| Patents for H02M 3 - Conversion of dc power input into dc power output (54,461) |
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| 04/30/1991 | US5012058 A microwave energy generating system |
| 04/24/1991 | EP0423226A1 Conversion circuit for limiting inrush current |
| 04/23/1991 | US5010468 Power-line-operated high frequency power supply |
| 04/23/1991 | US5010466 Resonant mode power supply with constant output voltage |
| 04/23/1991 | US5010291 Single quadrant chopper timing control circuit for discontinuous current |
| 04/23/1991 | US5010277 Electronic converter supplied by an alternating current distribution network |
| 04/23/1991 | US5010259 Voltage boosting circuit and operating method thereof |
| 04/18/1991 | WO1991005407A1 Dual mode high voltage coupler |
| 04/18/1991 | WO1991005402A1 Power controller with low standby current drain |
| 04/18/1991 | WO1991005400A1 Circuit for operating high-load ohmic power users |
| 04/17/1991 | EP0422274A1 Control method for push-pull series resonant switching power supplies with output voltage regulation |
| 04/16/1991 | US5008799 Back-to-back capacitor charge pumps |
| 04/16/1991 | US5008796 Apparatus and method for improving load regulation in switching power supplies |
| 04/16/1991 | US5008795 Switched capacitor interleaved forward power converter |
| 04/16/1991 | US5008794 Regulated flyback converter with spike suppressing coupled inductors |
| 04/16/1991 | US5007993 Electrolytic processing apparatus and method with time multiplexed power supply |
| 04/16/1991 | CA1283166C Flyback power supply |
| 04/10/1991 | EP0421245A2 Direct voltage transformer |
| 04/10/1991 | EP0420997A1 Circuit arrangement for a flyback switching power supply |
| 04/10/1991 | CN1050651A Power controller with low standby current drain |
| 04/09/1991 | US5006974 On-chip high voltage generator and regulator in an integrated circuit |
| 04/09/1991 | US5006972 Sea water battery power converter |
| 04/09/1991 | US5006782 Cascaded buck converter circuit with reduced power loss |
| 04/04/1991 | WO1991004605A1 Combinatorial circuit component |
| 04/03/1991 | EP0420074A1 Multiple output switching power supply having one controlled output voltage and load compensation |
| 04/03/1991 | EP0419728A1 Circuit arrangement for a fixed frequency flyback switching power supply |
| 04/03/1991 | EP0419727A1 Circuit arrangement for a regulated flyback switching power supply |
| 04/03/1991 | EP0419726A1 Circuit arrangement for a switching power supply |
| 04/03/1991 | EP0419724A1 Circuit arrangement for a flyback switching power supply |
| 04/02/1991 | US5005112 Regulated D.C.-D.C. power converter having multiple D.C. outputs |
| 03/28/1991 | DE3930752A1 Pulsed power source providing stabilised DC outputs - has pulse width modulated transformer control with load referencing circuit and transducer regulating voltage |
| 03/27/1991 | EP0418492A2 Switching power supply |
| 03/27/1991 | EP0418408A1 Method and circuit arrangement for controlling a semiconductor switch by using an inductive transformer |
| 03/27/1991 | EP0418221A1 Combined secondary circuit regulator |
| 03/27/1991 | CN2074079U High-frequency switch-capacitor inverter |
| 03/26/1991 | US5003456 Circuit for providing fast output current control in a current mode switching power supply |
| 03/26/1991 | US5003454 Power supply with improved power factor correction |
| 03/26/1991 | US5003451 Switched damper circuit for dc to dc power converters |
| 03/26/1991 | CA2011994A1 Power controller with low standby current drain |
| 03/21/1991 | WO1991003870A1 Power supply control apparatus of inductance load |
| 03/21/1991 | WO1991003234A1 Drug containing matrix |
| 03/20/1991 | EP0417076A1 Combined secondary circuit regulator |
| 03/19/1991 | US5001620 Power factor improvement |
| 03/19/1991 | US5001618 Ripple insensitivity method for regulating the voltage of a voltage signal |
| 03/19/1991 | US5001413 Method of operating a switching regulator and apparatus therefor |
| 03/19/1991 | US5001318 High frequency heating apparatus with abnormal condition detection |
| 03/14/1991 | DE3927734A1 Rectifier circuit for high blocking voltage - has FET control stage operating to provide high voltage operation with low losses |
| 03/13/1991 | EP0416721A1 Power source means |
| 03/13/1991 | EP0416154A1 Circuit arrangement for raising the output voltage of an electronic switching stage |
| 03/13/1991 | EP0415923A1 High efficiency converter. |
| 03/13/1991 | EP0231204B1 Back bias generator |
