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)
10/1999
10/28/1999WO1999054940A1 Composite semiconductor device
10/28/1999WO1999054937A1 Method of designing power supply circuit and semiconductor chip
10/28/1999DE19822130C1 Method for controlling an electric arc welding set for pulsed-current welding
10/28/1999DE19817336A1 Short circuit detector arrangement for static converter bridge
10/27/1999EP0952455A1 High frequency track&hold full wave rectifier
10/27/1999CN2346117Y Power supplier special for personal digital processing device
10/26/1999US5973946 Power-factor improvement converter
10/26/1999US5973937 Switching power supply circuit of current-resonance type without a choke coil
10/26/1999US5973491 System interconnection generator
10/26/1999US5973489 Expanded input voltage range for switch-mode power supply in broadband network
10/21/1999WO1999053602A1 Power converter with actively controllable commutation
10/21/1999DE19817305A1 Converter and method of controlling it for supplying an oscillatory circuit
10/21/1999DE19816606A1 Power converter with actively controlled commutation
10/20/1999EP0951208A2 Servo amplifier unit
10/20/1999EP0951135A2 Electric power tool with separated power supply
10/20/1999EP0951133A2 Method and active filter for reducing ripple of a current drawn by a charge from a network
10/20/1999CN1232581A Improved current control process and device for voltage converter
10/20/1999CN1232313A Double phase change inverter circuit
10/20/1999CN1045851C Supply circuit of two-wire wide phase angle light and speed regulating controller
10/19/1999US5969964 Resistor in series with bootstrap diode for monolithic gate driver device
10/19/1999US5969963 Power converting device supplying AC voltage of a continuous wave form
10/19/1999US5969962 Low line harmonic AC to DC power supply
10/19/1999US5969960 Electronic circuit for converting electrical energy having a corrective, collective control means
10/19/1999US5969959 Converter circuit arrangement with protection circuit
10/19/1999US5969958 Method for measuring phase currents in an inverter
10/19/1999CA2217121C Resonant switching power supply circuit
10/14/1999WO1999052158A1 Pulse frequency modulation drive circuit for piezoelectric transformer
10/14/1999DE19916020A1 Power supply circuit structure
10/13/1999EP0949752A1 Capacitor bank, power electronic device comprising such a bank and power electronic assembly comprising such device
10/13/1999EP0948836A1 Device for powering an ozonizer
10/13/1999CN2343711Y Transistor bridge-type inverter with staight-through state inhibiting function
10/13/1999CN2343710Y Adjustable voltage-stabilized source
10/12/1999US5966425 Apparatus and method for automatic X-ray control
10/12/1999US5965839 Power device
10/12/1999US5965038 Control equipment for resistance welding machine
10/12/1999CA2057991C Improvements in or relating to apparatus for and/or methods of supplying power to a load
10/06/1999EP0948244A2 A self ballasted fluorescent lamp and lighting fixture
10/06/1999EP0948123A1 Protecting method for inrush current preventing resistor
10/06/1999EP0947904A2 AC power supply using sunlight
10/06/1999EP0713614B1 Power supply comprising means for improving the power factor
10/06/1999CN2342514Y Bleeder rectifier circuit for blower
10/06/1999CN2342513Y Multipurpose power source
10/06/1999CN1230708A Power supply unit
10/05/1999US5963443 Power circuit for driving a capacitive load
10/05/1999US5963442 Inverter system for driving motor
10/05/1999US5963441 Alternating current rectifier bridge and system for measuring average current per bridge segment
10/05/1999US5963440 Controlled three-phase rectifier with current comparison between rectifier segments
10/05/1999US5963436 Switching power supply apparatus and controlling method for the same
10/05/1999US5963066 Semiconductor device which drives low-voltage driven switching device, using low-voltage direct current power source, a diode and a capacitor
10/05/1999US5962996 Inverter apparatus
10/05/1999US5962985 DC/AC converter with improved starter circuit
10/05/1999CA2193593C Control system for power conversion system
