| Patents for H02M 3 - Conversion of dc power input into dc power output (54,461) |
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| 09/22/1981 | US4291366 Switching regulated power supply |
| 09/22/1981 | US4291259 Control apparatus for controlling transistor chopper for use in current supply for electric motor |
| 09/22/1981 | CA1109552A1 Power supply apparatus |
| 09/16/1981 | EP0035748A2 High-efficiency push-pull saturation converter |
| 09/16/1981 | EP0035710A2 Direct current actuating circuit |
| 09/16/1981 | EP0035599A2 Method for transformer coupled drive of a switching transistor working as final control element of a direct voltage converter |
| 09/15/1981 | US4290101 N Phase digital inverter |
| 09/15/1981 | US4290100 Four terminal voltage tripler for monolithic LCD clock circuit |
| 09/09/1981 | EP0035373A2 Improvements in and relating to electrical power supplies |
| 09/09/1981 | EP0035156A2 Freely oscillating B.O.-type converter |
| 09/08/1981 | US4288831 Shutdown circuit for a switching power supply |
| 09/08/1981 | US4288728 Electric vehicle control apparatus |
| 09/08/1981 | US4288724 Impulse generator for use with phosphor energizable lamps |
| 09/08/1981 | CA1108694A1 Voltage reduction circuits |
| 09/01/1981 | US4287516 Minimal energy dissipating detector |
| 09/01/1981 | US4287436 Electrical circuit for driving an inductive load |
| 08/25/1981 | US4286292 Television receiver supply circuit |
| 08/25/1981 | US4286194 Generator for use with loads having changing impedance characteristics |
| 08/25/1981 | CA1107818A1 Thyristor pulse control circuits |
| 08/19/1981 | EP0034075A2 Static power supply device of an electrofilter for electrostatic dust precipitation |
| 08/18/1981 | US4284938 Chopper with adaptive energy commutation |
| 08/18/1981 | CA1107349A1 Protective circuit for a switching regulator |
| 08/11/1981 | US4283759 Switching regulator |
| 07/28/1981 | US4281377 Power supply circuits |
| 07/28/1981 | US4281373 High frequency voltage generator |
| 07/23/1981 | WO1981002077A1 Dc to dc voltage conversion apparatus |
| 07/21/1981 | US4280174 DC-DC Converter |
| 07/14/1981 | US4279010 DC-DC Converter for solid state watches |
| 07/14/1981 | US4278930 Current sensing circuit for power supply with series control transistor |
| 07/07/1981 | US4277728 Power supply for a high intensity discharge or fluorescent lamp |
| 06/30/1981 | US4276590 Current sharing modular power system |
| 06/30/1981 | US4276588 Push-pull converter with energy saving circuit for protecting switching transistors from peak power stress |
| 06/30/1981 | US4276587 DC to DC Converter |
| 06/30/1981 | US4276586 Tuned switched-mode power supply |
| 06/30/1981 | CA1104207A1 Control circuit for use in a switching-type regulator |
| 06/30/1981 | CA1104205A1 Series resonant battery charger and control therefore |
| 06/25/1981 | WO1981001776A1 Converter circuit providing isolation and load sensing |
| 06/24/1981 | EP0030829A2 Converter of blocking oscillator type |
| 06/24/1981 | EP0030813A2 Boosting circuits |
| 06/23/1981 | US4275437 Semiconductor circuit for voltage conversion |
| 06/23/1981 | US4275436 Converter bleeder circuit responsive to flux condition of filter inductor |
| 06/17/1981 | EP0030276A1 Circuit arrangement for charging a battery |
| 06/17/1981 | EP0030266A2 Transformerless power supply |
| 06/16/1981 | US4274134 Method of and apparatus for high voltage pulse generation |
| 06/16/1981 | US4274133 DC-to-DC Converter having reduced ripple without need for adjustments |
| 06/16/1981 | US4274132 Power supply arrangements |
| 06/16/1981 | US4274044 DC-DC Converter for charging a battery by means of a solar cell |
| 06/16/1981 | US4274043 Efficient, high power battery module; D.C. transformers and multi-terminal D.C. power networks utilizing same |
| 06/11/1981 | WO1981001634A1 Switching device for regulating the supply of a consumer apparatus |
| 06/10/1981 | EP0030026A1 Circuit arrangement for the regular supply to a user |
| 06/09/1981 | US4272806 DC to DC Converter adjustable dynamically to battery condition |
