| Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189) |
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| 07/15/1992 | EP0292512B1 Static power conversion method and apparatus |
| 07/15/1992 | CN2110317U Apparatus for mutual conduction of three-phase a. c. and d. c. |
| 07/14/1992 | US5130918 Electronic power switch |
| 07/14/1992 | US5130917 Power inverter snubber circuit |
| 07/14/1992 | US5130617 Inverter control device for driving an elevator |
| 07/14/1992 | CA1305215C Three-phase converter |
| 07/14/1992 | CA1305213C Bi-directional d.c.ia.c converter compatible with an inverter bridge |
| 07/09/1992 | DE4139997A1 MOSFET circuit for inverter and interrupting free current supply - has power MOSFET(s) which form symmetrical module, together with energising circuits, w.r.t. thermal and electric conditions |
| 07/08/1992 | EP0493604A1 High frequency heating apparatus using power supply of switching type for magnetron |
| 07/08/1992 | CN2109661U Reducing transformer of incandescent lamp |
| 07/07/1992 | US5128854 Circuit arrangement for supplying a load |
| 07/07/1992 | US5128853 Damping resonant oscillations in a parallel resonant inverter |
| 07/07/1992 | US5128560 Boosted supply output driver circuit for driving an all N-channel output stage |
| 07/05/1992 | CA2058653A1 High frequency oscillator-inverter circuit for discharge lamps |
| 07/02/1992 | DE4042001A1 Improved operation of three-level pulse inverter - changes voltage of respective strand by current control deviation on reaching tolerance band limit |
| 07/01/1992 | EP0492396A1 Parallel inverter system |
| 07/01/1992 | EP0491731A1 Combinatorial circuit component. |
| 07/01/1992 | EP0491691A1 Process and device for determining parameters governing resonance in a power-converter power supply. |
| 07/01/1992 | EP0491690A1 Process for control of a multi-stage pulse converter. |
| 07/01/1992 | EP0491689A1 Device and process for optimum operation of a power converter connected to a power supply. |
| 07/01/1992 | CN2109019U Dual star shape circulating series rectifier |
| 06/30/1992 | US5126652 Universal input voltage power supply |
| 06/30/1992 | US5126647 Pulse by pulse current limit and phase current monitor for a pulse width modulated inverter |
| 06/30/1992 | US5126642 Variable speed motor control |
| 06/30/1992 | US5126522 Induction heating apparatus for preventing the formation of stripes on plated steel |
| 06/30/1992 | CA1304448C Power factor improving arrangement |
| 06/25/1992 | DE4040247A1 Direct current rectified source - with means to prevent current surged when a short circuit develops in the nominal load circuit |
| 06/25/1992 | CA2056502A1 Ac to dc converter having an enhanced power factor |
| 06/24/1992 | EP0491499A1 Drive circuit |
| 06/24/1992 | CN2108378U Non-inductive contravariant supply unit |
| 06/23/1992 | US5124904 Optimized 18-pulse type AC/DC, or DC/AC, converter system |
| 06/23/1992 | US5124567 Power supply device and electronic apparatus using the same |
| 06/23/1992 | US5123746 Bridge type power converter with improved efficiency |
| 06/17/1992 | EP0490388A2 Ground fault detector for an inverter and a method therefor |
| 06/17/1992 | EP0489971A1 Method and device for driving an m-pulse inverter system, comprising a master-inverter and at least one slave-inverter |
| 06/17/1992 | EP0489947A1 Turn-off circuit |
| 06/17/1992 | CN1062061A Telephone ringer circuit |
| 06/16/1992 | US5122947 Flyback transformer having coil arrangement capable of reducing leakage of magnetic flux |
| 06/16/1992 | US5122946 Quasi push-pull single switch current-fed fly-back converter |
| 06/16/1992 | US5122724 Inrush current limiter |
| 06/16/1992 | CA1303667C Elevator motor control |
| 06/11/1992 | DE4038976A1 Energy-changer between power supply and load - uses rectifier or variable-ratio transformer or AC current pulse converter |
| 06/10/1992 | EP0489512A2 Telephone ringer circuit |
| 06/10/1992 | EP0489487A2 Improvements in or relating to electrical supply apparatus |
| 06/09/1992 | US5121317 Inverter device |
| 06/09/1992 | US5121315 D.C.-A.C. power converter with multiple conversions |
| 06/09/1992 | US5121314 Bi-mode high voltage resonant power supply and method |
| 06/09/1992 | US5121043 PWM control in the pulse dropping region |
