| 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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| 02/07/1989 | US4803610 Switching power supply |
| 02/02/1989 | DE3823557A1 Spray-coating device |
| 02/01/1989 | EP0301905A2 Circuit and method for synchronizing power sources in a parallel AC electrical power system |
| 02/01/1989 | EP0301483A2 Control apparatus for a power converter |
| 02/01/1989 | EP0301436A1 DC-DC converter |
| 02/01/1989 | CN2031977U Automatic closing type energy-saving multipurpose inverter |
| 01/31/1989 | US4802080 Power transfer circuit including a sympathetic resonator |
| 01/31/1989 | US4802079 PWM control apparatus for interphase reactor multiplex inverter |
| 01/31/1989 | US4802077 PWM inverter controller |
| 01/31/1989 | US4802075 Electronic circuitry for converting direct voltage to alternating voltage |
| 01/31/1989 | US4801887 Circuit arrangement for generating a direct voltage from a sinusoidal input voltage |
| 01/31/1989 | CA1249642A1 Guard system for inverter apparatus |
| 01/26/1989 | DE3723169A1 Transistor output stage, especially for an invertor |
| 01/25/1989 | EP0300872A1 Filtering device for common types disturbances acting on a static power converter's electronic cards |
| 01/25/1989 | EP0300392A2 Rectifier circuit for supplying DC voltage to an intermediate circulating current circuit |
| 01/24/1989 | US4800481 Static converter circuit and method for controlling it |
| 01/24/1989 | US4800478 Method and apparatus for controlling PWM inverter |
| 01/19/1989 | DE3723067A1 Method for operating a converter |
| 01/19/1989 | DE3722451A1 Electrical power supply circuit having a low leakage current and high efficiency |
| 01/18/1989 | EP0299404A2 Transistor end stage, especially for an inverter |
| 01/18/1989 | EP0299339A1 Low-loss switching device for the semiconductor switches of a three-point inverter |
| 01/18/1989 | EP0087424B1 Inverter connection with bridge for transforming direct current into single phase or multiphase alternating current |
| 01/18/1989 | CN2031176U All thyristor bridge rectifier |
| 01/18/1989 | CN1030504A Constant power method for graphitization power supply device |
| 01/18/1989 | CN1030391A Control apparatus of ac elevator |
| 01/17/1989 | US4799139 Voltage regulation for three-phase inverters |
| 01/11/1989 | EP0298562A2 Circuit arrangement for the transmission of electric energy |
| 01/10/1989 | US4797833 Microprocessor based controller for a three phase bridge rectifier |
| 01/10/1989 | US4797802 Multiple phase rectifier with active filter for removing noise in triggering signals and digital phase shift compensator for phase shifting signal passed through |
| 01/10/1989 | US4797801 Plural polyphase inverter units having toned input filters |
| 01/10/1989 | CA1248583A1 Power switching circuit |
| 01/04/1989 | EP0297123A1 Regulated ac/dc converter |
| 01/04/1989 | EP0297121A1 Rectifier assembly |
| 12/29/1988 | WO1988010535A1 Alternating voltage commutator |
| 12/28/1988 | CN88103400A Inverter control apparatus |
| 12/28/1988 | CN88102081A Inverter arrangement |
| 12/28/1988 | CN87200538U Safety and comfortable electric heating blanket with low capacity electric current |
| 12/27/1988 | US4794510 Rectifier assembly |
| 12/27/1988 | US4794509 Converter module having cooling elements and a ripple control transmitter apparatus utilizing the same |
| 12/22/1988 | DE3820125A1 Method for controlling an electric motor |
| 12/22/1988 | DE3719379A1 Method and device for supplying high voltage, especially to impedence-type loads |
| 12/21/1988 | EP0295858A2 High voltage DC power supply |
| 12/20/1988 | US4792887 Regulated rectifier d.c. power supply |
| 12/20/1988 | US4792885 Control device of the transistor bases of an inverter arm |
| 12/20/1988 | CA1247193A1 Scr firing circuit |
| 12/15/1988 | DE3815471A1 Low-loss circuit for at least one switchable valve |
| 12/15/1988 | DE3718008A1 Semiconductor circuit arrangement for full-wave rectification |
| 12/14/1988 | EP0295197A1 Power supply start-up circuit |
| 12/14/1988 | CN88103301A Control apparatus for pwm-controlled, variable voltage/variable frequency inverters |
