| 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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| 06/06/2007 | DE202007004436U1 Schalt-Spannungswandler Switching voltage converter |
| 06/06/2007 | DE19710338C5 Verfahren zur Steuerung des Schließvorgangs von Schließvorrichtungen mit mindestens einem elektromotorisch bewegten Teil Method for controlling the closing process of closing devices with at least one electric motor moving part |
| 06/06/2007 | DE102006027091A1 Elektronikeinheit zur Steuerung und/oder Regelung eines elektrischen Antriebsmotors Electronic unit for controlling and / or regulating an electric drive motor |
| 06/06/2007 | CN2909687Y Power supply converter of multifunction DC low tension electric blanket |
| 06/06/2007 | CN2909658Y Protection circuit for charger when battery pole back connection |
| 06/06/2007 | CN2909367Y Plate power supply protection circuit |
| 06/06/2007 | CN1976164A Battery charging system and related method for preventing overheating while charging |
| 06/06/2007 | CN1976160A A large electric system vulnerable line identifying method |
| 06/06/2007 | CN1976159A Magnetic disc array system and electric source protector |
| 06/06/2007 | CN1976154A Electric relay simulated model utilizing script describing to realize |
| 06/06/2007 | CN1976153A Fault information organizing method in electric network fault information system |
| 06/06/2007 | CN1976152A 电弧故障检测器 An arc fault detector |
| 06/06/2007 | CN1320745C Motor drive system |
| 06/06/2007 | CN1320741C Electric windows driving apparatus |
| 06/06/2007 | CN1320717C Over-voltage/over-current protective circuit of battery and adjustable adaptor current limiting circuit |
| 06/05/2007 | US7228206 Electrical system for a ship |
| 06/05/2007 | US7227763 Power supply apparatus using half-bridge circuit |
| 06/05/2007 | US7227732 Apparatus and method for controlling open/close timing of relay |
| 06/05/2007 | US7227731 Apparatus for offset correcting high-side and low-side sinking/sourcing over-current protection |
| 06/05/2007 | US7227339 Power generation controller of vehicle power generator |
| 06/05/2007 | US7227325 Method and arrangement for protecting a frequency converter |
| 06/05/2007 | US7227316 Protective and measure device for multiple cold cathode fluorescent lamps |
| 06/05/2007 | US7227272 Control apparatus for electrical generator of motor vehicle |
| 06/05/2007 | CA2461179C Movable barrier operator |
| 05/31/2007 | WO2007061219A1 Device for limiting current of electric appliance |
| 05/31/2007 | US20070121258 Switching power supply and semiconductor device used therefor |
| 05/31/2007 | US20070121256 Portable electronic device carrying apparatus and method of use thereof |
| 05/31/2007 | US20070120423 Switching Power Supply Controller With Built-In Supply Switching |
| 05/30/2007 | EP1790071A1 Control and power module for a rotating electrical machine |
| 05/30/2007 | EP1789295A1 Device and method for operation of an electromechanically-operated parking brake |
| 05/30/2007 | EP1661223B1 Switching device |
| 05/30/2007 | EP1131873B1 A system and a method for protecting an electric motor and its control circuit, and an electric motor |
| 05/30/2007 | CN2907166Y General miner lamp short circuit protector |
| 05/30/2007 | CN2907087Y Single-phase motor regulator |
| 05/30/2007 | CN2907081Y Electric antenna motor control circuit |
| 05/30/2007 | CN2907037Y Battery charger for emergency lamp |
| 05/30/2007 | CN1973415A Load driving circuit abnormality monitoring device and method |
| 05/30/2007 | CN1972066A Charging protection circuit |
| 05/30/2007 | CN1972057A A method for judging multi-fault based on line fault state and real power on control section |
| 05/30/2007 | CN1972056A Compressor motor drive circuit over-current protection structure |
| 05/30/2007 | CN1972055A Wind turbine over-voltage protection |
| 05/30/2007 | CN1972054A A relay protection system which can distinguish short-circuit and harmonic and its working method |
| 05/30/2007 | CN1319240C Distance relay device |
| 05/30/2007 | CN1319239C Overload current protection device using magnetic impedance element |
| 05/30/2007 | CN1319238C Generator protecting monitor and its use |
| 05/29/2007 | US7225087 Method and apparatus for detecting unintentional islanding of utility grid |
| 05/29/2007 | US7224590 Forward converter with synchronous rectifier and reverse current control |
| 05/29/2007 | US7224563 Method and device for circuit control |
