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| Application No. | Application Title | Issue Date |
| 20120106219 | SEMICONDUCTOR DEVICE FOR WIRELESS COMMUNICATION Provided is a semiconductor device for wireless communication which achieves a reduction in leakage power and allows an improvement in power efficiency. For example, to external terminals, an antenna driver section for driving an antenna and a rectifying section for rec... | 05/03/2012 |
| 20120106218 | POWER CONVERSION APPARATUS In order to widen an operational input voltage range of a power conversion apparatus and obtain a maximum efficiency value comparable to that in a case where the operational input voltage range is not widened by changing software but not hardware, provided is a power co... | 05/03/2012 |
| 20120069617 | Switching Power Converters and Controllers Having Auxiliary Power Circuits Switching device controllers, drive circuits, power converters and related methods are disclosed. One example controller for a switching device includes a drive circuit for controlling the switching device and an auxiliary circuit coupled to the drive circuit. The auxil... | 03/22/2012 |
| 20120051109 | ACTIVE RECTIFIER WITH DELAY LOCKED LOOP, WIRELESS POWER RECEIVING APPARATUS INCLUDING ACTIVE RECTIFIER An active rectifier and a wireless power receiver including the active rectifier are provided. According to an aspect, an active rectifier may include: a first loop configured to provide voltage when the phase of an input signal is positive; and a second loop configured... | 03/01/2012 |
| 20120049937 | HIGH EFFICIENCY CHARGE PUMP It is described a high efficiency rectification stage using dynamic threshold MOSFET. The idea is to use the input signal to reduce the threshold voltage when the transistor has to be on, and to increase the threshold when the transistor has to be off. This allows reduc... | 03/01/2012 |
| 20120033472 | Multi-Phase Drive System A drive system for driving a multi-phase motor (such as a three-phase AC motor) or other load. Where a transformer is used, the transformer may have a disconnected wye configuration on the secondary side. The system may also utilize the average or other combination of D... | 02/09/2012 |
| 20120020135 | AC/DC Power Conversion Methods and Apparatus An AC/DC converter that converts an AC input voltage Vin to a DC output voltage comprises an inductor, a capacitor selectively coupled to the inductor, a plurality of switches, and a controller. The controller configures the plurality of switches, inductor, and capacito... | 01/26/2012 |
| 20110318039 | POWER SUPPLY DEVICE AND IMAGE FORMATION APPARATUS A power supply device includes: a power supply part to convert an AC voltage from an AC power source into a direct current and output a DC voltage; a zero cross detector to detect zero cross timings of AC voltage; and a power supply controller to control supply of the A... | 12/29/2011 |
| 20110317460 | SYSTEM AND METHOD FOR CONTROL OF MULTIPHASE POWER CONVERTERS A control system for controlling a multiphase power converter includes a current control module, a voltage control module and a current command selector. The current control module generates grid voltage command signals for the multiphase power converter and the voltage... | 12/29/2011 |
| 20110316465 | CONTROLLING METHOD OF SWITCHES OF SWITCHING ARMS, NOTABLY FOR CHARGING ACCUMULATION MEANS, AND CORRESPONDING CHARGING DEVICE The present invention relates to a method for charging accumulation means via an external electrical network via at least a first (A) and a second (B) switching arm respectively comprising two switches (12), said method comprising a step for controlling the switc... | 12/29/2011 |
| 20110305055 | ADAPTIVE SYNCHRONOUS RECTIFICATION CONTROL METHOD AND APPARATUS An adaptive synchronous rectification control circuit and a control method are developed. The control circuit comprises an adaptive circuit that generates a reference signal in response to a detection signal of a power converter. A clamped circuit clamps the reference s... | 12/15/2011 |
| 20110254823 | DRIVE DEVICE AND DISPLAY DEVICE The drive device includes a first switch section including switching elements, a second switch section including switching elements, and output circuits. Each of the output circuits includes a switching element having a first and a second end, a first voltage being supp... | 10/20/2011 |
| 20110255320 | ELECTRIC POWER CONVERTER FOR VEHICLE In an electric power converter for a vehicle which is connected to an alternating-current generator for a vehicle and performs synchronous rectification, switching mistakes are reduced and efficiency is improved by setting an optimal control allowance time in generating... | 10/20/2011 |
