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8873256 Wind turbine with a controller configured to manage resonant effects  
A method and apparatus of operating a controller usable for operating a wind turbine is provided. The wind turbine includes a voltage converter being connectable to a power grid via a filter...
8873259 DC-DC converter including regeneration snubber circuit  
A DC-DC converter includes a regeneration snubber circuit. The snubber circuit is connected in parallel with the secondary diode circuit and includes a series circuit of a discharge blocking...
8872500 Method and apparatus for controlling the maximum output power of a power converter  
An example control circuit for use in a power converter includes an input voltage sensor, a current sensor, and a drive signal generator. The input voltage sensor generates a first signal...
8873261 Current source rectifier modulation in discontinuous modes of operation  
Systems and methods disclosed herein include a controller for a current source rectifier that is configured to facilitate operation in both continuous and discontinuous conduction modes. The...
8873252 Method and apparatus for extending zero-voltage switching range in a DC to DC converter  
Apparatus for extending a zero voltage switching (ZVS) range during DC/DC power conversion. The apparatus comprises a DC/DC converter, operated in a quasi-resonant mode, comprising (i) a...
8867241 Method of upgrading a plant for transmitting electric power and such a plant  
A plant for transmitting electric power through HVDC includes two converter stations interconnected by a monopolar direct voltage network and each having an alternating voltage side for feeding...
8866429 Device and method for power-saving driving of device having same load pattern  
A power-saving driving device is provided for a same load pattern device 23 that is driven by a motor 21 receiving electric power from an inverter 19 and repeatedly operated in a same load...
8863869 Power conversion apparatus and electric vehicle  
The metallic case of a power conversion apparatus includes a casing having a side wall, as well as an upper case and a lower case, a first area being formed between a cooling jacket provided at...
8867240 Method and apparatus to control a power converter having a low loop bandwidth  
A controller for use in a power converter includes a comparator coupled to receive a signal representative of an output of the power converter. A counter is coupled to an output of the comparator...
8866398 Circuits and methods for driving light sources  
A controller for controlling a power converter includes a signal generator and a driver. The power converter receives an input voltage and provides an output voltage to power a load. The signal...
8867246 Communication device and battery pack in which the communication device is provided  
A communication device, includes a CMOS type inverter configured to transfer a signal, the signal being transferred and received between an electronic device and a control part able to communicate...
8866521 Voltage generation circuit of semiconductor memory apparatus  
A voltage generation circuit of a semiconductor memory apparatus includes a plurality of pumping units configured to provide voltages to an output node; a sensing unit configured to sense a...
8866435 Control device and control method for power control unit  
A control device controls an inverter controlling an output of a motor by PWM control. The control device calculates a reference frequency based on a torque and a rotation speed of the motor,...
8867239 Power supply device and method of controlling the same by using an adjustable power factor corrector  
Provided are a power supply device and a method of controlling the same. The power supply device includes: a power factor corrector which corrects a power factor of an initial power; a standby...
8867248 High-efficiency, three-level, single-phase inverter  
A highly efficient transformerless inverter and a method of controlling the same. The inverter is designed for use in a distributed power generation system, such as a home having photovoltaic...
8867250 High output current split package A/C adapter  
A power adapter, including an AC input terminal, an AC-DC power converter, a DC-DC power converter, and an output terminal, wherein the AC-DC power converter and the DC-DC power converter are...
8867245 Switching power supply having high-power integrated circuit and monolithic integrated circuit therefor  
A switching power supply comprises one or more power supply stages that receive power from an input power source and that generate a regulated output voltage for powering a load. A controller...
8867244 HVDC converter including fullbridge cells for handling a DC side short circuit  
A power electronic converter for use in high voltage direct current power transmission and reactive power compensation comprises three converter limbs, each converter limb including first and...
8867243 DC-DC converter for liquid crystal display device  
A DC-DC converter of a liquid crystal display (LCD) apparatus is provided comprising a first capacitor connected between a first node and a second node, a second capacitor connected between a...
8866326 Interleaved motor controllers for an electric taxi system  
Embodiments of the disclosure include an electric taxi system including a generator configured to provide an AC power source and a main controller configured to generate one or more PWM control...
8867238 DC/DC converter, and electric generating system using solar cell having the same  
Disclosed herein is an electric generating system using a solar cell which converts a voltage generated in the solar cell into an Alternating Current (AC) voltage, and applies the converted...
8866332 Circuit arrangement for power distribution in a motor vehicle  
A circuit arrangement (1) for power distribution in a motor vehicle is described, which comprises a transformer (T1, T1a . . . T1n) having at least three transformer windings (W1, W1a . . . W1n,...
8867242 Hybrid 2-level and multilevel HVDC converter  
A voltage source converter is used in high voltage direct current power transmission and reactive power compensation. The voltage source converter includes first and second DC terminals for...
8867247 DC/AC power converter with DC side double frequency pulsation suppression caused by AC side faults  
A commanded negative-sequence current is added to a commanded current so as to suppress double-frequency pulsation on the DC side. The commanded negative-sequence current is found from three...
8867237 Control device of the switching frequency of a quasi-resonant switching converter and related control method  
A control device for a QR switching power converter is described; said power converter is adapted to convert an input signal to a DC output signal and comprises a power switch connected to said...