| 05/29/2007 | US7224562 Short-circuit protective circuit |
| 05/29/2007 | US7224150 Redundancy circuit for series-connected diodes |
| 05/29/2007 | US7224144 Control of vehicle generator using PWM signal with specially determined duty and frequency |
| 05/29/2007 | US7222518 Transformer monitoring system |
| 05/29/2007 | US7222493 Compressor diagnostic system |
| 05/24/2007 | WO2007057240A1 Method and device for fault detection in an n-winding three-phase power transformer |
| 05/24/2007 | US20070115598 Superconductor current limiting system and method |
| 05/24/2007 | US20070114976 Control apparatus for automotive alternator having capability of reliably detecting disconnection between alternator and battery |
| 05/23/2007 | EP1788685A2 Electronic Unit for controlling an electric drive |
| 05/23/2007 | EP1787373A1 Method and apparatus for generator control |
| 05/23/2007 | EP1787135A2 Traveling wave based relay protection |
| 05/23/2007 | CN2904475Y Control circuit for DC electric machine |
| 05/23/2007 | CN2904460Y High power switch electric source |
| 05/23/2007 | CN2904457Y Three state feedback power controlling circuit |
| 05/23/2007 | CN2904420Y Fault and oscillation detector in relay protector based on DSP |
| 05/23/2007 | CN2904419Y Controllable protector for battery |
| 05/23/2007 | CN2904418Y Primary current limiting circuit for switch power |
| 05/23/2007 | CN2904417Y Subtraction phase overcurrent automatic protection switch for electric machine |
| 05/23/2007 | CN1969437A Method for error handling in a converter circuit for wiring of three voltage levels |
| 05/23/2007 | CN1967966A Rechargeable battery pack for a power tool |
| 05/23/2007 | CN1967962A Self adapting circuit of polarity of charging and discharging |
| 05/23/2007 | CN1967959A Charge and discharge protecting module of lithium dynamical battery |
| 05/23/2007 | CN1967958A Waveform sine principle based transformer excitation flow recognition method |
| 05/23/2007 | CN1967957A Direct current current-limiting device of neutral point of grounding transformer |
| 05/23/2007 | CN1966304A Electric automobile control and charge protection device |
| 05/23/2007 | CN1317820C Integrated generator controller for high-voltage DC. generating system |
| 05/18/2007 | WO2007056564A1 A tool for generating fault response tolerances for a switching device |
| 05/18/2007 | CA2843561A1 Lithium polymer battery powered intravenous fluid warmer |
| 05/17/2007 | US20070109695 Multiple UL class II secondary power sources |
| 05/16/2007 | EP1786092A1 Electric motor driving device, and air conditioner using the same |
| 05/16/2007 | EP1786083A1 Method and system for monitoring power transformers |
| 05/16/2007 | CN2901718Y Anti-short circuit safety device of mobile phone |
| 05/16/2007 | CN2901663Y Charging machine of automatic changing voltage |
| 05/16/2007 | CN2901563Y Breaker protector |
| 05/16/2007 | CN2901527Y Energy saving transformer |
| 05/16/2007 | CN2901387Y Delay water pumping integrated controller |
| 05/16/2007 | CN1965457A Battery pack protecting circuit and battery pack |
| 05/16/2007 | CN1965455A Isolated measurement circuit for sensor resistance |
| 05/16/2007 | CN1964149A A differential protection method for negative sequence current of large power transformer |
| 05/16/2007 | CN1316708C Protection circuit-equipped secondary battery |
| 05/16/2007 | CN1316707C Overload current protection device using magnetic impedance element |
| 05/15/2007 | US7218540 Power semiconductor device |
| 05/15/2007 | US7218534 Switching power supply circuit |
| 05/15/2007 | US7218494 Overload current protection device using magnetic impedance element |
| 05/15/2007 | US7218089 Method and apparatus for implementing same phase power supply scheme |
| 05/15/2007 | US7218014 Wind energy system, as well as a method for operating such a wind energy system |
| 05/10/2007 | WO2007051534A1 Adjusting device and control device of a vehicle |
| 05/10/2007 | WO2007051322A1 Arrangement and method for protecting an electrical power system |
| 05/10/2007 | US20070103835 Remote power management and monitoring system with remote circuit breaker control |
| 05/10/2007 | US20070103831 Intelligent safety device for vehicle on-board electric equipment |
| 05/10/2007 | US20070103823 Protection system for medium-voltage potential transformers |
| 05/10/2007 | US20070103822 System, device, and method for over-current relays protecting motors |