| 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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| 05/31/1988 | US4748551 Constant current supply for a varying resistance |
| 05/31/1988 | US4748550 Pulse width modulator used for a power converter with a transformer |
| 05/31/1988 | US4748532 Transformer coupled power switching circuit |
| 05/31/1988 | US4748383 DC-AC converter for igniting and supplying a discharge lamp |
| 05/31/1988 | US4748311 Inverter with power supply to chopper through parallel resonant circuit tuned to twice the chopper frequency |
| 05/31/1988 | CA1237490A1 Piezoceramic coupler control circuit |
| 05/31/1988 | CA1237472A1 Static energy frequence converter |
| 05/26/1988 | DE3639495A1 Circuitry for the switches of pulse-controlled invertors and DC semiconductor controllers for multi-quadrant operation |
| 05/25/1988 | EP0268046A2 Method and circuit arrangement for the control and regulation of three-phase inverters with sequence regulation |
| 05/24/1988 | US4747037 High-voltage thyristor conversion/inversion apparatus |
| 05/19/1988 | WO1988003745A1 Control unit |
| 05/18/1988 | EP0267252A1 Frequency converter for the stabilized supply of asynchronous motors. |
| 05/18/1988 | CN87106609A Three-phase semi-controlled bridge type rectifying circuit without run away |
| 05/17/1988 | US4745539 Controllable frequency converter |
| 05/17/1988 | US4745537 Low dissipation power converter |
| 05/17/1988 | US4745263 Current regulator for carpet seaming apparatus |
| 05/17/1988 | CA1236875A1 Electrostatic air cleaner and high voltage power source therefor |
| 05/11/1988 | EP0267129A1 Static converter with a protection filter against high-frequency disturbances |
| 05/10/1988 | US4744018 Regulated power supply |
| 05/04/1988 | EP0265867A2 Apparatus for controlling power converters |
| 05/04/1988 | EP0265770A2 Voltage multiplication device |
| 05/04/1988 | CN87210430U 电子变压器 Electronic Transformer |
| 05/04/1988 | CN87107172A Controller of electric power convertor |
| 05/03/1988 | US4742442 Controlled magnetron power supply including dual-mode inverter |
| 05/03/1988 | US4742441 High frequency switching power converter |
| 05/03/1988 | US4742208 Welding system with electronic control |
| 05/03/1988 | EP0250483A4 Power controller. |
| 04/28/1988 | DE3635401A1 Circuit arrangement for feeding back circuit energy from an invertor which can be deactivated and has semiconductor components |
| 04/27/1988 | CN87203676U Trigger unit for thyristor |
| 04/26/1988 | US4740881 Simultaneous recovery commutation current source inverter for AC motors drives |
| 04/26/1988 | CA1235741A1 Method and system for controlling an ac-dc converter system |
| 04/21/1988 | WO1988002949A1 Inverter |
| 04/20/1988 | EP0263936A1 Secondary side switchable power supply device |
| 04/20/1988 | EP0263832A1 Control circuit of the power transistor in a dc/ac converter |
| 04/20/1988 | CN87106643A Excess current protective circuit of converter |
| 04/20/1988 | CN86208052U Dc-ac reverse transformation power supply |
| 04/19/1988 | US4739466 Regulated AC/DC converter |
| 04/19/1988 | US4739465 Low loss and anti-shoot-through pulse width modulated inverter controller |
| 04/19/1988 | US4739464 Direct current magnetic polarization component compensation circuit for constant voltage/frequency power supply apparatus |
| 04/14/1988 | DE3733263A1 Radio-frequency generator |
| 04/13/1988 | EP0263365A1 Method for reducing the torque ondulations of an electric engine unit fed by an intermediate circulating current inverter with phase following commutation |
| 04/13/1988 | EP0263342A2 Current converter and utilization of the current converter as a frequency converter for omnidirectional master transmitter |
| 04/12/1988 | US4737903 Electronic apparatus |
| 04/12/1988 | US4737901 High efficiency power source for reactive loads |
| 04/12/1988 | CA1235237A1 Converter-powered drive for an elevator |
| 04/07/1988 | WO1988002573A1 Static power conversion method and apparatus |
| 04/06/1988 | EP0262164A1 System for producing an alternating voltage. |
| 04/06/1988 | CN87207875U Rectification controller |
| 04/05/1988 | US4736286 Switching power supply |
| 04/05/1988 | US4736284 Switching power supply circuit including forward converter |