| 12/13/1988 | US4791545 Zero-crossover SCR power supply regulator |
| 12/13/1988 | US4791542 Ferroresonant power supply and method |
| 12/13/1988 | US4791349 Electric power system |
| 12/13/1988 | US4791346 Elevator motor control |
| 12/07/1988 | EP0293915A2 Inverter control apparatus |
| 12/07/1988 | EP0293869A2 Power conversion system |
| 12/07/1988 | EP0293844A2 A control apparatus for PWM-controlled, variable voltage/variable frequency inverters |
| 12/07/1988 | CN87212512U Electric brushing and electroplating source |
| 12/07/1988 | CN87103762A Equipartition type power source |
| 12/06/1988 | US4789997 Circuit arrangement for producing high voltages |
| 12/01/1988 | DE3717488A1 Turn-off limiting network for inverters with GTO thyristors |
| 11/30/1988 | EP0293219A2 Power converter device |
| 11/29/1988 | US4788486 Vehicular power supply system having a plurality of power supply voltages |
| 11/29/1988 | US4788451 AC voltage stabilizer easily convertible into uninterruptible power supply (UPS) |
| 11/29/1988 | CA1245719A1 Switching power supply |
| 11/22/1988 | US4787023 Power supply apparatus |
| 11/17/1988 | WO1988009108A1 Circuit arrangement for operating a gas discharge lamp on a direct current source |
| 11/17/1988 | WO1988009085A1 Clipper circuit for power transistor circuit and inverter circuit utilizing the same |
| 11/17/1988 | EP0291120A2 A regulated high frequency power supply |
| 11/17/1988 | EP0290914A1 Status signal generated for indicating the by-pass transition in a device for high voltage direct current power transmission |
| 11/17/1988 | EP0290617A1 Control unit |
| 11/17/1988 | DE3813672A1 Invertor for an inductive load |
| 11/16/1988 | CN87103442A Adjustable voltage transistor rectifier circuit |
| 11/15/1988 | US4785389 Astable, magnetically coupled multivibrator |
| 11/15/1988 | US4785208 Low-inductance anode-cathode R-C circuit for a gate-turn-off power thyristor |
| 11/10/1988 | DE3714175A1 Low-loss circuitry of gate-controlled semi-conductors |
| 11/08/1988 | US4783728 Modular power supply with PLL control |
| 11/08/1988 | CA1244517A1 Acceleration power supply |
| 11/02/1988 | EP0289403A1 Auto-pilot circuit for a resonant inverter |
| 11/02/1988 | EP0289373A1 Pulse width modulation converter |
| 11/02/1988 | EP0289032A2 Magnetron feeding apparatus and method of controlling the same |
| 11/02/1988 | EP0288710A2 Switching regulator |
| 11/02/1988 | CN88102486A Current source power converting apparatus with overvoltage protection |
| 10/26/1988 | EP0288223A2 Lamp-lighting device |
| 10/26/1988 | EP0288222A2 Lamp-lighting device |
| 10/26/1988 | EP0288111A1 Symmetrical electrical snubber circuit |
| 10/26/1988 | CN87214389U Transformerless current-stabilied continuous source for a solid laser |
| 10/25/1988 | US4780804 Method and an arrangement for enabling the magnetizing current passing through a transformer to be minimized when an asymmetric load is applied to the secondary side of the transformer |
| 10/25/1988 | US4780803 High frequency generator to be used in induction heating, laser, plasma and the alike |
| 10/25/1988 | US4780802 Control circuit for removing ripple of direct current supply system for voltage source inverter |
| 10/19/1988 | EP0287166A2 Initial-current surge limiting circuitry for a switching transistor |
| 10/19/1988 | CN87102544A Balance type three phase voltage regulating circuit with a single silicon controlled rectifier |
| 10/18/1988 | US4779183 Method and apparatus for selectively controlling an operation mode of a PWM inverter between an asychronous mode and a synchronous mode modulation |
| 10/18/1988 | CA1243413A1 Power supply for deflection circuit |
| 10/12/1988 | EP0286384A2 Switch mode electrical power controller |
| 10/12/1988 | EP0286267A2 Converter-fed ac machine without damper winding |
| 10/12/1988 | EP0286205A2 Power transistor drive circuit |
| 10/12/1988 | EP0285674A1 Inverter |
| 10/12/1988 | EP0285606A1 Improvements relating to ac/dc converters |
| 10/11/1988 | US4777580 Integrated full-wave rectifier circuit |
| 10/11/1988 | US4777579 Building block for an inverter |