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8953345 Power converter device and driving method thereof  
A leg includes: two semiconductor device groups connected in series and a division current is generated in a current which flows in the semiconductor device group between elements in the...
8952621 High pressure discharge lamp lighting device, projector provided with the same, and high pressure discharge lamp lighting method  
A calculation processing sub-unit controls a frequency control sub-unit and a DC-AC inverter circuit to repeat a first period and a second period. The first period continues for at least two...
8953347 Capacitor discharging circuit and power converter  
A capacitor discharging circuit and a power converter having the capacitor discharging circuit are disclosed. The capacitor discharging circuit comprises a conversion module connected with the two...
8953341 Converter with reduced power consumption  
A converter may include a transformer; a first circuit arrangement coupled to a first transformer side; a second circuit arrangement coupled to a second transformer side, wherein the second...
8953351 Power conversion apparatus for electronic apparatus  
A power conversion apparatus is provided. The power conversion apparatus includes an AC to DC adapter, an input port, a power conversion control unit, and a restart circuit. The AC to DC adapter...
8953340 Single phase power supply for inductively coupled power transfer systems  
An ICPT system has a single phase power supply which energises a conductive path (13) and has an inverter (5) to provide an alternating current at an operating frequency greater than the single...
8953350 Photovoltaic power converters  
Photovoltaic power converter systems and methods are described. In one example, a method for use in operating a solar power converter includes sampling a DC link voltage of a DC link during a...
8953348 Switching power supply circuit and power factor controller  
The switching power supply circuit includes a full-wave rectifier (1) which full-wave rectifies alternating power-supply voltage to output a pulsating current, and an inductor (3) connected to the...
8953352 Controller and a method for a DC converter, and also a DC converter  
A controller (2) and a method for a DC converter (1), wherein the DC converter (1) comprises an input (E), an output (A), a connection to ground (GND), and also at least two half-bridges with two...
8953342 Systems and methods for regulating power conversion systems with output detection and synchronized rectifying mechanisms  
System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes a first controller terminal and a second controller terminal. The...
8953346 Converting circuit for converting input voltage into output current  
A converting circuit for receiving an input voltage and generating an output current, including: a transistor, coupled to a supply voltage at a drain of the transistor, and a source of the...
8952667 Switching power supply circuit  
A master transistor and a slave transistor are both insulated gate bipolar transistors. A slave diode is connected in anti-parallel to the slave transistor. The master transistor is brought into...
8952792 Self tuning RFID tags  
A tuning circuit in an RFID tag may be used to match antenna and integrated circuit (IC) impedances to maximize the efficiency of IC power extraction from an incident RF wave. The tuning circuit,...
8953349 Systems and methods for providing AC/DC boost converters for energy harvesting  
The present invention describes systems and methods for harvesting energy from an alternating magnetic field. An exemplary embodiment can include a flux concentrator having an open core coil...
8950939 Closure assembly and a collapsible pouch container provided with a closure assembly  
A closure assembly comprising an article with a neck and a cap. The cap includes a tamper-evident ring having at least two ring segments, each ring segment having a base portion and an indicator...
8952766 Control board, inverter device and integrated-inverter electric compressor  
An object is to provide a control board, an inverter device, and an integrated-inverter electric compressor that are capable of improving electromagnetic compatibility (EMC property) and improving...
8953353 Power converter  
A power converter including a cooler having a cooling flow path in which a refrigerant flows, a base plate to which switching elements are attached, a control circuit board on which...
8953343 Power supply apparatus having multiple outputs  
A power supply apparatus having multiple outputs which includes a transformer, a first output circuit generating a first output voltage with respect to a power transferred to a secondary side of...
8953344 Power converter control method associated to a generator  
Optimizes the operation and control of electric generators against events produced in the power grid, such as voltage dips or overvoltages, comprising the following steps: detecting that the DC...
8952676 Transmitting and receiving electrode system and power transmission method using the same  
A transmitting and receiving electrode system, and power transmission method using the same are provided. The transmitting and receiving electrode system includes: a voltage/current detection unit...
8946946 Converter device and method for converting electrical power  
A converter device (for power conversion in e.g. a power plant such as a wind turbine is disclosed. An individual controller is provided for each phase of an electrical output power of the...
8947894 Switched mode power supply including a flyback converter with primary side control  
A method and apparatus for controlling a flyback converter are presented. The flyback converter includes a transformer, a semiconductor switch coupled to a primary winding of the transformer, a...
8947893 Switch controller and converter including the same for prevention of damage  
In a converter using a transformer, a switch controller controlling a main switch and an auxiliary switch increase a turn-on time of the auxiliary switch when a voltage of a signal corresponding...
8947896 Proportional bias switch driver circuit  
A switch bias system is provided that includes a bipolar junction transistor (BJT) switch comprising a base, emitter, and collector; a current sense circuit coupled to the emitter, the current...
8947895 Two-peak current control for flyback voltage converters  
A system including a switch configured to supply power to a load. A first comparator is configured to compare a first current through the switch to a first threshold. A second comparator is...
