| 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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| 05/17/1989 | EP0315871A1 Process and device for the control of a current rectifier in an asymmetric network |
| 05/17/1989 | EP0107019B1 Lamp, in particular a signalling lamp for water-borne vehicles |
| 05/17/1989 | CN2037894U Two-way invertible source for dc dynamometer |
| 05/16/1989 | US4831508 Power supply system having improved input power factor |
| 05/16/1989 | US4831352 Rectifier transformer |
| 05/16/1989 | US4831344 IC output circuit for use in pulse width modulator |
| 05/11/1989 | DE3736921A1 DC/AC converter (invertor) |
| 05/10/1989 | EP0315336A2 Control circuits for radiographic tubes |
| 05/10/1989 | EP0314982A2 Inverter for high voltages and high frequencies |
| 05/10/1989 | EP0314808A1 Clipper circuit for power transistor circuit and inverter circuit utilizing the same. |
| 05/10/1989 | EP0314681A1 Final stage of a bridge circuit. |
| 05/10/1989 | EP0314669A1 Switched capacitor induction motor drive. |
| 05/09/1989 | US4829413 Converter circuit |
| 05/05/1989 | WO1989004084A1 Quasi-resonant current mode static power conversion method and apparatus |
| 05/05/1989 | WO1989004082A1 High efficiency converter |
| 05/03/1989 | EP0314386A2 A power supply |
| 05/03/1989 | DE3833700A1 Circuit arrangement for a three-point power inverter switching pole |
| 05/02/1989 | US4827392 Control apparatus for a power converter |
| 05/02/1989 | US4827366 Bi-polar power supply regulator bi-polar power supply regulator |
| 05/02/1989 | US4827151 Uninterruptible power supply utilizing a synchronized chopper for power factor improvement |
| 05/02/1989 | US4827150 Uninterruptible power supply inverter circuit |
| 05/02/1989 | CA1253566A1 Precision constant current control with automatic compensation |
| 05/02/1989 | CA1253565A1 Series ferroresonant regulated rectifier with added capacitor shunting the saturating reactor winding |
| 04/26/1989 | CN2036725U Power supply for electric elevator controls |
| 04/25/1989 | US4825351 AC-DC converting apparatus having power factor improving circuit utilizing a photocoupler |
| 04/25/1989 | US4825144 Dual channel current mode switching regulator |
| 04/24/1989 | EP0321466A4 Method of and apparatus for converting radio frequency energy to direct current. |
| 04/19/1989 | EP0311957A1 Process for operating a free "shoot-through" current of a push-pull circuit and proceeding method |
| 04/19/1989 | EP0029067B1 A converter circuit for storing a predetermined quantity of energy |
| 04/19/1989 | CN2036334U Adjustable protector for electric warming mattress |
| 04/18/1989 | US4823251 Controller for instantaneous output current and/or voltage of 3-phase converter |
| 04/18/1989 | US4823250 Electronic control for light weight, portable x-ray system |
| 04/18/1989 | US4823248 High voltage generator |
| 04/18/1989 | US4823247 Stabilized power supply unit |
| 04/18/1989 | US4823065 Frequency converter for the stabilized power supply of asynchronous motors |
| 04/12/1989 | EP0311236A2 LCD compensation for non-optimum voltage conditions |
| 04/12/1989 | EP0052643B1 Converter with two or more independently controlled loads |
| 04/12/1989 | CN2035936U Convertor for step wave similar to sine wave |
| 04/12/1989 | CN2035935U Charging apparatus |
| 04/11/1989 | US4821166 Power-supply circuit |
| 04/11/1989 | US4821165 High voltage DC power supply |
| 04/11/1989 | US4821163 Start-up circuit for an integrated-magnetic power converter |
| 04/11/1989 | US4820940 Control circuits operating with pulse-width modulated signals |
| 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 | DE3832443A1 Device for vehicle control of railway trains |
| 04/06/1989 | DE3832442A1 Device for operating electric loads of a passenger train |
| 04/06/1989 | DE3831142A1 Solar pump system |
| 04/06/1989 | DE3732592A1 Control method and circuit arrangement for a bidirectional rectifier |
| 04/05/1989 | EP0310048A2 Inverter apparatus for system interconnection |
| 04/05/1989 | EP0309919A2 A power conversion apparatus |
| 04/05/1989 | EP0309867A2 Switching power supply |
| 04/04/1989 | US4819157 Overcurrent protection circuit for inverter device including majority circuit for turn-off of majority of conducting transistors |