| 20110254494 | RAPID REVERSIBLE CHARGING DEVICE FOR AN ELECTRIC VEHICLE A device for generating electric power of a traction system of a motor vehicle powered by a battery, including a first rectifier stage configured to be connected to a power supply network or to a load to be powered, a second inverter stage configured to be connected to ... | 10/20/2011 |
| 20110242865 | Self-powered Active Rectifier Circuit and Related Method of Operation for Photovoltaic Solar Power Arrays The active rectifier circuit and related method of operation disclosed herein is self-powered and improves the efficiency and reliability of photovoltaic solar power systems by replacing the conventional bypass and blocking rectifiers used in such systems. The circuit i... | 10/06/2011 |
| 20110242864 | CURRENT SOURCE POWER CONVERSION CIRCUIT An example of the current source power conversion circuit is provided with a plurality of half-bridge rectifier circuits which are connected in parallel, each including a serial connection of a first switch circuit having a first self-turn-off element and a first diode ... | 10/06/2011 |
| 20110236591 | BIPOLAR RECTIFIER POWER SUPPLY A process for powering an electrical load includes applying a rectified alternating current waveform across the load for a first time period with only a single power supply for at least two half cycles. At least one half cycle of an alternating current waveform of oppos... | 09/29/2011 |
| 20110235380 | POWER CONVERSION Exemplary embodiments are directed to power conversion. A device may include a controllable switch coupled between an AC network and a DC network. The device may further include control circuitry configured to modify a configuration of the switch based on a detected dif... | 09/29/2011 |
| 20110235381 | ACTIVATION OF A SYNCHRONOUS RECTIFIER A rectifier bridge circuit is described for rectifying the phase voltage generated by a generator, including a positive half-bridge having multiple rectifier elements and a negative half-bridge having multiple rectifier elements. The rectifier elements each have a contr... | 09/29/2011 |
| 20110222325 | SEMICONDUCTOR DEVICE A semiconductor device of a three-level inverter circuit with a reduced number of power supplies for driving IGBTs. The semiconductor device includes a series-connected circuit of IGBTs between P and N of a DC power supply and an AC switch element that is connected betw... | 09/15/2011 |
| 20110216566 | SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE In a rectifier circuit, by using a transistor whose off-state current is small as a so-called diode-connected MOS transistor included in the rectifier circuit, breakdown which is caused when a reverse bias is applied is prevented. Thus, an object is to provide a rectifi... | 09/08/2011 |
| 20110199799 | SELF-DRIVEN AC-DC SYNCHRONOUS RECTIFIER FOR POWER APPLICATIONS Systems, methods, and devices that employ self-driven gate-drive circuitry to facilitate controlling power switches to emulate a diode bridge to synchronously rectify a power signal are presented. A single-phase or multi-phase synchronous rectifier can comprise at least... | 08/18/2011 |
| 20110181218 | SEMICONDUCTOR APPARATUS A semiconductor apparatus includes: a first transistor; a second transistor having a higher withstand voltage than the first transistor, a source of the second transistor coupled to a drain of the first transistor, a gate of the second transistor coupled to a source of ... | 07/28/2011 |
| 20110182095 | PACKAGE FOR SYNCHRONOUS RECTIFIER MODULE The present technology discloses a package for a synchronous rectifier module, and also discloses synchronous rectification circuits and power supply adapters. The synchronous rectification circuit co-packages the synchronous rectifier and the driver into one single pac... | 07/28/2011 |
| 20110181115 | Power management DC-DC converter and method for induction energy harvester A system for managing AC energy harvested from a harvesting device (1) including a coil (4) including switching circuitry (S1-S4) coupled between first (7A) and second (7B) terminals of the coil. The switching circuitry includes... | 07/28/2011 |
| 20110170325 | LINE SWITCHER FOR POWER CONVERTERS A regulated power supply apparatus and method are provided. The apparatus includes a converter circuit for generating a regulated voltage signal. The converter circuit includes a first switching circuit and a second switching circuit both coupled with an output circuit.... | 07/14/2011 |
| 20110163729 | Resonant transformer systems and methods of use Resonant transformer systems and methods of use are described. One aspect may include a primary winding, a secondary winding, and at least one output winding. In further aspects, a transformer may be coupled to the secondary winding. In one aspect, the output winding is... | 07/07/2011 |
