| Patents for H02M 1 - Details of apparatus for conversion (33,954) |
|---|
| 09/05/1989 | US4864484 High-pass element of a filter assembly for a line connected with static converters |
| 09/05/1989 | US4864479 Full-bridge lossless switching converter |
| 09/05/1989 | US4864213 DC supply having low and high constant voltages for powering a polarity inverter controller |
| 08/29/1989 | US4862339 DC power supply with improved output stabilizing feedback |
| 08/29/1989 | US4862057 Cycle-controlled power converter |
| 08/24/1989 | DE3804478A1 Circuit for converter (inverter), especially pulse-controlled inverter |
| 08/23/1989 | EP0328941A1 Process and device for the commutation of current between turn-off switches of a current rectifier |
| 08/22/1989 | US4859884 Gate signal generator for thyristor valve |
| 08/15/1989 | US4858100 Electric power converter |
| 08/09/1989 | EP0215897B1 Inverter shoot-through protection circuit |
| 08/08/1989 | US4855890 Power factor correction circuit |
| 08/08/1989 | US4855888 Constant frequency resonant power converter with zero voltage switching |
| 08/08/1989 | US4855887 Current and frequency converter having means to reduce switching losses |
| 08/08/1989 | US4855652 Speed control apparatus for a brushless direct current motor |
| 08/02/1989 | EP0326220A2 Circuit arrangement for supplying a load |
| 08/01/1989 | US4853836 Snubber energy regenerating circuit |
| 08/01/1989 | US4853835 Protective apparatus for inverter |
| 08/01/1989 | US4853833 Filter unit with electrochemical capacitors for a static power converter |
| 07/27/1989 | WO1989006879A1 Active filter arrangement for filtering harmonic current components generated by a nonlinear consumer connected to a power system |
| 07/26/1989 | EP0325377A2 Control device for an electric vehicle |
| 07/26/1989 | EP0325301A2 Power control apparatus |
| 07/26/1989 | CN2041867U Pulse modulation signal generator |
| 07/19/1989 | EP0324089A2 Method for producing voltage pulses |
| 07/18/1989 | US4849950 Device for reducing the leakage noise of a power converter |
| 07/18/1989 | US4849873 Active snubber for an inverter |
| 07/05/1989 | CN1033719A Trigger circuit of silicon controlled rectifier with high or medium power |
| 07/04/1989 | US4845607 Dual input voltage power source for selectively switching between voltage doubler rectification and full-wave rectification functions |
| 06/28/1989 | CN1004675B Device for stabilizing torsional-vibration of turbogenerator shaft |
| 06/27/1989 | US4843536 AC input free power source |
| 06/27/1989 | US4843301 Power supply with switching means responsive to line voltage |
| 06/15/1989 | WO1989005541A1 Converter for converting a multiple phase variable frequency ac voltage into dc |
| 06/14/1989 | EP0320307A2 DC Supply having low and high constant voltages for powering an inverter controller |
| 06/13/1989 | US4839608 Circuit layout to eliminate alternating voltage interference signals |
| 06/07/1989 | EP0318790A1 High-pass filter of a filter arrangement for a network connected to a power converter |
| 06/07/1989 | CN1004462B Source apparatus of driving and controlling the three-end controlled electric valve |
| 06/06/1989 | US4837672 Switched mode power supply |
| 06/01/1989 | WO1989005059A1 Ac to dc power converter with integrated line current control |
| 06/01/1989 | WO1989005057A1 High frequency rectifier with sinusshaped primary current |
| 06/01/1989 | WO1989005056A1 Control circuit for triacs |
| 06/01/1989 | DE3826509A1 Method for the transmission of signals between a control-technology central processing unit and a drive unit for a power converter valve which can be switched on and off |
| 05/24/1989 | EP0316892A2 Improved resonant converter with high conversion efficiency and low output impedance |
| 05/23/1989 | US4833585 Zone filter |
| 05/23/1989 | US4833389 Current source inverter control system for load commutated induction motor drive |
| 05/23/1989 | US4833339 Load control system |
| 05/18/1989 | WO1989004563A1 Regulating a.c. power controller and method |
| 05/18/1989 | DE3738181A1 Device for regulating the DC voltage of a mains-commutated converter |
| 05/16/1989 | US4831508 Power supply system having improved input power factor |
| 05/10/1989 | EP0315273A1 Circuit arrangement for controlling alternating current by a load |
| 05/10/1989 | EP0314808A1 Clipper circuit for power transistor circuit and inverter circuit utilizing the same. |
