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 1 - Details of apparatus for conversion
Patents for H02M 1 - Details of apparatus for conversion (33,954)
11/1998
11/17/1998US5838181 Pulse-width modulator circuit for use in low-cost power factor correction circuit
11/17/1998US5838145 Transient load corrector for switching converters
11/11/1998EP0877470A2 Method and device for power control of an electric load connected to an AC supply network
11/11/1998EP0877467A1 Device for reducing the ripple component of the signal fed to a load by a switch mode power amplifier
11/11/1998CN1040715C Switch mode power supply with reduced input current distortion
11/10/1998US5835369 Power factor and crest factor circuit
11/10/1998US5835368 Power-factor improvement converter
11/10/1998US5835361 Switch-mode power supply with over-current protection
11/10/1998US5834826 Protection against adverse parasitic effects in junction-isolated integrated circuits
11/05/1998WO1998049766A1 Switched-mode power supply having an improved start-up circuit
11/05/1998WO1998049607A1 Dc-to-dc converter with set point voltage control of the output voltage
11/04/1998CN1040599C Power supply device
11/03/1998US5831846 Dual mode boost converter and method of operation thereof
11/03/1998US5831843 Pulse width modulation device for converting direct voltage into a three-phase alternating voltage
11/03/1998US5831842 Active common mode canceler
11/03/1998US5831473 Reference voltage generating circuit capable of suppressing spurious voltage
10/1998
10/29/1998WO1998048506A1 Neutral-point inverter
10/29/1998DE19813187A1 Power supply for high frequency voltage
10/28/1998EP0874447A2 Low inductance power converter
10/28/1998EP0732002B1 Rectifier bridge apparatus
10/27/1998US5828562 Double discharge circuit for improving the power factor
10/27/1998US5828559 For providing stress relief for a switching element
10/27/1998US5828558 PWN controller use with open loop flyback type DC to AC converter
10/23/1998CA2234017A1 Low-inductance converter
10/22/1998WO1998047218A1 Switch-mode power supply with over-current protection
10/22/1998DE19715259A1 Voltage converter for electronic bias circuit for gas discharge lamp
10/21/1998EP0872010A1 Device and method of supplying from an ac source
10/21/1998CN1196602A Circuit for attenuating harmonic wave currents
10/20/1998US5825639 DC bus capacitor arrangement
10/20/1998US5825638 Switched-mode power supply control circuit
10/20/1998US5825163 DC-to-DC converter with low supply voltage
10/20/1998US5825103 For supplying an output voltage
10/20/1998US5824990 Power selection and protection circuit for inverter power supply
10/15/1998WO1998045930A2 Switched-mode power supply with regulation of line current consumption
10/15/1998DE19809749A1 Bias device for low pressure gas discharge lamp high frequency operation
10/15/1998DE19713814A1 Schaltnetzteil Switching power supply
10/14/1998CN1040272C 逆变装置 Inverter device
10/13/1998US5822203 Method and device for limiting the current surge in a capacitor associated with a rectifier
10/13/1998US5822198 Single stage power converter and method of operation thereof
10/13/1998US5821740 For supplying power to a load from a source
10/13/1998US5821703 Data distribution in lighting systems
10/08/1998WO1998044764A1 Power supply system for a group of lamps
10/08/1998DE19731691C1 Switched power amplifier for NMR imager
10/08/1998CA2284892A1 Power supply system for a group of lamps
10/07/1998EP0869605A2 Method of reducing retroactive effects on the profile of the current drawn from a network by inductive loads and motor drive device using this method
10/07/1998EP0869603A2 Regulating circuit
10/07/1998CN1195222A Regulating circuit
10/06/1998US5818705 Portable computer having built-in AC adapter incorporating a space efficient electromagnetic interference filter
10/06/1998US5818703 DC/DC converter for a variable voltage load
10/06/1998US5818675 Protection device for electronic circuits
10/06/1998US5818670 Switching mode power supply with protection function against overcurrent and overvoltage
