| Patents for H02M 3 - Conversion of dc power input into dc power output (54,461) |
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| 08/25/1993 | EP0478612B1 Circuit network |
| 08/25/1993 | CN2141146Y Dynamic frequency and current converter |
| 08/24/1993 | US5239453 DC to DC converter employing a free-running single stage blocking oscillator |
| 08/18/1993 | EP0556134A2 Control device for regulating current intensity in a load |
| 08/18/1993 | EP0555887A1 Piezoelectric transformer and method for driving the same |
| 08/18/1993 | EP0555432A1 Electronic device for converting electrical energy. |
| 08/17/1993 | US5237606 Enhanced synchronous rectifier |
| 08/17/1993 | US5237492 AC to DC converter system with ripple feedback circuit |
| 08/17/1993 | US5237484 Apparatus for cooling a plurality of electronic modules |
| 08/17/1993 | US5237262 Temperature compensated circuit for controlling load current |
| 08/17/1993 | US5237261 Voltage step up regulator |
| 08/17/1993 | US5237209 Bipolar voltage doubler circuit |
| 08/15/1993 | CA2087453A1 Device for regulating current intensity in a receiver |
| 08/12/1993 | DE4203257A1 Circuit generating approximately rectangular AC voltage - has two controllable, periodical changeover switches, both in specified connection. |
| 08/11/1993 | EP0554903A2 Snubber energy recovery circuit for protecting switching devices from voltage and current |
| 08/11/1993 | EP0554883A2 Power transistor drive circuit |
| 08/11/1993 | EP0554882A1 Linear load circuit to control switching power supplies under minimum load conditions |
| 08/11/1993 | EP0554557A2 Method for driving power converters |
| 08/10/1993 | US5235504 High power-factor converter for motor drives and power supplies |
| 08/10/1993 | US5235502 Zero current switching forward power conversion apparatus and method with controllable energy transfer |
| 08/10/1993 | US5235501 High efficiency voltage converter |
| 08/10/1993 | US5235254 Fluorescent lamp supply circuit |
| 08/05/1993 | WO1993015548A1 Current control switching circuit with current decrease prediction |
| 08/05/1993 | WO1993015539A1 Device for providing electric power from a signal transmitter |
| 08/05/1993 | DE4202575A1 Integrated circuit for supplying power to transistor, LED, logic gates etc. - has two terminal pins and constant current source controlled by switches, e.g. timer, oscillator and current source |
| 08/04/1993 | EP0553867A2 Drive circuit for electronic device |
| 08/04/1993 | CA2088635A1 Method for controlling rectifiers |
| 08/03/1993 | US5233508 Dc/dc voltage converting device |
| 08/03/1993 | US5233287 Current limiting bilateral converter having a ground referenced current sensor |
| 08/03/1993 | US5233286 Hybrid 270 volt DC system |
| 07/29/1993 | DE4201744A1 Extra circuit for LV halogen lamp adaptor - carries out forced interruption of oscillation at end of each mains half-wave |
| 07/28/1993 | EP0376994B1 Device for producing a magnetic field in an atomic absorption spectrometer |
| 07/27/1993 | US5231563 Square wave converter having an improved zero voltage switching operation |
| 07/27/1993 | US5230280 Gas fired donut system |
| 07/22/1993 | WO1993014556A1 Integrated magnetic power converter |
| 07/22/1993 | WO1993014555A1 Feedback circuit for cmos high voltage generator to program (e)eprom-memory cells |
| 07/22/1993 | WO1993014554A1 High voltage generator having output current control |
| 07/22/1993 | WO1993012577A3 Dc-to-dc converter |
| 07/22/1993 | CA2127995A1 High voltage generator having output current control |
| 07/22/1993 | CA2127803A1 Feedback circuit for cmos high voltage generator to program (e)eprom-memory cells |
| 07/21/1993 | CN2138856Y DC transformer |
| 07/20/1993 | US5229928 Converter input/output voltage balancing control |
| 07/20/1993 | US5229707 Apparatus and method for eliminating false current limit triggering in a grounded source-emitter power switching circuit |
| 07/14/1993 | EP0551212A2 Switching power source device |
| 07/13/1993 | US5227964 Switching power supply with overcurrent protection circuit |
| 07/13/1993 | US5227961 Symmetrical delay circuit |
| 07/13/1993 | US5227941 Protective circuit for diode switching device |
| 07/13/1993 | US5227675 Voltage generator for a semiconductor integrated circuit |
| 07/13/1993 | US5227672 Digital clock selection and changeover apparatus |
| 07/07/1993 | EP0550167A2 High-band width point-of-load power supply |