10/05/1999CA2193269C Npc inverter control system
10/05/1999CA2170317C Control process for bidirectional current and inverter
10/05/1999CA2153111C Air conditioning device
09/1999
09/30/1999WO1999049560A1 Power supply
09/30/1999DE19813363A1 Verfahren zur indirekten Bestimmung der Ausgangsspannung eines Zweipunkt-Wechselrichters Method for the indirect determination of the output voltage of a two-level inverter
09/30/1999DE19813362A1 Verfahren zur Bestimmung der Ausgangsspannung eines Zweipunkt-Wechselrichters Method for determining the output voltage of a two-level inverter
09/30/1999DE19812736A1 Power pack for electrical apparatus
09/30/1999DE19812069A1 Power amplifier esp. gradient amplifier of magnetic resonance imaging tomograph
09/29/1999EP0945972A1 Inverter driving method
09/29/1999EP0945971A2 Multi-level phase drivers and static power converters
09/29/1999EP0945970A2 Method for determining the output voltage of a two-level inverter
09/29/1999EP0945956A2 Method for the indirect determination of the output voltage of a two-point inverter
09/29/1999EP0755583B1 Installation for transmission of electric power by means of high-voltage direct current
09/29/1999CN2341320Y Large power supply converter
09/29/1999CN1230307A Power inverter with reduced switching frequency
09/28/1999US5959858 Electric power conversion apparatus
09/28/1999US5959857 Power supply apparatus for producing a constant DC voltage from a range of AC inputs
09/28/1999US5959855 Voltage control with feedback utilizing analog and digital control signals
09/28/1999US5959418 Motor with electronic distributing configuration
09/28/1999US5959412 Inverter circuit for discharge tube having impedance matching circuit
09/28/1999US5959410 Charge pump power factor correction circuit for power supply for gas discharge lamp
09/28/1999CA2167494C Dc voltage regulation circuit
09/23/1999DE19808018C1 Controlling Rectifier system connected to mains across circuit breaker and transformer and each rectifier has controllable semiconductor switches in bridge circuit
09/22/1999EP0944163A1 Structure for industrial realisation of a multilevel converter
09/22/1999EP0943123A1 Modular high power modulator
09/22/1999CN1229537A Inverter driving method
09/22/1999CN1229305A Control device of transducer
09/22/1999CN1045235C Neutral point clamped electric power conversion apparatus
09/21/1999US5956244 Controlling currents in parallel AC/DC converters
09/21/1999US5956243 Three-level boost rectifier with voltage doubling switch
09/21/1999US5956231 Semiconductor device having power semiconductor elements
09/21/1999US5955862 Frequency converter for AC motor
09/16/1999DE19810321A1 Current and charge regulation method for capacitive load e.g. piezoactuator operating in kHz range
09/15/1999EP0942518A2 A power supply apparatus
09/15/1999CN1228883A Power supply device
09/15/1999CN1228882A Power pad/power delivery system
09/15/1999CN1045142C Device for detecting fault of dc-to-ac converter system
09/14/1999US5953224 Control circuit for cryogenically-cooled power electronics employed in power conversion systems
09/14/1999US5953222 Neutral point clamped converter
09/14/1999US5953220 System and method for zero phase error tracking of reference in PWM inverters
09/14/1999US5952855 Circuit with multiple output voltages for multiple analog to digital converters
09/14/1999US5952812 AC-DC power converting device
09/14/1999US5951785 Photo-voltaic apparatus
09/09/1999DE19808890A1 Switched network with active surface wave limitation for supplying stabilized voltage for DC load e.g. fluorescent lamp
09/09/1999DE19808104A1 Control apparatus for inverter used in driving e.g. electric motor
09/09/1999DE19807472A1 Vorrichtung zum Ansteuern von Wechselrichtern Device for driving inverters
09/08/1999EP0940907A1 Power supply for mains operated electronic devices, in particular for electric meters and/or remote control receivers, for generating at least a DC voltage with an integral predefined capacity
09/08/1999CN2337714Y AC-DC power converter
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