| 06/09/1981 | US4272805 Switching regulator provided with charge-discharge circuit having overcurrent protecting function and soft-start function |
| 06/09/1981 | US4272692 Power supply distribution system |
| 06/09/1981 | US4272691 Generating electrical pulses |
| 06/09/1981 | US4272690 Clock controlled pulse width modulator |
| 06/09/1981 | CA1102873A1 Regulation circuit |
| 06/02/1981 | US4271461 Clock-controlled DC converter |
| 05/27/1981 | EP0029067A1 A converter circuit for storing a predetermined quantity of energy. |
| 05/19/1981 | US4268898 Semiconductor switching circuit with clamping and energy recovery features |
| 05/06/1981 | EP0027847A1 Method for regulation and current limitation of a switched d.c. ringing-choke converter |
| 05/05/1981 | US4266268 Switching power supply having energy storage inductor in primary circuit of output transformer |
| 05/05/1981 | US4266182 Common control with frequency drift compensation for a plurality of switching regulators |
| 05/05/1981 | US4266134 X-ray diagnostic generator comprising an inverter supplying the high voltage transformer |
| 04/30/1981 | WO1981001224A1 Voltage conversion method |
| 04/29/1981 | EP0027450A1 Write/restore/erase signal generator for volatile/non-volatile memory system. |
| 04/28/1981 | US4264971 Converter devices |
| 04/28/1981 | US4264950 Intrinsically safe regulated power supply |
| 04/28/1981 | US4264949 DC to DC power supply |
| 04/22/1981 | EP0027171A1 Forward D.C. converter |
| 04/21/1981 | US4263644 Current limiter for switched DC-to-DC converter |
| 04/21/1981 | US4263643 Switching regulator provided with error amplifier circuit having overcurrent protecting function |
| 04/21/1981 | US4263642 DC to DC converter |
| 04/15/1981 | EP0027015A2 A D.C. to D.C. converter |
| 04/15/1981 | EP0026870A2 Single ended D.C. converter for impulse control of the tension at a capacitive load |
| 04/14/1981 | US4262328 DC-to-DC converter |
| 04/14/1981 | US4262238 Controlled current supply circuit from a battery to a motor |
| 04/07/1981 | US4261032 High voltage CRT supply |
| 04/07/1981 | US4261025 Spark discharge ignition systems for gas turbine engines |
| 04/01/1981 | EP0026048A1 Method of and means for controlling operation of electric devices |
| 04/01/1981 | EP0026033A1 D.C. power supply |
| 03/31/1981 | US4259716 Transformer for use in a static inverter |
| 03/31/1981 | US4259715 Voltage conversion system for electronic timepiece |
| 03/31/1981 | US4259686 Circuit for producing a polarity-reversed voltage with opposite polarity to that of a power supply voltage |
| 03/31/1981 | US4259600 Integrated insulated-gate field-effect transistor control device |
| 03/31/1981 | US4259599 Complementary transistor switching circuit |
| 03/31/1981 | CA1098584A1 Device comprising a transformer for step-wise varying voltages |
| 03/25/1981 | EP0025725A2 Electronic device for the use of a very low voltage source and its application in a fire detector-emitter |
| 03/24/1981 | US4258309 Switching type power supply circuit |
| 03/24/1981 | US4258308 Switching regulator with flyback control offset |
| 03/19/1981 | WO1981000795A1 Method of and means for controlling electrical devices |
| 03/17/1981 | US4257092 Traction motor current control apparatus |
| 03/17/1981 | US4257090 Circuit for defined current sharing between parallel-connected switching regulator modules in DC switching regulators |
| 03/17/1981 | US4257089 Regulated variable frequency DC/DC converter |
| 03/17/1981 | US4257088 High-efficiency single-ended inverter circuit |
| 03/17/1981 | US4257087 DC-to-DC switching converter with zero input and output current ripple and integrated magnetics circuits |
| 03/17/1981 | US4256983 Voltage-to-frequency converter having a constant frequency mode of operation |
| 03/17/1981 | US4256977 Alternating polarity power supply control apparatus |
| 03/17/1981 | CA1097736A1 Dc to dc converter with regulated input impedance |
| 03/11/1981 | EP0024523A1 Single-ended forward converter for generating electrically separated d.c. output voltages |
| 03/10/1981 | US4255668 Pulsed power supplies |