| 04/04/1989 | US4819147 Integrated AC to DC power supply |
| 04/04/1989 | US4819146 Resonant inverter having frequency control |
| 04/04/1989 | US4819121 Security apparatus for power converter |
| 03/29/1989 | EP0309375A2 Highly efficient conversion circuit for power supplies |
| 03/29/1989 | EP0308765A1 Process and device for the determination of the real value of an inverter's extinction angle |
| 03/29/1989 | EP0297123A4 Regulated ac/dc converter. |
| 03/28/1989 | US4816984 Bridge arm with transistors and recovery diodes |
| 03/28/1989 | US4816983 Enclosed D.C. converting station |
| 03/28/1989 | US4816981 Direct current magnetic polarization component compensation circuit for constant voltage/frequency power supply apparatus |
| 03/28/1989 | US4816741 Switched resistor regulator with diode-snubber for parasitic inductance in switched resistor |
| 03/23/1989 | DE3826524A1 Power supply circuit having balance coil |
| 03/23/1989 | DE3731017A1 Wiring arrangement for semiconductor power switches, which can be turned off via their control connection, in branch pairs of an invertor |
| 03/22/1989 | EP0307719A2 Power source apparatus |
| 03/21/1989 | US4814966 Shunt switched resistor regulator with diode snubber |
| 03/16/1989 | DE3729754A1 Ac-dc konverter Ac-dc converter |
| 03/15/1989 | EP0307190A2 Bi-directional power conversion circuit |
| 03/15/1989 | EP0307057A1 Energy convertor |
| 03/15/1989 | EP0306686A2 Parallel resonant circuit invertor with security circuit |
| 03/08/1989 | CN1031630A High-voltage silicon controlled rectifier with a spark frequency automatic control system |
| 03/07/1989 | US4811192 Inverter apparatus |
| 03/07/1989 | US4811191 CMOS rectifier circuit |
| 03/07/1989 | US4811189 AC rectifier circuit with means for limiting the rectified voltage |
| 03/07/1989 | US4811186 High frequency-high voltage power converter circuit |
| 03/07/1989 | US4811163 Automatic power bus transfer equipment |
| 03/02/1989 | DE3743437C1 Low-loss, three-point invertor which is relieved of switching loads |
| 03/02/1989 | DE3727996A1 Method and device for suppressing unacceptable attempts to turn off power semiconductors which can be switched off |
| 03/01/1989 | EP0304771A1 Control device and method of line dependant high-voltage DC transmission |
| 03/01/1989 | CN2033557U Current-limiting, overcurrent, overvoltage protector of regulated power supply |
| 02/28/1989 | US4809153 Low-inductance bus bar arrangement |
| 02/28/1989 | CA1250651A1 Power control circuit arrangement for maintaining a power output at a substantially constant level |
| 02/23/1989 | DE3727170A1 DC/DC voltage converter having a transformer |
| 02/23/1989 | DE3727117A1 Verfahren zur erzeugung einer niedrigen stabilisierten gleichspannung A method for producing a low DC voltage-stabilized |
| 02/22/1989 | CN1031302A Voltage-transforming method |
| 02/21/1989 | US4807106 Method and circuit for voltage regulation of DC power sources |
| 02/21/1989 | US4807105 Circuit arrangement for producing high DC voltage from medium-frequency AC voltage |
| 02/21/1989 | US4807103 Apparatus for controlling a PWM controlled inverter |
| 02/21/1989 | US4806839 Device for energizing a hermetic motor using inverter |
| 02/16/1989 | DE3804807C1 Electronic voltage transformer |
| 02/16/1989 | DE3726149A1 Switching power output stage |
| 02/14/1989 | US4805082 Regenerative two-quadrant converter |
| 02/14/1989 | US4805063 Fault detector for detecting faults in a DC capacitor circuit |
| 02/14/1989 | US4804923 Voltage control system |
| 02/14/1989 | US4804895 Charge balancing current sampler for a digital motor control |
| 02/09/1989 | DE3725923A1 Converter system having an intermediate-circuit DC voltage which is obtained by means of a rectifier |
| 02/09/1989 | DE3725515A1 Extinguishing thyristors of railway or industrial power converter - using self-commutating rectifier across AC voltage terminals of main rectifier |
| 02/09/1989 | DE3725072A1 Low-loss electronically regulated, bipolar electrical power supply or AC source |
| 02/07/1989 | US4803611 Apparatus for correcting DC component of output voltage in inverter |