| Patents for H02M 1 - Details of apparatus for conversion (33,954) |
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| 01/26/1989 | WO1989000786A1 Apparatus and method for transformation |
| 01/25/1989 | CN1030675A Gate signal generator for thyristor valve |
| 01/24/1989 | US4800478 Method and apparatus for controlling PWM inverter |
| 01/24/1989 | US4800477 Digitally controlled switch-mode power supply apparatus employing quantized stored digital control signals |
| 01/11/1989 | EP0298562A2 Circuit arrangement for the transmission of electric energy |
| 01/11/1989 | EP0298515A1 Gate signal generator for thyristor valve |
| 01/11/1989 | CN1003068B Switching power supply |
| 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 | US4797599 Power control circuit with phase controlled signal input |
| 01/10/1989 | US4797587 Triggering method for a thyristor switch |
| 01/04/1989 | CN2030394U Voltage-controlled current source |
| 01/03/1989 | US4796146 Protection circuit for a thyristor converter |
| 01/03/1989 | US4796145 Semiconductor module |
| 01/03/1989 | CA1248172A1 Cycle controlled power converter |
| 12/28/1988 | EP0296859A2 Power factor correction circuit |
| 12/28/1988 | CN88103400A Inverter control apparatus |
| 12/27/1988 | US4794508 PWM control circuit for a non-symmetrical switching power supply |
| 12/27/1988 | US4794507 Controlling electrical power |
| 12/27/1988 | US4794270 Stabilizing circuit for switching mode power supply circuit |
| 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 |
| 12/14/1988 | EP0295197A1 Power supply start-up circuit |
| 12/07/1988 | EP0293915A2 Inverter control apparatus |
| 12/07/1988 | EP0293569A2 Power control circuit with phase controlled signal input |
| 12/06/1988 | CA1246143A1 Thyristor control pulse generating device for feeding the reactive power inductance adjustment in an electrical network |
| 11/30/1988 | EP0293219A2 Power converter device |
| 11/29/1988 | US4788485 Apparatus for controlling electric motor |
| 11/29/1988 | US4788451 AC voltage stabilizer easily convertible into uninterruptible power supply (UPS) |
| 11/24/1988 | DE3715241A1 Method for evaluating a check-back signal, which depends on the drive angle, of a check-back device and circuit arrangement for carrying out the method |
| 11/22/1988 | US4786826 Power interface circuit with control chip powered from power chip |
| 11/22/1988 | CA1245284A1 Flyback switching regulator |
| 11/17/1988 | WO1988009085A1 Clipper circuit for power transistor circuit and inverter circuit utilizing the same |
| 11/17/1988 | WO1988007806A3 Instantaneous failure compensation circuit |
| 11/17/1988 | EP0173697B1 Flyback switching regulator |
| 11/15/1988 | US4785390 Instantaneous failure compensation circuit |
| 11/15/1988 | US4785388 Gate pulse generator for thyristor converter |
| 11/15/1988 | US4785208 Low-inductance anode-cathode R-C circuit for a gate-turn-off power thyristor |
| 11/08/1988 | US4783729 Automatic voltage doubler switch |
| 11/02/1988 | EP0289196A2 High frequency resonant power converter |
| 11/01/1988 | US4782437 Magnetic material biasing method and apparatus |
| 10/26/1988 | EP0288111A1 Symmetrical electrical snubber circuit |
| 10/26/1988 | EP0287863A2 Power select circuit |
| 10/26/1988 | CN87102014A Co-phase trigger and triggering method of thyristor |
| 10/25/1988 | US4780805 Low/high input voltage power supply |
| 10/19/1988 | EP0287166A2 Initial-current surge limiting circuitry for a switching transistor |
| 10/19/1988 | EP0286909A1 Process and device for controlling and regulating a switching current supply unit |
| 10/19/1988 | CN88101891A Electric power converter |
| 10/13/1988 | DE3737841C1 Circuit arrangement for driving a gate-turn-off semiconductor switch |
| 10/12/1988 | EP0286459A1 Electrochemical capacitor filter block for static power converter |
| 10/11/1988 | US4777406 High voltage power supply particularly adapted for a TWT |
| 10/06/1988 | WO1988007806A2 Instantaneous failure compensation circuit |