| 07/07/1993 | EP0549920A1 Rectification system for non-resonant voltage switched converters |
| 07/07/1993 | EP0451154A4 High voltage power supply control system |
| 07/06/1993 | US5225972 Power source |
| 07/06/1993 | US5225751 Power supply circuit for a motor |
| 07/01/1993 | DE4243943A1 AC rectifier including voltage-dropping DC=DC converter - restricts duration of flow of DC from bridge rectifier into prim. winding of transistor-switched transformer |
| 07/01/1993 | DE4243907A1 Back bias voltage generating circuit for CMOS semiconductor device - has oscillator circuit delivering control signals for pair of pumping stages in parallel |
| 06/29/1993 | US5224027 Power supply apparatus for magnetron driving |
| 06/29/1993 | US5224026 Alternatable constant current circuit |
| 06/29/1993 | US5224025 Forward converter with two active switches and unity power factor capability |
| 06/29/1993 | US5223779 High efficiency switching circuit for transferring energy stored within a snubbing circuit to an electrical load |
| 06/29/1993 | US5223749 Charging circuit |
| 06/24/1993 | WO1993012577A2 Dc-to-dc converter |
| 06/24/1993 | DE4219958C1 Ballast circuit for discharge lamp - uses phase gate control to short out electrodes for interval in each half cycle, depending on brightness |
| 06/24/1993 | DE4142007A1 Data and speech transmission system using 4-wire telephone cable - has respective line wire pairs for transmission of speech and data signal in opposite directions between speech points and exchange |
| 06/23/1993 | EP0547916A2 A voltage regulator control circuit |
| 06/23/1993 | EP0547803A2 Voltage multiplier |
| 06/16/1993 | EP0546652A1 Electric power unit |
| 06/16/1993 | CN1021270C Switch type power supply with protective arrangement for limiting output voltage |
| 06/15/1993 | US5220492 Inverter and power supply systems including same |
| 06/15/1993 | US5220272 Switching regulator with asymmetrical feedback amplifier and method |
| 06/15/1993 | US5220271 Cross regulator for a multiple output power supply |
| 06/15/1993 | US5220204 Voltage and temperature compensated emitter-follower driver |
| 06/10/1993 | WO1993011609A1 Switchable polarity bipolar generator with galvanic isolation |
| 06/10/1993 | WO1993011601A1 Multiresonant self-oscillating converter circuit |
| 06/09/1993 | EP0545266A2 Semiconductor integrated circuit |
| 06/09/1993 | CN2135871Y Large-power dc/dc converting power device |
| 06/09/1993 | CN1073062A Mixed signal processing system and method for powering same |
| 06/09/1993 | CN1021188C Power supply for magnetron |
| 06/08/1993 | US5218522 D.C. chopper regulating method and apparatus incorporating bilateral regulating voltage path |
| 06/08/1993 | US5218521 Method and device for protecting an electrical converter circuit against overload |
| 06/08/1993 | US5218272 Solid state electronic ballast system for fluorescent lamps |
| 06/02/1993 | CN1021096C Power supply circuit |
| 06/02/1993 | CN1021095C Power supply circuit |
| 06/01/1993 | US5216588 Charge pump with high output current |
| 06/01/1993 | US5216586 Power supply start-up circuit |
| 06/01/1993 | US5216585 Switching power source device |
| 06/01/1993 | US5216353 DC power device |
| 06/01/1993 | US5216351 Cascaded switching and series regulators |
| 06/01/1993 | US5216349 Driving circuit for a switching element including an improved power supply arrangement |
| 05/27/1993 | DE4139720C1 Pulse-width modulating circuitry e.g. for controlling motor vehicle solenoid valves - has comparator blocking switching transistor when voltage on capacitor is below reference value but otherwise makes conductive |
| 05/26/1993 | EP0543747A2 Half bridge converter with current mode controller |
| 05/26/1993 | EP0406277B1 Automatically guided push-pull inverter |
| 05/25/1993 | US5214358 Motor vehicles |
| 05/25/1993 | US5214322 High voltage cmos power driver |
| 05/25/1993 | US5214313 Circuit for extending the useful discharge time of load driving capacitors |
| 05/25/1993 | CA1318349C Series resonant power converter and method of controlling the same |
| 05/19/1993 | EP0542197A2 Method of controlling switching regulator |
| 05/19/1993 | EP0541909A1 Discharge lamp driving circuit |
| 05/19/1993 | CN1072278A Plus-minus symmetrical output universal regulated power supply |
| 05/13/1993 | WO1993009592A1 Regulator for pumped voltage generator |