10/06/1998US5818669 Zener diode power dissipation limiting circuit
10/06/1998US5818281 Semiconductor circuit having turn-on prevention capability of switching semiconductor device during off cycle thereof by undesired transient voltages
10/01/1998WO1998043350A1 Control device for producing hard turn-on pulses for a gate turn-off thyristor
10/01/1998WO1998043345A1 Power converter
10/01/1998WO1998043343A1 Circuit
10/01/1998DE19748465A1 Low power power supply
10/01/1998DE19711771A1 Switching power supply especially for video recorder
09/1998
09/30/1998EP0868015A1 A device for converting direct voltage into a three-phase alternating voltage through pulse width modulation
09/30/1998EP0868014A1 A high voltage converter circuit
09/30/1998EP0867999A1 A method and a device for detecting and handling short-circuit phenomena for power semiconductor devices
09/30/1998EP0867730A1 Method and device for compensating variations in a supply voltage
09/30/1998EP0715779B1 Circuit arrangement
09/30/1998CN1194493A Power supply device
09/29/1998US5815386 Snubber for zero current switched networks
09/29/1998US5815383 High voltage start-up circuit and method therefor
09/29/1998US5815373 Coupling device presenting and/or dominating a capacitance belonging to a board with a printed circuit
09/29/1998US5815015 Synchronization and shutdown circuits and methods in high-speed switching regulator drive circuits
09/29/1998US5814901 Electrical power distribution circuit
09/24/1998WO1998042165A1 Ballast method and apparatus and coupling therefor
09/24/1998DE19710319A1 Schaltung zum Sperren einer Halbleiterschaltvorrichtung bei Überstrom Circuit for blocking a semiconductor switching device for overcurrent
09/24/1998CA2286972A1 Ballast method and apparatus and coupling therefor
09/23/1998CN1193839A 电源装置和放电灯点灯装置 The power supply device and a discharge lamp lighting device
09/22/1998US5812385 Quickly restartable power supply apparatus
09/22/1998US5812384 Matrix filters for low-noise power distribution systems
09/22/1998CA2135027C Semiconductor stack
09/17/1998WO1998040946A1 Circuit for blocking a semiconductor switching device on overcurrent
09/15/1998US5808882 Three-phase bridge rectifier
09/15/1998US5808880 Power factor controller for active converter
09/15/1998US5808879 Half-bridge zero-voltage-switched PWM flyback DC/DC converter
09/15/1998US5808504 Insulated gate transistor drive circuit
09/15/1998US5808421 Ballast circuit having dual voltage source and emergency battery
09/11/1998WO1998021924A3 Control equipment for an active filter
09/09/1998EP0862810A2 Drive unit for an electric door
09/08/1998US5805439 DC-to-DC auto switch circuit
09/08/1998US5805434 Control of stored magnetic energy in power converter transformers
09/08/1998US5805432 Resonant DC-DC converter capable of controlling by pulse width modulation
09/08/1998US5804953 Power converter for converting AC shore power to shipboard use
09/08/1998US5804951 Power factor correction circuit
09/08/1998US5804950 Input current modulation for power factor correction
09/03/1998DE19710371C1 Circuit arrangement for charging of DC voltage intermediate circuits via rectifier e.g.for static converters
09/01/1998US5801935 Digital power factor correction circuit
09/01/1998US5801931 DC power source apparatus that suppresses harmonics
09/01/1998US5801557 High voltage drivers which avoid -Vs failure modes
09/01/1998US5801460 Electrical power transmitting system with reduced feeder size and method of operation
08/1998
08/26/1998EP0636284B1 Power supply
08/25/1998US5798915 Progressive start-up charge pump and method therefor
08/25/1998US5798914 Power factor of a rectified power supply
08/25/1998US5798635 One pin error amplifier and switched soft-start for an eight pin PFC-PWM combination integrated circuit converter controller
08/18/1998US5796598 Voltage-converting circuit for the power supply of an electrical consumer of high output, particularly a bobbin winding machine
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