Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02M - Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems; Conversion of dc or ac input power into surge output power; Control or regulation thereof › H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189)
09/1999
09/08/1999CN1228240A Circuit arrangement for operating discharge lamp
09/08/1999CN1228006A Modular support for functional elements of HT/block and its apparatus
09/08/1999CN1227988A Switched-mode power supply with active harmonics limiting
09/07/1999US5949671 Power supply with re-configurable outputs for different output voltages and method of operation thereof
09/07/1999US5949669 Low-loss power current inverter
09/07/1999US5949668 Power amplifier with multiple switched output stages, and method and driver for operating same
09/07/1999US5949664 Current stiff converters with resonant snubbers
09/07/1999US5949663 Inverter apparatus capable of readily modification of the specification and performance thereof
09/07/1999US5949640 Power inverter with re-orientable display panel and AC port modules
09/07/1999US5949229 Power factor correction circuit having an error signal multiplied by a current signal
09/07/1999CA2170539C Accident detection circuit of a voltage-type self-excited power converter
09/03/1999CA2262035A1 Switched-mode power supply with active harmonics limiting
09/02/1999WO1999044276A1 Voltage controller for supply of three-phase unbalanced load from static inverter
09/02/1999DE19901930A1 Combinational circuit component
09/01/1999EP0870220B1 Circuit for the production of an auxiliary voltage
09/01/1999CN1227475A Electrical curcuit structure for supplying power
08/1999
08/31/1999US5946208 Power converter
08/31/1999US5946207 Power supply having a synchronous rectifier circuit for improved switching timing
08/31/1999US5946205 Power conversion system with series connected self-commutated converters
08/31/1999US5946202 Boost mode power conversion
08/31/1999US5946201 Boost-up power factor correcting circuit using a power feedback
08/31/1999US5946200 Circulating current free type high frequency soft switching pulsewidth modulated full bridge DC/DC converter
08/31/1999US5946178 Protective circuit for series-connected power semiconductors
08/31/1999US5945802 Ground fault detection and protection method for a variable speed ac electric motor
08/31/1999US5945785 Power source device with minimized variation in circuit efficiency due to variation in applied voltage to driving transformer
08/31/1999CA2208330C Controller for power transducers
08/26/1999WO1999043190A1 Cooling element for electronic power device and power electronic device comprising same
08/26/1999WO1999043076A1 Device for controlling inverters
08/25/1999EP0937330A1 A resonant power converter for energising a coil
08/25/1999CN2335307Y Guasi-resonating dc high-voltage generator with 75% high-voltage measuring button
08/24/1999US5943229 Solid state transformer
08/24/1999US5943223 Power conversion circuit
08/24/1999US5942953 Oscillation circuit driven alternately by two different square wave periodic signals having different half cycle durations
08/24/1999US5942876 Inverter controller
08/24/1999US5942835 Piezoelectric transformer drive circuit
08/24/1999US5942818 Control apparatus for engine-driven permanent magnet type synchronous generators
08/24/1999CA2192632C High voltage power supply
08/19/1999WO1999041830A1 Method and system for ride-through of an adjustable speed drive for voltage sags and short-term power interruptions
08/19/1999WO1999041828A1 Hybrid topology for multilevel power conversion
08/19/1999WO1999041827A1 High frequency power supply generator
08/19/1999WO1999041826A1 Pwm controller for use with open loop dc to ac converter
08/19/1999DE19805098A1 Schaltungsanordnung Circuitry
08/19/1999CA2320161A1 Pwm controller for use with open loop dc to ac converter
08/18/1999EP0935844A1 Voltage regulation scheme for power supply having a voltage-fed inverter
08/18/1999CN1226347A 电磁装置 Electromagnetic devices
08/18/1999CN1226099A Uninterruptible power supply apparatus
08/17/1999US5940286 Method for controlling the power to be transferred via a mains inverter
