H02M 5 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases

Patents for H02M 5 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases (13,094)
11/2009
11/18/2009	CN201349183Y Voltage feedback device of motor soft starter
11/18/2009	CN201349182Y Level shifter circuit
11/18/2009	CN201349181Y Combinable high voltage single phase gradual dephasing supply apparatus
11/18/2009	CN201349176Y Voltage-current signal convention circuit for frequency converter
11/18/2009	CN201349138Y Electric locomotive charger
11/18/2009	CN101584106A System and method to extend synchronous operation of an active converter in a variable speed drive
11/18/2009	CN101582644A Phase-control compensation-type alternating current voltage stabilizing and regulating device and voltage compensation method thereof
11/18/2009	CN101582588A Efficient energy-saving device in power supply network
11/18/2009	CN100562204C Electronic stabilizer with wave crest factor correction
11/18/2009	CN100561868C Power switching device
11/18/2009	CN100561844C AC power-supply socket bleeder circuit
11/17/2009	US7619907 DC/DC power conversion device
11/17/2009	US7619905 Method of controlling connection of a supply of AC power to a load and to a power supply grid
11/17/2009	CA2598099C Electric power converter apparatus
11/17/2009	CA2174568C Interconnection system for transmitting power between electrical systems
11/12/2009	US20090279915 Method and apparatus for generating a spread spectrum signal in a printer power supply unit
11/12/2009	US20090279339 Cycloconverter generator
11/12/2009	US20090279338 Cycloconverter generator
11/12/2009	US20090278573 Band Converted Signal Generator and Band Extender
11/12/2009	DE102008015819B3 Regulator for regulating alternating voltage, has secondary winding comprising non-switchable section and multiple switchable sections, where number of windings of non-switchable section and switchable sections is equal
11/11/2009	EP2117113A1 Cycloconverter generator
11/11/2009	EP2117112A1 Cycloconverter generator
11/11/2009	EP2117110A2 System for generating electrical energy
11/11/2009	EP2117107A2 Cycloconverter generator
11/11/2009	CN201345752Y One-driving-two frequency conversion power supply device for medium-frequency induction furnace
11/11/2009	CN201345751Y Energy-saving high-power IGBT (Insulated Gate Bipolar Transistor) series resonant type intermediate frequency induction heating power circuit
11/11/2009	CN201345617Y Coaxial downhole type high-voltage DC power supply
11/11/2009	CN201345615Y Z-source soft switch power factor correction full-bridge converter
11/11/2009	CN201345605Y Multifunctional current rise device
11/11/2009	CN201345286Y High-frequency transformer for high-power switch power supply
11/11/2009	CN101578756A Power converter with snubber
11/11/2009	CN101578193A Electric power feeding system
11/11/2009	CN101577499A Cycloconverter generator
11/11/2009	CN101577498A Cycloconverter generator
11/11/2009	CN101577497A Cycloconverter generator
11/11/2009	CN101577496A Industrial frequency transformer
11/11/2009	CN101577483A Transformer with time-sequence switching voltage-transformation selective circuit
11/10/2009	US7616464 Reverse current control system for a power converter
11/05/2009	WO2009134871A1 Cat-ear power supply having a latch reset circuit
11/05/2009	WO2009103504A3 Wind energy plant having a double-energized asynchronous generator and converter control
11/04/2009	EP2114000A2 Phase current detectionapparatus
11/04/2009	EP2113999A2 Phase current detection apparatus
11/04/2009	EP2113998A2 Phase current detection apparatus
11/04/2009	EP2113997A2 Phase current detection apparatus
11/04/2009	EP2113996A2 Phase current detection apparatus
11/04/2009	CN201341092Y Multi-purpose air conditioner electricity saver
11/04/2009	CN201341091Y Optical fiber expanded circuit board of high-voltage frequency transformer
11/03/2009	US7613018 Apparatus and method for supplying DC power source
10/2009
10/29/2009	WO2009131429A1 Modular transformer
10/29/2009	WO2009103505A3 Wind energy plant having converter control
10/29/2009	US20090266805 Method And Apparatus For Receiving A Universal Input Voltage In A Welding Power Source
10/28/2009	EP2111688A1 Apparatus and method for controlling the motor power
10/28/2009	CN101568205A Electromagnetic heating system
10/28/2009	CN101567632A Compensated high-current generation device