| 03/13/1991 | CN2073190U 55ov/24v(12v) switching contravariant power supply |
| 03/12/1991 | US4999761 Integrated dual charge pump power supply and RS-232 transmitter/receiver |
| 03/12/1991 | US4999760 High voltage rectifier and associated control electronics |
| 03/12/1991 | US4999759 Multiple output switching power supply having one controlled output voltage and load compensation |
| 03/12/1991 | US4999568 Switching power supply comprising pair of converters for obtaining constant or sinusoidal input current and fixed or variable output voltage |
| 03/12/1991 | US4999566 Current converter comprising current responsive, self oscillating, switching regulator |
| 03/12/1991 | CA1281375C Digital power converter input current control circuit |
| 03/07/1991 | WO1991003099A1 Compressed powder medicaments |
| 03/06/1991 | EP0415244A2 Adaptive compensating ramp generator for current-mode DC/DC converters |
| 02/27/1991 | EP0414465A2 Step-up and step-down chopper device |
| 02/26/1991 | US4996638 Method of feedback regulating a flyback power converter |
| 02/20/1991 | EP0413514A2 Load compensating gain control for a series resonant inverter |
| 02/20/1991 | CN2071847U Constant shunting ratio shunt dc transducer |
| 02/19/1991 | US4995069 X-ray tube apparatus with protective resistors |
| 02/19/1991 | US4994955 Half-bridge driver which is insensitive to common mode currents |
| 02/19/1991 | US4994952 Low-noise switching power supply having variable reluctance transformer |
| 02/14/1991 | DE4024160A1 DC level controller with antiphase clocked switch pairs - performs two-term control of inductive load current maintained at desired value by selective switching circuit |
| 02/14/1991 | DE3925625A1 Clocked constant-power source esp. for timing relay - has output MOSFET switch protected by bipolar transistor for provision of load current via storage inductor |
| 02/12/1991 | US4992924 Switching |
| 02/12/1991 | US4992921 Circuit arrangement for supplying a load |
| 02/12/1991 | US4992919 Parallel resonant converter with zero voltage switching |
| 02/12/1991 | US4992672 Dual or single voltage vehicular power supply with improved switch driver and load pump |
| 02/12/1991 | CA1280204C Regulating power supply for video display apparatus |
| 02/06/1991 | EP0411147A1 Circuit for protecting switching regulator |
| 02/05/1991 | US4991075 Low-switching loss DC-DC converter |
| 01/31/1991 | DE3924398A1 DC supply unit with fast response and freedom from transients - uses pulse width control of multiple DC sources connected in series and smoothed |
| 01/30/1991 | EP0410866A1 Multioutput power converter |
| 01/30/1991 | EP0410526A1 Generator for generating an electric voltage |
| 01/30/1991 | EP0410128A2 Superconductive voltage stabilizer |
| 01/30/1991 | CN2070513U Fixed voltage dividing rate series connection ac convertor |
| 01/29/1991 | US4988942 Switched resistor regulator control when transfer function includes discontinuity |
| 01/24/1991 | DE3923311A1 Electronic converter for DC=DC or AC-AC working - has double quadrant converter and push-pull electronic switches |
| 01/22/1991 | US4987525 Switching power supply |
| 01/22/1991 | US4987361 Switching regulator having a constant current through its inductance |
| 01/17/1991 | DE3921955A1 Prodn. of load-dependent signal for switching regulator - comparing output voltage passed by logic gate when current signal exceeds sawtooth amplitude |
| 01/16/1991 | EP0408253A2 Converters and the control thereof |
| 01/16/1991 | EP0408121A2 Circuit arrangement |
| 01/16/1991 | EP0407691A1 Method for current limitation in a push-pull DC-DC converter |
| 01/15/1991 | US4985821 Indirect current sensing of DC to DC converters |
| 01/15/1991 | US4985818 DC voltage converter with formation of the actual current value |
| 01/15/1991 | CA1279097C Power supply having on-off control |
| 01/13/1991 | CA2012811A1 Resonant inverter with improved control |
| 01/11/1991 | CA2020767A1 Circuit arrangement |
| 01/10/1991 | WO1991000644A1 Ac to dc converter with unity power factor |
| 01/10/1991 | WO1991000643A1 Ac/dc conversion with reduced supply waveform distortion |
| 01/10/1991 | WO1991000380A1 Electrolytic processing apparatus and method with time multiplexed power supply |
| 01/09/1991 | EP0407170A2 Charge pump |
| 01/09/1991 | EP0406285A1 Circuit arrangement for monitoring the duty cycle of a transistor |
| 01/09/1991 | EP0232316B1 Floating battery feed circuit using multifilar transformer |