| 05/10/1989 | EP0314669A1 Switched capacitor induction motor drive. |
| 05/09/1989 | US4829216 SCR regulator for a television apparatus |
| 05/09/1989 | CA1253928A1 Control device for controllable electric valve |
| 05/03/1989 | EP0313870A1 Current phase angle control circuit for motors of electrical tools |
| 05/03/1989 | DE3734786A1 Netzteil, welches von einem netzwechselstrom gespeist wird und eine geregelte gleichspannung liefert Power supply, which is fed from a commercial AC power and supplies a regulated DC voltage |
| 05/03/1989 | CN1032720A Self cut-off device and thyristor type hybrid conversion circuit |
| 05/02/1989 | US4827392 Control apparatus for a power converter |
| 05/02/1989 | US4827151 Uninterruptible power supply utilizing a synchronized chopper for power factor improvement |
| 04/25/1989 | US4825351 AC-DC converting apparatus having power factor improving circuit utilizing a photocoupler |
| 04/20/1989 | DE3833129A1 Power supply device for a X-ray device |
| 04/19/1989 | EP0311957A1 Process for operating a free "shoot-through" current of a push-pull circuit and proceeding method |
| 04/19/1989 | EP0311683A1 Instantaneous failure compensation circuit |
| 04/18/1989 | US4823249 High-frequency resonant power converter |
| 04/18/1989 | US4823070 Switching voltage regulator circuit |
| 04/11/1989 | US4821166 Power-supply circuit |
| 04/11/1989 | US4821163 Start-up circuit for an integrated-magnetic power converter |
| 04/11/1989 | CA1252511A1 Ac voltage stabilizer easily convertible into uninterruptible power supply (ups) |
| 04/06/1989 | WO1989003136A1 Power supply start circuit |
| 04/06/1989 | DE3832446A1 Device for DC voltage conversion of an input voltage by actuation of at least one electronic switch |
| 04/06/1989 | DE3832445A1 Device for low-loss switching-load reduction in pulsating operation |
| 04/06/1989 | DE3832443A1 Device for vehicle control of railway trains |
| 04/06/1989 | DE3832442A1 Device for operating electric loads of a passenger train |
| 04/06/1989 | DE3826043A1 Method for trigger pulse control |
| 04/05/1989 | EP0309919A2 A power conversion apparatus |
| 04/04/1989 | US4819157 Overcurrent protection circuit for inverter device including majority circuit for turn-off of majority of conducting transistors |
| 03/29/1989 | EP0309375A2 Highly efficient conversion circuit for power supplies |
| 03/28/1989 | US4816982 AC to DC power converter with integrated line current control for improving power factor |
| 03/28/1989 | US4816891 Optically controllable static induction thyristor device |
| 03/23/1989 | DE3826524A1 Power supply circuit having balance coil |
| 03/22/1989 | EP0307719A2 Power source apparatus |
| 03/14/1989 | US4812669 Harmonic suppressing device |
| 03/07/1989 | US4811193 Variable frequency controller |
| 03/01/1989 | CN2033559U Telecontrolled excitation regulator |
| 02/28/1989 | US4808843 Method and means for damping supersynchronous oscillations in an AC power system |
| 02/21/1989 | US4806896 Electromagnetic shield for electromagnetic apparatus |
| 02/21/1989 | US4806842 Soft start for five pin switching regulators |
| 02/21/1989 | US4806789 Power select circuit |
| 02/16/1989 | DE3726123A1 Circuit for operating a DC load |
| 02/14/1989 | US4805083 Low cost automatic voltage doubler switch |
| 02/14/1989 | US4805079 Switched voltage converter |
| 02/14/1989 | US4805063 Fault detector for detecting faults in a DC capacitor circuit |
| 02/14/1989 | US4804916 Input voltage compensated, microprocessor controlled, power regulator |
| 02/09/1989 | DE3725515A1 Extinguishing thyristors of railway or industrial power converter - using self-commutating rectifier across AC voltage terminals of main rectifier |
| 02/07/1989 | US4803379 Circuit arrangement for power supply for electrical and electronic control or regulating devices |
| 02/01/1989 | EP0301815A2 Control device for switching a thyristor |
| 02/01/1989 | EP0301679A2 Multiple-input power control system |
| 02/01/1989 | EP0301483A2 Control apparatus for a power converter |
| 02/01/1989 | EP0301386A2 Switching power supply |
| 02/01/1989 | CN2031975U Three-phase zero-crossing-triggering thyristor power regulator |
| 02/01/1989 | CN2031973U Phase-shifting pulse generator for thyristor rectifying equipment |
| 01/31/1989 | US4801887 Circuit arrangement for generating a direct voltage from a sinusoidal input voltage |