Patents for H02H 7 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions (32,726) |
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07/23/1996 | US5539299 Protection switch for a battery powered device |
07/23/1996 | US5539290 Automatic venting system for a vehicle with obstruction detection utilizing dynamically modified thresholds |
07/23/1996 | US5537834 Inductively activated control and protection circuit for refrigeration systems |
07/18/1996 | DE19600047A1 Control unit for stabilised operation of a retractable road vehicle aerial |
07/18/1996 | DE19502059A1 Differential current protection system for single-phase transformer |
07/18/1996 | DE19502016C1 Over-current protection for DC motor pulse width modulation regulator |
07/17/1996 | EP0721695A1 Electric motor with torque detecting means |
07/17/1996 | EP0721686A1 Method and device for measuring and recreating the load current in a power network in connection with the occurrence of faults |
07/16/1996 | US5537015 Semiconductor circuit for a DC motor |
07/16/1996 | US5537013 Control apparatus for power window |
07/11/1996 | DE19514257C1 Method of monitoring motion of objects with motorised adjustment, esp. motor car windows and sun roofs |
07/10/1996 | EP0720782A1 A drive assembly for power operated doors |
07/10/1996 | CN2230989Y Electric motor protector |
07/09/1996 | US5535082 Turn-on control circuit for electric devices |
07/09/1996 | US5534854 Fan failure alert for electronic equipment |
07/09/1996 | US5534853 Electronic apparatus for measuring the parameters of an oil transformer |
07/09/1996 | US5534833 Circuit breaker remote closing operator |
07/09/1996 | US5534760 Compressor control circuit |
07/03/1996 | EP0720270A2 Low-side bidirectional battery disconnect switch |
07/03/1996 | EP0720269A1 Stop control device for single-phase asynchronous motor with capacitor |
07/03/1996 | EP0720268A1 Stop control device for single-phase asynchronous motor with capacitor |
07/03/1996 | EP0720267A1 Semiconductor electronic circuit with overvoltage protection device |
07/03/1996 | EP0720266A1 Process and device for temperature monitoring of a universal motor |
07/03/1996 | EP0720239A2 An optically coupled device |
07/02/1996 | US5532894 Overvoltage protection circuit |
07/02/1996 | US5532638 Superconducting energy storage apparatus |
07/02/1996 | US5532574 Brushless exciter protection circuit |
07/02/1996 | CA2051030C Semiconductor power conversion system having a multiphase bridge circuit |
06/27/1996 | WO1996019859A1 Overcurrent feed preventing device |
06/27/1996 | WO1996019858A1 Circuit and process for operating an adjusting drive |
06/27/1996 | WO1996019857A1 Circuit for detecting overload in an adjusting drive |
06/26/1996 | EP0717885A1 Safety device for moving parts |
06/26/1996 | CN2230064Y Energy-saving control device for ac asynchronous motor |
06/26/1996 | CN1125496A Hybrid alternator with voltage regulator |
06/25/1996 | US5530788 Electric motor drive control apparatus |
06/25/1996 | US5530329 Drive control device for opening/closing member |
06/20/1996 | WO1996019039A1 Vehicle based ac power system |
06/20/1996 | DE4445106A1 Schaltungsanordnung zum Detektieren eines Überlastzustands in einem Verstellantrieb Circuit arrangement for detecting an overload condition in an adjusting |
06/20/1996 | DE4444762A1 Schaltungsanordnung und Verfahren zum Betreiben eines Verstellantriebs Circuit arrangement and method for operating an adjusting drive |
06/19/1996 | EP0717498A1 A circuit for detecting a short circuit in a low side driven load |
06/19/1996 | EP0716781A1 Device for operating a power consumer in a vehicle |
06/19/1996 | CN2229729Y Intelligent crystal thyratron trigger plate |
06/19/1996 | CN2229724Y Phase-faulty and phase interruption full-protector |
06/19/1996 | CN2229723Y Phase loss and phase-sequence protection relay |
06/19/1996 | CN2229722Y Protector for short circuit |
06/19/1996 | CN1124880A Multifunctional controlled cabinet for load shunting switch |
06/19/1996 | CN1124874A Integrated protector for program-controlled high-voltage switch |
06/18/1996 | US5528444 Automatic overvoltage protection for an alternator in a locomotive propulsion system |
06/16/1996 | CA2165226A1 Circuit for detecting a short circuit in a low side driven load |
06/13/1996 | WO1996018229A1 Circuit breaker with an electronic trip element and a bypass circuit |
06/13/1996 | WO1996018017A1 A safety device for an electrically operated window |
06/12/1996 | EP0716492A1 Electric motor control device |