8867251 Power supply device for solid state drive  
A power supply device for a solid state drive (SSD) inserted into a slot of a computer includes a number of voltage input contacts, a diode, a first voltage regulating module and a second voltage...
8866650 Apparatus, systems and methods for for digital testing of ADC/DAC combination  
A circuit for testing digital-to-analog (DAC) and analog-to-digital converters (ADC) is provided. The circuit applies a code pattern having a plurality of sequential values to the digital to...
8860379 Discharging a DC bus capacitor of an electrical converter system  
A system and method of discharging a bus capacitor of a bidirectional matrix converter of a vehicle are presented here. The method begins by electrically shorting the AC interface of the converter...
8861240 Power converter  
A power converter includes pairs of series-connected switching elements and, for each pair, a bidirectional switch that clamps the switching elements of the pair at the mid-point of a DC voltage...
8861239 Regulating output characteristics of static energy supply units  
A static energy supply unit has an energy store connected to an ac supply network by a power converter. A unit controller for the static energy supply unit includes an amplitude controller, a...
8861231 Converter  
A voltage source converter comprising three phase elements defining a star connection in which a first end of each phase element is connected to a common junction; at least two converter limbs,...
8861228 High voltage controller with improved monitoring and diagnostics  
A high voltage controller configured to drive a high voltage generator. The high voltage controller includes a voltage select input and a current select input, an actual voltage input and an...
8860396 DC-DC converter with modular stages  
An apparatus for electric power conversion includes a converter having a regulating circuit and switching network. The regulating circuit has magnetic storage elements, and switches connected to...
8860385 Voltage controlled current source for voltage regulation  
A system and method for providing a voltage controlled current source for bus regulation is disclosed. A bus current delivered to an electrical bus from a current source is controlled using a...
8860381 Balancing vibrations at harmonic frequencies by injecting harmonic balancing signals into the armature of a linear motor/alternator coupled to a Stirling machine  
Vibrations at harmonic frequencies are reduced by injecting harmonic balancing signals into the armature of a linear motor/alternator coupled to a Stirling machine. The vibrations are sensed to...
8861234 Voltage source converter having chain link converter for use in high voltage DC transmission  
A DC voltage source converter for use in high voltage DC power transmission comprising at least one chain-link converter connected between first and second DC terminals. The or each chain-link...
8861237 Power supply apparatus  
A power supply apparatus mainly includes a secondary side controller, a digital isolator, a plurality of isolation sensing units, and a driving unit. The secondary side controller is configured to...
8861235 Power converting apparatus  
A power converting apparatus includes a main inverter having a high-voltage DC power supply that operates at a low frequency employing SiC MOSFETs having a high withstand voltage exceeding 600 V...
8861230 Control circuits for power converters  
A control circuit for controlling one or more power switches of a power converter includes a voltage control loop and a current control loop. The control circuit is configured to generate a...
8860397 Method of forming a semiconductor device and structure thereof  
A power control circuit and method of formation is provided, which in one embodiment includes a low voltage detection circuit to process a rectified input voltage from at least one alternating...
8861236 Switching power supply with self-optimizing efficiency  
A switching power supply is provided that includes: input terminals for the uptake of an input power, output terminals for providing an output power, a circuit disposed between the input and...
8861233 Programmable switching for switched capacitor DC-DC converter  
A method and apparatus for regulating a dc-dc converter wherein a plurality of switches are arranged with respect to an energy storage device and an output capacitor. An impedance of one or more...
8861229 Isolator circuit including a voltage regulator  
An apparatus includes a regulator circuit that generates a voltage in response to an input current being supplied to an input terminal and functional circuitry, powered by the voltage generated by...
8861232 Current-sensing circuit and air-conditioning device provided therewith  
The current-sensing circuit (1) includes a shunt resistor (R1) connected in series with a path of current from an inverter (106), an operational amplifier (12) amplifying voltage across both ends...
8860523 Pulse width modulation circuit and voltage-feedback class-D amplifier circuit  
The frequency characteristic of a voltage-feedback class-D amplifier circuit for driving an output load is improved. A triangular-wave correction circuit which compensates a gradient of a...
8861238 Isolated soft-switch single-stage AC-DC converter  
An alternating current-to-direct current (AC-DC) converter is provided. The converter may include a transformer having a primary side and a secondary side. A first bi-directional switch and a...
8855558 Adaptive inductive power supply with communication  
An adaptive inductive ballast is provided with the capability to communicate with a remote device powered by the ballast. To improve the operation of the ballast, the ballast changes its operating...
8854848 Power supplying device having programmable current-balancing control  
A power supplying device having programmable current-balancing control includes at least two power modules in parallel. Each power module includes a power convertor, a current sensing component, a...
8853989 Fuel cell system and motor driving method  
A motor can be driven while reducing the power loss of the entire system where a plurality of devices that causes power losses exists. The system is provided with an inverter connected to a motor,...
8854019 Hybrid DC/DC power converter with charge-pump and buck converter  
A hybrid Direct Current (DC) to DC converter is disclosed for efficiently converting an input voltage from one level to another. In a preferred embodiment, a dual phase charge pump is combined...