| 06/09/1992 | US5120986 Sine wave synthesis controller circuit for use with a neutral-point clamped inverter |
| 06/06/1992 | CA2056132A1 Telephone ringer circuit |
| 06/03/1992 | EP0488201A1 Large capacity variable speed driving system for AC electric motor |
| 06/03/1992 | EP0488108A1 Engine-operated generator system |
| 06/03/1992 | EP0487556A1 Arrangement of a valve stack for high voltage direct current in a valve hall. |
| 06/02/1992 | US5119286 Modular circuit board |
| 06/02/1992 | US5119285 Solid-state power transformer circuit |
| 06/02/1992 | US5119283 High power factor, voltage-doubler rectifier |
| 06/02/1992 | US5119007 Inverter control apparatus |
| 06/02/1992 | US5118993 Variable voltage regulator |
| 06/02/1992 | CA1302513C Magnetron feeding apparatus and method of controlling the same |
| 06/02/1992 | CA1302496C High efficiency converter |
| 06/02/1992 | CA1302495C Inverter control method and apparatus |
| 06/02/1992 | CA1302494C Active snubber structure and method for an electronic power inverter |
| 06/02/1992 | CA1302493C Capacitive coupled power supplies |
| 06/02/1992 | CA1302484C Regenerative two-quadrant converter and motor drive embodying the same |
| 05/29/1992 | WO1992009136A1 A power supply circuit with integrated magnetic components |
| 05/27/1992 | EP0487204A2 Variable voltage regulator |
| 05/27/1992 | EP0486875A2 Power supply controlled to supply load current formed as sine wave |
| 05/27/1992 | DE4113603C1 High-power GTO converter - uses thyristors connected in three=phase rectifier circuit |
| 05/21/1992 | DE4201273A1 Regulating electric current between DC and AC voltage sources - using at least one rectifier or inverter depending on active and reactive current desired values and specified frequency |
| 05/21/1992 | DE4036795A1 Medium frequency oscillating circuit inverter - is designed in bridge circuit provided with thyristors in branches and free running diodes |
| 05/20/1992 | WO1992009137A1 Method and device for connecting frequency converters in parallel |
| 05/20/1992 | EP0486130A2 Single phase AC power conversion apparatus |
| 05/20/1992 | CN2105138U Machine tool rectifier |
| 05/20/1992 | CA2074176A1 Method and device for switching inverters in parallel |
| 05/19/1992 | US5115387 Circuitry and method of protecting thyristors |
| 05/19/1992 | US5115386 Circuit for controlling an electric power supply apparatus, a method therefor and an uninterruptible power supply |
| 05/19/1992 | US5115185 Single conversion power factor correction using septic converter |
| 05/19/1992 | CA1301246C Alternating voltage-fed rectifier circuit |
| 05/13/1992 | EP0485154A2 Power conversion device |
| 05/13/1992 | EP0484678A1 Bridge circuit and method for operating an inverter controlled bridge circuit |
| 05/13/1992 | EP0484341A1 A power supply. |
| 05/12/1992 | US5113337 High power factor power supply |
| 05/12/1992 | US5113334 High efficiency converter |
| 05/12/1992 | US5113085 Circuit arrangement for supplying a load |
| 05/12/1992 | CA1300676C Pwm inverter control unit |
| 05/07/1992 | DE4113117C1 Resistance welding using pulse-modulated AC - chopping each half wave in prim. circuit of transformer more than once |
| 05/07/1992 | DE4034520A1 Three=phase current regulator for variable speed drive - provides direct regulation of electrical output parameter using detected phase components |
| 05/06/1992 | EP0483744A2 Current detection circuit of power semiconductor device and power converter using the circuit |
| 05/06/1992 | EP0483486A2 Three phase delta reference transformer |
| 05/06/1992 | EP0483327A1 Converter circuit and process for controlling the same |
| 05/06/1992 | EP0290617B1 Control unit |
| 05/06/1992 | CN1060936A D.c.-a.c. converter |
| 05/05/1992 | US5111382 High power, high frequency resonant inverter using MOS controlled thyristors |
| 05/05/1992 | US5111381 H-bridge flyback recirculator |
| 05/05/1992 | US5111380 Controlled series-resonance-loaded inverter |
| 05/05/1992 | US5111378 DC chopper converter |
| 05/05/1992 | US5111376 Voltage balancing circuit |
| 05/05/1992 | US5111374 High frequency quasi-resonant DC voltage notching scheme of a PWM voltage fed inverter for AC motor drives |
| 05/05/1992 | US5111373 Pwm-controlled power supply including choke coil with 3-windings |
| 04/30/1992 | WO1992007419A1 Triphase inverter |