| 04/05/1988 | US4736148 AC motor control method and its control apparatus |
| 03/30/1988 | EP0262017A1 Base control circuit for the transistors of an inverter branch |
| 03/29/1988 | US4734828 High frequency-high voltage power converter circuit |
| 03/24/1988 | WO1988002195A1 Inverter |
| 03/23/1988 | EP0261018A1 Voltage frequency auto-piloted converter |
| 03/23/1988 | EP0260963A2 Inverter-type resistance welding machine |
| 03/23/1988 | EP0260825A2 High voltage power supply particularly adapted for a TWT |
| 03/23/1988 | EP0260776A2 Line frequency switching power supply |
| 03/23/1988 | CN87213289U Fully-automatic charger |
| 03/23/1988 | CN86106028A Power generator |
| 03/22/1988 | US4733342 Power supply for an inductive user, particularly a gradient coil |
| 03/22/1988 | US4733341 Plural inverter synchronizer and control apparatus |
| 03/22/1988 | US4733135 Self-regulating, no load protected electronic ballast system |
| 03/16/1988 | CN86207264U Energy-sav9ng power supply for neon tube lamp |
| 03/15/1988 | US4731722 Low AC harmonic DC power supply |
| 03/10/1988 | WO1988001805A1 Switching circuit |
| 03/10/1988 | WO1988001804A1 On-off detecting circuit |
| 03/10/1988 | DE3629186A1 Power output stage |
| 03/09/1988 | EP0259256A2 Astable magnetically coupled multivibrator |
| 03/09/1988 | EP0259240A2 Apparatus and method for controlling a force commutated inverter |
| 03/09/1988 | EP0259005A1 Method and apparatus for control of current in a motor winding |
| 03/09/1988 | EP0258428A1 Bi-directional switch for neutral point clamped pwm inverter |
| 03/08/1988 | US4730246 Method and apparatus for operating a pulse frequency converter with compensation of fault voltage-time areas caused by carrier storage effects |
| 03/08/1988 | US4730245 Power cut detection apparatus for power converter |
| 03/08/1988 | US4730242 Static power conversion and apparatus having essentially zero switching losses |
| 03/02/1988 | EP0257820A2 Feedback control system for producing PWM control signals |
| 03/02/1988 | EP0257089A1 Switching mode power supply start circuit |
| 03/02/1988 | CN86205648U Tandem converler |
| 03/01/1988 | US4729088 Regulated high frequency power supply |
| 03/01/1988 | US4729087 Inversion process and apparatus |
| 03/01/1988 | US4729084 Inverter apparatus |
| 03/01/1988 | US4729082 Control device for power converter |
| 03/01/1988 | US4728817 Power transistor drive circuit |
| 03/01/1988 | CA1233509A1 Twelve pulse ac motor drive |
| 02/25/1988 | WO1988001448A1 Full wave rectifier circuit |
| 02/24/1988 | EP0256569A1 Supply circuit for supplying a smoothed direct current to a load impedance |
| 02/24/1988 | EP0256231A2 Control circuit for a switching power supply with a sinusoidal input current for transforming a sinusoidal AC voltage into a regulated DC voltage |
| 02/24/1988 | CN86202103U Multi-purpose dc source available for riding bicycle |
| 02/23/1988 | US4727470 Resonant inverter having crest factor control |
| 02/23/1988 | US4727467 Procedure and device to operate an HVDC transmission short coupling in the event of power system faults |
| 02/23/1988 | CA1233200A1 Method and apparatus for resumption of normal operation of a high-voltage d. c. transmission line |
| 02/23/1988 | CA1233199A1 Method and apparatus for high-voltage d. c. transmission with a bypass circuit for malfunctions |
| 02/23/1988 | CA1233198A1 Method and apparatus to operate a high-voltage dc transmission system (hvdc) with automatic control of the converters |
| 02/18/1988 | DE3627713A1 Circuit arrangement of a converter which supplies a synchronous motor at low rotation speeds via two DC intermediate circuits |
| 02/18/1988 | DE3627294A1 Method for producing pulse-width-modulated signals for a converter, and a circuit arrangement for carrying out the method |
| 02/17/1988 | CN85100460B Voltagetype converter circuit with pwm and uncontious commutation |
| 02/16/1988 | US4725941 High-voltage/large-current generator apparatus and method for generating high-voltage/large-current |
| 02/16/1988 | US4725939 System for supply of direct current to at least two electrical loads with a common polarity, in particular for multiple electric arcs |
| 02/16/1988 | US4725938 High voltage resonant DC/DC converter |
| 02/16/1988 | US4725762 Ballast circuit for operating a gas discharge lamp with direct current |