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 3 - Conversion of dc power input into dc power output
Patents for H02M 3 - Conversion of dc power input into dc power output (54,461)
08/1999
08/24/1999US5943200 Peak voltage clamping circuit for high frequency boost converter and method of operation thereof
08/24/1999US5943103 Picture display apparatus with a cathode ray tube and a self-oscillating switched-mode power supply
08/24/1999US5942883 Circuit for supplying current
08/24/1999US5942858 Apparatus for supplying direct current pulses to an electrical load for improved efficiences
08/24/1999US5942835 Piezoelectric transformer drive circuit
08/24/1999US5942810 Regulation device and method for compensating variations in a supply voltage in a microwave transmitter
08/24/1999US5942134 Frequency-changing welding arrangement
08/19/1999WO1999041826A1 Pwm controller for use with open loop dc to ac converter
08/19/1999DE19805545A1 Voltage supply circuit e.g. for pulse-driven load, such as radio equipment amplifier
08/19/1999DE19805098A1 Schaltungsanordnung Circuitry
08/19/1999CA2320161A1 Pwm controller for use with open loop dc to ac converter
08/18/1999EP0936727A2 Self-oscillation type switching power supply apparatus
08/18/1999EP0936726A2 Schaltnetzteil mit Schwellwertschaltung
08/18/1999EP0936725A1 Improvement in a power supply
08/18/1999EP0936724A1 Voltage converter
08/18/1999EP0936525A1 Diode circuit with ideal diode characteristic curve
08/18/1999EP0935843A1 Low power stand-by for switched-mode power supply circuit with burst mode operation
08/18/1999EP0935540A1 Control unit for the power supply system on-board
08/18/1999CN1226103A Switched-mode power supply with threshold value circuit
08/17/1999US5940782 Method of calibrating a linear driver system
08/17/1999US5940287 Controller for a synchronous rectifier and power converter employing the same
08/17/1999US5940285 Electrical circuit for converting electrical energy having capacitors and controller for maintaining a nominal charge on each capacitor
08/17/1999US5940284 For converting a low input voltage to a high output voltage
08/17/1999US5940283 High voltage generating device having variable boosting capability according to magnitude of load
08/17/1999US5940281 Switched-mode power supply with magnetic flux density control
08/17/1999US5940280 Converter circuit of battery charger for electric vehicle
08/17/1999US5939871 DC/DC converter and controller therefor utilizing an output inductor current and input voltage
08/17/1999US5939866 Preregulated DC-to-DC converter
08/17/1999US5939818 In a longitudinal vibration tertiary mode
08/17/1999CA2202545C Switching power supply system and process
08/12/1999WO1999040681A1 Circuit configuration
08/12/1999WO1999040675A1 Switching voltage converter with synchronous rectification
08/11/1999EP0935333A2 Switching power supply apparatus
08/11/1999EP0935332A2 Self-oscillation switching power supply apparatus
08/11/1999EP0934623A1 A switched-mode power supply
08/11/1999EP0806074A4 Switching power supply apparatus and method
08/11/1999EP0795230B1 Switched-mode power supply with transformer and feedback via primary winding
08/11/1999EP0770281B1 Power supply apparatus comprising an improved limiter circuit
08/11/1999CN1225755A High voltage rotating electric machine having magnetic circuit, and method for mfg. same
08/10/1999US5936857 Power converter having multiple output voltage capability
08/10/1999US5936853 Power converter having a low-loss clamp and method of operation thereof
08/10/1999US5936852 Switched mode power supply with both main output voltage and auxiliary output voltage feedback
08/10/1999US5936851 Regulated resonant converter
08/10/1999US5936459 Internal potential generating circuit and boosted potential generating unit using pumping operation
08/10/1999US5936446 PWM variable voltage load driver with peak voltage limitation
08/05/1999WO1999039427A1 Flyback converter with limited output power
08/05/1999DE19804098A1 Heating device in car with the drive containing a traction battery
08/04/1999EP0933866A2 Switching power supply device
08/04/1999EP0933865A1 High efficiency DC/DC converter.
08/04/1999EP0933863A2 Electronic instrument
08/04/1999EP0933862A1 Power circuit
08/04/1999EP0933861A1 Power source circuit for generating positive and negative voltages
08/04/1999EP0932929A1 Active rectifier circuit
08/04/1999EP0932928A1 Voltage transformer
08/04/1999EP0932927A1 Control apparatus with reduced quiescent current
08/04/1999EP0932858A1 Hybrid regulator
08/04/1999EP0830661B1 Arrangement for the galvanically isolated transmission of auxiliary power (direct voltage) and information to an electronic unit
08/04/1999CN1225204A Oscillator voltage regulator
08/04/1999CN1225203A Voltage multiplier with an output voltage practically independent of the supply voltage
08/04/1999CN1224942A Non-contact power transmitting device
08/03/1999US5933453 Delta-sigma pulse width modulator control circuit
08/03/1999US5933343 Multi-deck power converter module
08/03/1999US5933340 Frequency controller with loosely coupled transformer having a shunt with a gap and method therefor
08/03/1999US5933336 Three-phase boost converter having multiple L-C branches and method of operation thereof
08/03/1999US5933334 Zero load device of power source
08/03/1999US5933333 Switching power supply apparatus
08/03/1999US5933332 Converter transformer
08/03/1999US5933331 Battery coupling apparatus
08/03/1999US5933049 Power-supply circuit with a transformer and an on/off switch at the secondary side of the transformer
08/03/1999US5933047 High voltage generating circuit for volatile semiconductor memories
08/03/1999US5932995 To provide reduced dc output voltage to positive/negative dc output terminal
08/03/1999US5932994 Solar cell power source device
08/03/1999US5932938 Switching power supply unit
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
08/03/1999CA2176061C A power converter and control system for a motor using an inductive load and method of doing the same
07/1999
07/30/1999CA2228357A1 Universal switching power supply
07/29/1999WO1999038247A1 Harnessing a back emf
07/29/1999WO1999038240A1 Automatic rate control for defibrillator capacitor charging
07/28/1999EP0932249A1 Converter
07/28/1999EP0932248A1 Method of harnessing a back-emf, and apparatus used in performing the method.
07/28/1999EP0932247A1 Power unit and voltage transformer
07/28/1999EP0931379A1 Triple well charge pump
07/28/1999CN1224542A High-voltage plants with electric motors
07/27/1999US5930124 Switching power supply
07/27/1999US5930123 Reset circuit for current transformer having a short reset interval
07/27/1999US5930122 Inverter and DC power supply apparatus with inverter used therein
07/27/1999US5929694 Semiconductor device having voltage generation circuit
07/27/1999US5929692 Ripple cancellation circuit with fast load response for switch mode voltage regulators with synchronous rectification
07/27/1999US5929690 Three-terminal power MOSFET switch for use as synchronous rectifier or voltage clamp
07/27/1999US5929666 Bootstrap circuit
07/27/1999US5929665 Power converter with voltage drive switching device monitored by device parameters and electric parameters
07/27/1999US5929615 Step-up/step-down voltage regulator using an MOS synchronous rectifier
07/27/1999US5929614 High efficiency DC step-up voltage converter
07/27/1999US5927699 Damping apparatus
07/27/1999CA2029209C Zero-current switching forward power conversion with controllable energy transfer
07/23/1999CA2227747A1 Buck regulator with plural outputs
07/22/1999DE19801848A1 Voltage converter with self-oscillating bridge circuit
07/21/1999EP0930690A2 Switched mode power supply
07/21/1999EP0929934A1 Merged transconductance amplifier
07/21/1999EP0929931A1 Power supply using synchronous rectification
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