| 20110157945 | Synchronous Rectifier Circuit A synchronous rectifier circuit rectifies an AC input voltage to produce a DC output voltage. The synchronous rectifier circuit comprises MOSFET switches coupled within the secondary transformer windings resulting in a shortened AC current path compared to conventional ... | 06/30/2011 |
| 20110157946 | MULTI-OUTPUT BUCK CONVERTING APPARATUS WITH SHUTDOWN PROTECTION A multi-output buck converting apparatus with a shutdown protection includes a main buck converter and at least one auxiliary buck converter to provide multi-output voltages. The multi-output buck converting apparatus further includes an abnormal voltage signal generati... | 06/30/2011 |
| 20110157947 | MULTI-OUTPUT BUCK CONVERTING APPARATUS WITH CONTROLLABLE ENERGY-RELEASING FUNCTION A multi-output buck converting apparatus with a controllable energy-releasing function includes a main buck converter and at least one auxiliary buck converter to provide multi-output voltages. The multi-output buck converting apparatus further includes an energy releas... | 06/30/2011 |
| 20110157944 | TEMPERATURE MONITORING FOR CIRCUIT BREAKERS Method for detecting and/or monitoring the temperatures of at least two electronic power switches, in particular semi-conductor power switches that are coupled with or arranged on a common cooling body, whereby a temperature detection and/or monitoring is carried out by... | 06/30/2011 |
| 20110149623 | ACTIVE PARASITE POWER CIRCUIT A circuit is provided that includes a parasitic power circuit that powers a parasitic circuit. The parasitic power circuit derives a supply voltage from an external AC or other signal suitable for use as a communications signal. A PMOS transistor or transistors is utili... | 06/23/2011 |
| 20110141782 | N-PHASE ACTIVE BRIDGE CIRCUITS INCLUDING N-CHANNEL FIELD EFFECT TRANSISTORS WITH ACTIVE GATE DRIVE An n-phase transistor active bridge circuit (BC) connectable between at least two input lines (103, 105, 1051, 1053, 1055) and a pair of output lines (134, 136, 1057, 1059). The BC comprises a plurality of field-effect transistors (FETs) of the same channe... | 06/16/2011 |
| 20110141783 | CONTROL OF FOUR-LEG TRANSFORMERLESS UNINTERRUPTIBLE POWER SUPPLY A system and method for managing a 4 leg transformerless Uninterrupted Power Supply is disclosed. The system comprises a 3 leg inverter modulation signal generator that applies signals to a modulation circuit that generates a 4th leg modulation signal based o... | 06/16/2011 |
| 20110141784 | TIMING CONTROLLED AC TO DC CONVERTER A timing controlled converter for converting a time varying input signal to a regulated DC output voltage for application to a load circuit. A feedback loop is employed as a control means for switchably coupling the time varying input signal to the load circuit for cont... | 06/16/2011 |
| 20110134675 | CURRENT-SOURCE POWER CONVERTER USING NORMALLY-ON FIELD EFFECT TRANSISTORS The invention relates to a current-source power converter comprising, in its rectifier module (20) and/or its inverter module, switching legs equipped with normally-on field effect transistors (T1-T6, Q1-Q6) each controlled by a gate c... | 06/09/2011 |
| 20110133573 | GROUND POWER UNIT FOR AIRCRAFT Embodiments of a ground power unit are disclosed for providing power to a grounded vehicle, such as an aircraft. In accordance with certain embodiments, the ground power unit (GPU) accepts a wide range of AC input voltages and is capable of providing a range of DC outpu... | 06/09/2011 |
| 20110134674 | Active rectifier and method for energy harvesting power management circuit An active rectifier (12) couples a first input voltage (Vin1) to a first electrode of a first transistor (M3) having a second electrode coupled to an output (4) conducting an output voltage (Vout), and couples a second input voltage (Vin2<... | 06/09/2011 |
| 20110134673 | AC-DC CONVERTER AND AC-DC CONVERSION METHOD The present invention provides an AC-DC converter and AC-DC conversion method for converting an AC input provided by a power transfer winding. The AC-DC converter includes a rectifying means for rectifying the AC input into a rectified output, and a control means for co... | 06/09/2011 |
| 20110124310 | SWITCH MODE VOLTAGE RECTIFIER, RF ENERGY CONVERSION AND WIRELESS POWER SUPPLIES Embodiments of the present invention provide cross-coupled rectifiers that use near zero-threshold transistors in a switching topology, but provide a topology that avoids reverse conduction problems. Importantly, preferred embodiment rectifiers of the invention only pro... | 05/26/2011 |