06/12/1996 | EP0716214A2 Method and device for controlling the stopping of electric motor driven roller shutters or the like |
06/12/1996 | CN2229113Y Universal phase interruption protector for three-phase motor |
06/11/1996 | US5526215 Secondary cell protection unit for protecting a secondary cell from overdischarge or overcharge without excessive power consumption |
06/11/1996 | US5525881 Method and apparatus for the thermal control of an electric motor in a vehicle, and their application to a power assisted steering system |
06/11/1996 | US5525878 Apparatus and method for controlling an electric motor |
06/11/1996 | US5525876 Safety cutoff power window control device |
06/11/1996 | US5525856 Light irradiation device |
06/11/1996 | US5524448 Minimum off-time device for protecting refrigeration compressors after a power interruption |
06/05/1996 | EP0715328A1 Protective device |
06/05/1996 | EP0714568A1 Device for driving a power controlling element of a vehicle driving unit |
06/05/1996 | EP0714565A1 Arrangement for detecting stator earth leakages in three-phase current machines |
06/05/1996 | DE4444551A1 Current transformer disconnection terminal |
06/05/1996 | CN1123972A Current limiter for voltage/frequency type inverter |
06/04/1996 | US5523938 Differential current fault protection for an AC/DC hybrid system and method therefor |
06/04/1996 | US5523653 Lighting apparatus with improved current overload protection circuit |
06/04/1996 | US5523631 Control system for powering plural inductive loads from a single inverter source |
05/30/1996 | WO1996016476A1 High speed overvoltage detection and protection circuit |
05/29/1996 | EP0714052A2 Method for monitoring the opening and closing process in a system with at least one electric motor driven part |
05/29/1996 | EP0713580A1 Process and device for monitoring the temperature of an electric generator |
05/28/1996 | US5521474 Method for monitoring movable elements |
05/28/1996 | US5521473 Apparatus for driving and controlling power window while prohibiting drive of the motor during an initial period |
05/23/1996 | WO1996015571A1 Circuit arrangement |
05/23/1996 | WO1996015570A1 Protection system for a shorted rectifying diode within a synchronous generator |
05/23/1996 | DE4441575A1 Vorrichtung und Verfahren zum schnellen Entladen einer supraleitenden Magnetspule Apparatus and method for rapidly discharging a superconducting magnet coil |
05/22/1996 | EP0713280A2 Electronically commutated motor |
05/22/1996 | EP0713228A1 Current limiting device |
05/22/1996 | EP0713163A1 Protection circuit and method for power transistors, voltage regulator using the same |
05/22/1996 | EP0521912B1 Arcing fault detector |
05/22/1996 | CN1122963A DC power supply circuit |
05/21/1996 | US5519563 Protection circuit for electric cells from overcharge and overdischarge using a plurality of detection units of a single chip type |
05/21/1996 | US5519295 Electrically operated actuator having a capacitor storing energy for returning the actuator to a preferred position upon power failure |
05/15/1996 | EP0712007A2 Battery operated electric razor or hair clippers |
05/15/1996 | EP0657090B1 Automatic zero-point recognition |
05/14/1996 | US5517396 Power supply apparatus having AC-DC converter |
05/09/1996 | WO1996013890A1 Protection switch for a battery powered device |
05/08/1996 | CN1122173A Process for regulating an automatic door operated by a drive motor |
05/07/1996 | US5515231 Thyristor valve arrester and DC power transmission thyristor valve using the same |
05/07/1996 | US5515229 Overcurrent protector with overheat prevention means |
05/07/1996 | US5515225 Integrated circuit protected against electrostatic overvoltages |
05/07/1996 | US5514940 Control device for an electrically powered foldable rearview mirror for automobiles |
05/02/1996 | WO1996013091A1 Transient suppressor for electronics systems |
05/02/1996 | WO1996013090A1 Detection and isolation circuit for a failed bridge power rectifier and an electrical system employing same |
05/02/1996 | DE4438592A1 Thyristor short-circuiter for quenching interference arcs in LV power-thyristor type switching systems |
05/02/1996 | DE19539925A1 Servo-drive arrangement for opening and closing motor vehicle window |
05/01/1996 | CN2226350Y Automatic phase interruption protector for three-phase motor |
05/01/1996 | CN2226349Y No-load monitor for motor |
04/30/1996 | US5513061 Apparatus and method for distributing electrical power |
04/30/1996 | US5513058 DC link circuit for an electronically commutated motor |