| Patents for H02M 3 - Conversion of dc power input into dc power output (54,461) |
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| 01/09/1991 | CN1048468A Large-power nc voltage-regulating converter |
| 01/09/1991 | CN1011171B Switched-mode power supply circuit including a power switch |
| 01/09/1991 | CN1011170B Electric converter |
| 01/09/1991 | CN1011169B Transistor dc voltage conversion circuit |
| 01/08/1991 | US4984148 Two-phase bang-bang current control synchronizer |
| 01/08/1991 | US4984146 Suppression of radiated EMI for power supplies |
| 01/08/1991 | US4984145 Circuit arrangement for free-running blocking-oscillator type switched power pack |
| 01/03/1991 | DE3920235A1 Schaltnetzteil Switching power supply |
| 01/02/1991 | EP0405009A2 Integrated voltage multiplier for a low-voltage supply |
| 01/02/1991 | EP0404996A1 Converter presenting an actual current value |
| 01/02/1991 | EP0404993A1 Current limiting DC converter |
| 01/01/1991 | US4982443 Instantaneous voltage drop detector for DC power source |
| 01/01/1991 | US4982318 DC power supply having bipolar outputs |
| 01/01/1991 | US4982317 Integrated voltage multiplier circuit for low supply voltage |
| 01/01/1991 | US4982315 Voltage multiplier circuit |
| 01/01/1991 | US4982314 Power source circuit apparatus for electro-luminescence device |
| 01/01/1991 | US4982306 Method of limiting starting current in a DC converter and device for performing the method |
| 01/01/1991 | US4982149 Electric supply apparatus having means for correcting supply voltage fluctuations |
| 12/27/1990 | WO1990016110A1 Circuit network |
| 12/27/1990 | WO1990016106A1 Switching power source device and adapter for the switching power source device |
| 12/27/1990 | EP0404205A1 Composition for noninvasive administration of sedatives and analgesics |
| 12/27/1990 | EP0404191A2 Switching power supply device |
| 12/27/1990 | EP0404125A2 Booster circuit |
| 12/27/1990 | EP0404124A2 Charge pump having pull-up circuit operating with two clock pulse sequences |
| 12/27/1990 | EP0403823A1 Plural Stage Voltage Booster Circuit With Efficient Electric Charge Transfer Between Successive Stages |
| 12/27/1990 | CA1278339C Inductor current control circuit |
| 12/26/1990 | CN1048122A Internal voltage transducer of semiconductor integrated circuit |
| 12/25/1990 | US4980813 Current fed push pull power converter |
| 12/25/1990 | US4980811 Power source apparatus |
| 12/25/1990 | US4980810 VHF DC-DC power supply operating at frequencies greater than 50 MHz |
| 12/25/1990 | US4980576 Inductance and capacitance charge pump circuit for driving power MOS transistor bridges |
| 12/20/1990 | DE4006306A1 Innerer spannungswandler in einer integrierten halbleiterschaltung Internal voltage converter in an integrated semiconductor circuit |
| 12/19/1990 | EP0403088A2 Improvements relating to DC-DC converters |
| 12/19/1990 | EP0402928A2 Circuit for internal current limiting in a fast high side power switch |
| 12/19/1990 | EP0402395A1 Voltage converter |
| 12/19/1990 | CN1047954A 开关式电源 Switching Power Supplies |
| 12/19/1990 | CN1047944A Switch capacitor isolated dc transducer |
| 12/18/1990 | US4979088 Integrated high voltage generating system |
| 12/18/1990 | US4978867 Integrated circuit with on-chip voltage converter |
| 12/18/1990 | CA1278037C Switched power supply |
| 12/13/1990 | WO1990015470A1 Dc-to-dc converter using relay coil |
| 12/12/1990 | EP0401931A1 Switch mode power supply |
| 12/12/1990 | EP0401287A1 Power-operated device with a cooling facility. |
| 12/12/1990 | EP0370102A4 High frequency matrix transformer |
| 12/12/1990 | CN1047776A Switch-mode power supply with burst mode standby operation |
| 12/11/1990 | US4977493 Efficient snubber for rectifier circuits |
| 12/06/1990 | DE3918134A1 Pulsed transformer power source for stabilised DC supplies - uses pulse width modulation, transductor and comparator regulator to control output from no-load to terminal short circuit condition |
| 12/06/1990 | DE3918133A1 Pulsed transformer power source for stabilised DC supplies - uses pulse width modulation, transductor and comparator regulator for economic provision of multiple outputs in min. space |
| 12/04/1990 | US4975823 Switched power supply with current mode regulation |
| 12/04/1990 | US4975821 High frequency switched mode resonant commutation power supply |