10/28/2009	CN101567539A Method and device for overhead transmission line harmonic and resonance deicing
10/28/2009	CN100555832C Power conversion apparatus and methods using DC bus shifting
10/28/2009	CN100555830C Control device for an AC-AC converter
10/27/2009	US7609534 Operating a three phase device using single phase power
10/27/2009	US7609024 Auxiliary bus method
10/27/2009	US7609022 Power supply system for vehicle with improved energy efficiency and vehicle including the same
10/22/2009	US20090265040 Matrix Converters For Wind Energy Conversion Systems
10/21/2009	CN201332384Y Dragging device specially for oil pumping unit in oil field
10/21/2009	CN201332382Y Back-to-back type unit series connection multilevel structure high-voltage transformer
10/21/2009	CN201332361Y Transformer automatic pressure regulating apparatus
10/21/2009	CN201332360Y Large power high frequency high voltage redundancy throttling power supply
10/21/2009	CN201332280Y Wind power generation current-transformation device
10/21/2009	CN201332279Y 电力质量控制系统 Power Quality Control System
10/21/2009	CN201332277Y Transducer redundant system of large scale wind generating set
10/21/2009	CN201331907Y Power supply device of integrated liquid crystal display device
10/21/2009	CN101562401A Three-phase intermediate frequency power supply
10/21/2009	CN101562400A High-voltage power conversion device
10/21/2009	CN100553112C Offset PWM signals for multiphase motor
10/21/2009	CN100553095C High-frequency high-voltage power supply for detecting leakage of plastic liquid container
10/21/2009	CN100553094C Coupled-inductors current-doubler and electric converter with the coupled-inductors current-doubler
10/21/2009	CN100553086C Power converter, inverter x-ray high voltage unit, fluoroscopic system, x-ray CT system, MRI system
10/20/2009	US7606052 Filter device
10/20/2009	US7605487 Method for operating a frequency converter of a generator and wind energy turbine having a generator operated according to the method
10/15/2009	WO2009125047A1 Power supply apparatus and power supply arrangement
10/15/2009	US20090257261 Control method for the matrix converter
10/15/2009	DE102008018388A1 Method for automatic detection of load attached to dimmer and for automatic assignment of control method by dimmer, involves testing dimmer at point of time between application of phase angle-control signal to load and current zero-point
10/15/2009	DE10162246B4 Stromversorgungseinrichtung für einen Spannungszwischenkreis-Umrichter A power supply device for a voltage-source converter
10/14/2009	EP1864371B1 Matrix converter
10/14/2009	CN201328085Y Suspension-type DC power supply device
10/14/2009	CN201328084Y DC Bus voltage compensatory frequency converter
10/14/2009	CN201327934Y Potential switching device of power supply commutator
10/14/2009	CN100550589C Frequency converter and its control method
10/14/2009	CN100550567C Power circuit module and fixed current power output control system
10/13/2009	US7602622 Compensator with filter for use with a three-phase drive powering a one-phase load
10/08/2009	WO2009121724A1 Switchable freewheeling circuit for matrix converters
10/08/2009	US20090251114 Alternating-current power supply device recovering magnetic energy
10/08/2009	DE102008016840A1 Schaltbarer Freilaufkreis für Matrixumrichter Switchable freewheeling circuit for matrix converter
10/07/2009	EP2106633A2 System and method to extend synchronous operation of an active converter in a variable speed drive
10/07/2009	CN201323550Y Brushless double-feed aerogenerator control system based on matrix type convertor
10/07/2009	CN201323532Y Mid-position clamp circuit of three-level voltage source type frequency converter
10/07/2009	CN201323531Y 6KV high-voltage transducer directly composed of three-level H-bridge power unit module
10/07/2009	CN101552594A High-fidelity power amplifying circuit in power supply regenerator
10/07/2009	CN101552562A Filter device for three-phase power supply
10/07/2009	CN101552561A High power frequency conversion power supply system for testing
10/07/2009	CN100547892C Method of forming a floating charge pump and structure therefor
10/07/2009	CN100547412C Detection circuit for detecting input voltage of transformer and detection method

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