8947897 Current-source power converting apparatus  
A current-source power converting apparatus in an embodiment includes a current-reference generating unit, a polarity determining unit, a PWM-pulse-signal generating unit, and a drive-signal...
8947340 Backlight unit and display apparatus having the same  
A backlight unit includes a plurality of light sources, a boost circuit, a plurality of balance circuits, and a plurality of first resistors. The boost circuit boosts an input alternating current...
8946937 Switching circuits for extracting power from an electric power source and associated methods  
An integrated circuit chip includes a first input port, a first output port, and first and second transistors electrically coupled in series across the first input port. The second transistor is...
8947018 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Dimmable LED driver and method for controlling the same
 
A dimmable LED driver adapted to be operated with a dimmer that is configured to generate a predetermined conductive angle, wherein the dimmable LED driver comprises: a rectifier configured to...
8947158 Semiconductor device and electronic device  
To reduce a variation in the electrical characteristics of a transistor. A potential generated by a voltage converter circuit is applied to a back gate of a transistor included in a voltage...
8947898 Power convertion circuit using high-speed characterisics of switching devices  
A power conversion circuit converting DC electric power into AC electric power and sending the AC power to an inductive load, includes a first switching device connected to the DC power supply; a...
8947899 Split laminated DC bus structure  
An apparatus and method for mounting additional components, such as capacitors, to a DC bus of a motor drive. In one aspect, a motor drive includes an enclosure defining an interior, an input for...
8942012 Method of forming a switched mode power supply controller device with an off mode and structure therefor  
At least one embodiment is directed to a semiconductor voltage controller comprising: a start-mode circuit associated with a start-mode; and an off-mode circuit associated with an off-mode, where...
8942020 Three-level phase leg for a power converter  
A phase leg for a three-level power converter includes a heat sink device that includes a first surface and a second surface opposite the first surface. The phase leg also includes a first portion...
8942014 Converter cell for cascaded converters and a control system and method for operating a converter cell  
A cascaded electric power converter and a method of operating a cascaded electric power converter are disclosed. The cascaded converter includes: a converter cell including a cell capacitor and at...
8942011 Power supply apparatus and image forming apparatus  
A power supply apparatus supplies regulated power to an external apparatus. A power switch is turned on to receive AC power and turned off not to receive the AC power. The AC power is rectified by...
8942010 Inverter of new and renewable energy storage system  
Provided is an inverter of a renewable energy storage system, which has an input port and an output port electrically insulated, and is compact and low-priced, while having a simplified circuit....
8942017 Energy storage system and method thereof  
An energy storage system (ESS) and a method thereof are disclosed. The system includes a maximum power tracking control unit changing a controlled variable for maximum power point extraction in...
8941340 Regenerative variable frequency drive  
A regenerative variable frequency drive includes an active converter connected to an inverter. The converter has a filter capacitor, an inductor, two half bridges, bus bars that connect to the...
8941347 Converter control device and air conditioner including converter control device  
A converter control device comprises: a voltage-zero-cross detection unit detecting zero cross of the alternate-current voltage and outputting a voltage zero-cross signal; a power-source-current...
8942018 Single-phase self-driven full-bridge synchronous rectification  
A full-bridge rectifier is configured to provide synchronous rectification with either a current-source or a voltage-source. The rectifier has an upper branch and a lower branch and two current...
8942013 Over voltage protection for electric machines  
A system and method for protecting an electrical power generation system from an over-voltage. The output voltage of a multi-phase rectifier, operatively connected between the output terminals of...
8942015 Control device and control method during bypassing of power units  
A control device and a control method during bypassing of power units are provided. The method includes: detecting a first three-phase output electrical signal; calculating a first positive...
8942016 Power supply apparatus  
A second control circuit is configured to switch a pulse signal to a level which turns off a second switching transistor when a coil current that flows through a primary winding reaches a...
8941366 DC-DC converter having an output that is a measure of the efficiency of the converter  
A DC-DC converter includes efficiency reporting circuitry having an output that is a measure of efficiency. In an example, the DC-DC converter has an input voltage, an output voltage, and a...
8941976 Configurable powerline Ethernet adapter and power supply  
The embodiments provide a powerline network adapter that allows network communications over power lines while also being configurable to provide other features. In the embodiments, the network...
8942019 Current vector controlled deadtime for multilevel inverters  
A multilevel inverter circuit includes an inverter control circuit that controls switching of main and neutral switches. The inverter control circuit receives current vector information indicating...
8937824 Photovoltaic system and method of controlling same  
A photovoltaic (PV) system is disclosed that provides dynamic regulation of the output of a PV array such that the inverter can safely operate without entering a voltage protection mode. The PV...
8937470 Active power factor correction circuit and related PFC controller  
An active power factor correction (PFC) circuit for calibrating a power factor of an AC-to-DC converter when the active PFC circuit is coupled with the AC-to-DC converter is disclosed including: a...
8937822 Solar energy conversion and utilization system  
A 1, 2 or 3-phase DC to AC converter system for reducing the cost of solar energy installations achieves cost reduction by eliminating low-frequency power transformers. One DC input polarity is...