| 10/05/1988 | EP0284615A1 Magnetic material biasing method and apparatus. |
| 10/05/1988 | CN88101565A Pwm power converter |
| 10/04/1988 | US4775924 Inverter commutation failure prevention method and apparatus |
| 09/28/1988 | EP0284592A1 Device allowing the restoration of the line courant in case of the burning out of one or several elements of a series arrangement |
| 09/28/1988 | EP0284412A2 Automatic voltage switching power source |
| 09/28/1988 | EP0284021A2 PWM power converter |
| 09/20/1988 | US4772810 Apparatus for non-dissipative switching transistor snubber |
| 09/15/1988 | DE3706692A1 Oscillation build-up auxiliary circuit for a switched-mode power supply |
| 09/14/1988 | CN88105494A Waveform reforming inverter and regulator |
| 09/13/1988 | US4771373 DC power supply with electronically controlled power dissipation |
| 09/07/1988 | CN87215833U Automatic switch of a.c. voltage regulator |
| 08/31/1988 | EP0280382A2 Inverter control method and apparatus |
| 08/30/1988 | US4768142 Power-supply circuit |
| 08/30/1988 | US4767948 Method and device for driving semiconductor power components |
| 08/17/1988 | EP0278369A2 Control apparatus for cascaded converter circuit |
| 08/17/1988 | CN87204113U Silicon controlled chopper with double current chopping function |
| 08/16/1988 | US4764857 Power supply start-up circuit with high frequency transformer |
| 08/16/1988 | US4764684 Static converter comprising a protective filter against high-frequency disturbanes |
| 08/10/1988 | CN87207752U New-type asynchronous trigger controller for thyristor |
| 08/09/1988 | US4763240 Polyphase power adapter for frequency reduction |
| 08/09/1988 | US4763220 Static switch circuit or device for the protected supply of a load, and its line |
| 08/09/1988 | US4763093 High-power pulse transformer for short high-voltage and/or high-current pulses |
| 08/09/1988 | US4763077 Sensor circuit responsive to different fluid conductivities |
| 08/02/1988 | US4761725 Digitally controlled A.C. to D.C. power conditioner |
| 08/02/1988 | US4761702 CMOS latch-up recovery circuit |
| 08/02/1988 | CA1239992A1 Circuit arrangement for monitoring a thyristor |
| 07/26/1988 | US4760356 Power line filter |
| 07/20/1988 | CN87107636A Static transducer containing filter against high-frequency interference |
| 07/14/1988 | DE3728318A1 DC/DC converter output stage |
| 07/12/1988 | US4757436 Current-type converter protecting apparatus |
| 07/12/1988 | US4757415 Power active filter employing positive sequence filtering |
| 07/12/1988 | CA1239188A1 Method and apparatus for suppressing resonance phenomena in the a-c network on the inverter side of a high voltage d-c transmission system |
| 06/28/1988 | US4754387 Start-up circuit for a switch mode power supply |
| 06/22/1988 | EP0271763A1 Thyristor ignition device |
| 06/22/1988 | EP0271687A2 Gate pulse generator for thyristor converter |
| 06/21/1988 | US4752751 Electrical power supply |
| 06/21/1988 | US4752705 Off-gate circuit for a GTO thyristor |
| 06/15/1988 | EP0257089A4 Switching mode power supply start circuit. |
| 06/09/1988 | DE3641449A1 Switched-mode power supply for three-phase networks |
| 06/08/1988 | CN86107961A Two way thyristor variable pulse phase shifting trigger |
| 06/07/1988 | US4750100 Transfection high voltage controller |
| 06/07/1988 | US4750076 Geometric arrangement for filter capacitors |
| 06/01/1988 | CN87106772A Method of controlling thyristors and equipment thereof |
| 05/31/1988 | US4748398 Circuit for controlling a series switching element in a clocked power supply |
| 05/31/1988 | US4748342 For producing DC supply voltages |
| 05/26/1988 | DE3639495A1 Circuitry for the switches of pulse-controlled invertors and DC semiconductor controllers for multi-quadrant operation |
| 05/25/1988 | EP0268337A1 Apparatus for controlling the power supply of an inductive load |
| 05/24/1988 | US4747036 Fault detector apparatus having serial fault-detection signal path |