08/17/1999US5940285 Electrical circuit for converting electrical energy having capacitors and controller for maintaining a nominal charge on each capacitor
08/17/1999US5940280 Converter circuit of battery charger for electric vehicle
08/17/1999US5940272 Electric apparatus having heat radiating fin
08/17/1999US5939803 System for off-mains switching of current consuming devices such as actuators
08/12/1999WO1999040681A1 Circuit configuration
08/12/1999WO1999040676A1 A converter device
08/12/1999DE19904851A1 Uninterruptible power supply for supplying computers and other electronic data processing equipment
08/12/1999DE19805373A1 Circuit for mains stage for a primary clocked ac/dc mains stage, pref. for a TV receiver
08/11/1999CN2333118Y D. C. converting sine wave type a. c. source changover controller
08/11/1999CN2333116Y Single-phase multipurpose power source
08/11/1999CN1225758A Inverter system
08/11/1999CN1225757A Low stray interconnection inductance power converting module for converting DC voltage into AC voltage, and method therefor
08/11/1999CN1225753A Rotating electrical machine plant
08/11/1999CN1225743A 变压器/电抗器 Transformer / reactor
08/10/1999US5936857 Power converter having multiple output voltage capability
08/10/1999US5936854 Direct-current power supply system and air conditioner
08/10/1999US5936833 Converter modules having a busbar system for power semiconductor switches
08/10/1999US5936820 Overheating protection system of switching module
08/10/1999US5936514 In a process control system
08/05/1999WO1999039428A1 Power converter
08/05/1999DE19804015A1 Rectifier circuit
08/05/1999CA2318458A1 Power converter
08/04/1999EP0933979A1 High frequency power supply for lamps
08/04/1999EP0933867A1 Power converter module
08/04/1999EP0932930A1 Electronic power control having a switched-mode power supply
08/04/1999EP0932929A1 Active rectifier circuit
08/04/1999CN2332107Y Medium-frequency induction heating semi-control bridge current-mode inverter
08/04/1999CN2332106Y Energy-saving ferro-resonance type anti-interference AC voltage-stabilized source
08/04/1999CN1225203A Voltage multiplier with an output voltage practically independent of the supply voltage
08/04/1999CN1224947A Zero-switching loss switching voltage regulator
08/04/1999CN1224942A Non-contact power transmitting device
08/04/1999CN1044543C High voltage autoexcitation converting device used in connecting system
08/04/1999CN1044542C An AC/DC converter
08/03/1999US5933344 Microprocessor having timer circuit generating complementary non-overlapped PWM signals
08/03/1999US5933342 Rectifier with alternative path for freewheeling current
08/03/1999US5933341 Power converting apparatus
08/03/1999US5933339 Modular static power converter connected in a multi-level, multi-phase, multi-circuit configuration
08/03/1999US5933338 Dual coupled current doubler rectification circuit
08/03/1999US5933337 Voltage rectifying and smoothing circuit
08/03/1999US5932934 Circuit for the infinite direct or indirect variation of the direct and/or alternating current flowing through a load operated by a mains DC or AC voltage or an arbitrary combination thereof
07/1999
07/28/1999EP0932249A1 Converter
07/28/1999EP0932247A1 Power unit and voltage transformer
07/28/1999CN1224543A Power converter
07/27/1999US5930135 Heat sink apparatus and method for making the same
07/27/1999US5930131 Controlling device for conversion of DC power to sine wave AC power
07/27/1999US5930122 Inverter and DC power supply apparatus with inverter used therein
07/27/1999US5930112 Circuit board architecture for a motor controller
07/27/1999US5929690 Three-terminal power MOSFET switch for use as synchronous rectifier or voltage clamp
07/27/1999US5929665 Power converter with voltage drive switching device monitored by device parameters and electric parameters
07/27/1999US5929592 Apparatus for controlling driving signal for motor
07/27/1999US5929578 Control process in a motor driving control unit
07/27/1999US5929519 Semiconductor module including switching device chips and diode chips
07/27/1999CA2174684C Rectifier control system
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