power signal and producing an output power signal. The frequency dependent reactive device is chosen to achieve a desired voltage of the output power signal relative to the frequency of the alternating current power signal. The control element senses an actual voltage of the direct current power signal and modifies the control signal delivered to achieve the desired voltage of the direct current power signal. | 2015-06-04 |
20150155790 | METHOD AND DEVICE FOR FREQUENCY GENERATION FOR A RESONANCE CONVERTER - A method and an activation circuit for frequency generation for a resonance converter that is driven by a half bridge or a full bridge. An activation circuit with a controller excites a resonance circuit belonging to the resonance converter. The power, current or voltage of the resonance converter is controlled via the frequency. The controller activates a programmable variable clock generator via a first interface. The frequency dividers able to be programmed via a second interface create the operating frequency of the half bridge or full bridge by dividing the frequency of a clock generator into different duty cycles. The frequency of the clock generator amounts to a multiple of the bridge frequency, and the second clock generator and thereby the H-bridge frequency of the resonance converter is independent of the first clock generator which supplies the controller. | 2015-06-04 |
20150155791 | POWER SUPPLY APPARATUS AND METHOD OF GENERATING POWER BY THE SAME - A power supply apparatus includes a power source, power converters and an output connector. The power converters are configured for converting an input power from the power source into conversion powers. The output connector is configured for receiving the conversion powers from the power converters and outputting a parallel output power, a serial output power or separate output powers corresponding to the conversion powers from the power converters. A method of generating power by a power supply apparatus is also disclosed herein. | 2015-06-04 |
20150155792 | POWER SUPPLY DEVICE AND CONTROL METHOD OF POWER SUPPLY DEVICE - First FET switches control supply of electricity from an external power supply to a primary winding of a transformer. A condenser is connected, in series, to a secondary winding of the transformer. A second FET switch is connected, in parallel, to the secondary winding and the condenser. The diode is connected, in parallel, to the second FET switch. A switch control unit acquires a value obtained by measuring a current flowing through the first FET switches and the second FET switch and controls, on the basis of the measurement result of the current, conduction of the first FET switches and the second FET switch. | 2015-06-04 |
20150155793 | REPETITIVE SERVOMECHANISM CONTROLLER FOR UNINTERRUPTIBLE POWER SUPPLY SYSTEM - A repetitive servomechanism controller for a UPS system has an inner control loop and an outer control loop. The inner control loop regulates inverter current and the outer control loop regulates inverter voltage. The outer control loop includes a repetitive controller in combination with a harmonic servomechanism controller and a feed-forward controller. | 2015-06-04 |