| 12/04/1990 | US4975820 Adaptive compensating ramp generator for current-mode DC/DC converters |
| 12/04/1990 | US4975819 Cuk type direct/direct voltage converter and mains supply with direct conversion achieved with a converter such as this |
| 12/04/1990 | US4975592 Current supply arrangement having a stand-by mode featuring low power consumption |
| 12/03/1990 | WO1990015469A1 Electic converter with several induction coils |
| 12/03/1990 | CA2033205A1 Electric converter with several induction coils |
| 11/28/1990 | EP0399561A2 VHF DC-DC power supply |
| 11/27/1990 | US4974142 Bootstrap drive for a switch-mode power converter |
| 11/27/1990 | US4974141 AC to DC power converter with input current waveform control for buck-boost regualtion of output |
| 11/27/1990 | US4973815 Resistance welder using an inverter |
| 11/27/1990 | CA1276991C Ac input free power source |
| 11/27/1990 | CA1276977C Self-oscillating high frequency power converter |
| 11/27/1990 | CA1276976C Dc-dc converter |
| 11/27/1990 | CA1276975C Power converter with duty ratio quantization |
| 11/22/1990 | EP0398723A2 Switching power supply apparatus and isolating method thereof |
| 11/22/1990 | EP0398567A2 Method of operating AC magnetic devices with high efficiency at high frequency |
| 11/22/1990 | EP0397708A1 Dc to dc converter with feed forward and feed back regulation |
| 11/21/1990 | CN1047176A Capacitive voltage regulating dc power supply |
| 11/20/1990 | US4972292 Inductor with centertap switching transistor for reduced radio frequency emissions |
| 11/15/1990 | WO1990013938A1 A voltage step up regulator |
| 11/15/1990 | DE3918046A1 Pulsed voltage transformer for DC supply - has efficient energy transfer capability with secondary to primary feedback and reduced component dimensions |
| 11/14/1990 | EP0397563A1 High voltage generator with high power dynamic |
| 11/14/1990 | EP0397176A2 Switching power supply for operating a microwave oven |
| 11/14/1990 | EP0396631A1 Arrangement for controlled energy transfer for electrical supply, especially for reducing switching transients |
| 11/14/1990 | EP0177595B1 Power supply for plasma display panel |
| 11/13/1990 | US4970451 Device for utilizing low voltage electric current sources |
| 11/13/1990 | US4970409 Voltage multiplier for nonvolatile semiconductor memory |
| 11/08/1990 | DE3914287A1 DC voltage converter for vehicle voltage supply system - has FET controlled by regulating stages to provide stabilised output voltage |
| 11/07/1990 | EP0396126A2 Power supply device |
| 11/07/1990 | EP0396125A2 Forward conventer |
| 11/07/1990 | EP0395782A1 Oscillator |
| 11/07/1990 | EP0148857B1 Ion thruster power-processing unit |
| 11/06/1990 | US4969078 Push-pull current-fed DC-DC converter |
| 11/06/1990 | US4969077 Power supply circuit |
| 11/06/1990 | US4969076 Load compensating gain control for a series resonant inverter |
| 11/06/1990 | CA1276035C Static inverter with an overcurrent circuit upon a short circuit |
| 10/31/1990 | EP0395558A2 DC/DC Converter |
| 10/31/1990 | DE3914069A1 Circuit for controlling voltage supply unit - supplies pulse switches of both regulators with control pulses and for PWM of control pulses depending on comparator unit |
| 10/31/1990 | CN1046644A Preprocessor auxiliary power supply |
| 10/30/1990 | US4967335 Saturable transformer regulator for flyback power supply |
| 10/30/1990 | US4967333 Stabilized power supply with reduced ripple factor |
| 10/30/1990 | US4967332 HVIC primary side power supply controller including full-bridge/half-bridge driver |
| 10/30/1990 | US4967309 Dual current sensing driver circuit |
| 10/30/1990 | US4967138 Switched-mode regulator with inductor current simulation circuit |
| 10/24/1990 | EP0393280A2 Power supplies |
| 10/23/1990 | US4965712 Transformer having plural-turn core |
| 10/23/1990 | US4965506 Power-supply circuit having circuitry for switching from a battery charging mode to a battery trickle-charging mode |
| 10/23/1990 | CA1275493C Start-up control circuitry for a television apparatus |
| 10/23/1990 | CA1275440C Rfi suppression technique for switching circuits |
| 10/20/1990 | CA2014604A1 Efficient initial power-up technique for a switching power supply |
| 10/18/1990 | WO1990012447A1 Combinatorial circuit component with flow inverter |