| Patents for H02H 11 - Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result (2,416) |
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| 07/22/2009 | CN100517903C Protecting circuit of AC power supply for preventing misconnection |
| 07/22/2009 | CN100517902C Driving circuit for power semiconductor element |
| 07/21/2009 | US7564224 Power-generator control method and apparatus using externally applied periodic signal |
| 07/14/2009 | US7561404 Biased-MOSFET active bridge |
| 07/08/2009 | CN201270416Y Reverse connection protection circuit |
| 07/08/2009 | CN101478153A Pilot type control circuit |
| 07/07/2009 | US7558031 Intelligent automatic bypass for a motor control device |
| 07/01/2009 | CN101471564A Voltage control circuit |
| 06/17/2009 | EP2071726A2 Load driving device |
| 06/17/2009 | EP2071723A2 Load driving device |
| 06/17/2009 | EP2071690A2 Overvoltage protection circuit and electronic device comprising the same |
| 06/10/2009 | CN201256291Y Three-wire type current output transmitter protection circuit |
| 06/03/2009 | CN201252402Y Protective circuit for preventing reverse connection of power supply |
| 05/27/2009 | CN201247954Y Self-checking circuit for switchingin three-phase rectifier |
| 05/20/2009 | EP2061127A1 A detection circuit and a method for detecting a wrong power supply voltage |
| 05/20/2009 | CN201243203Y Safety protection device for electric appliance |
| 05/20/2009 | CN100490267C Single-phase asynchronous motor protector |
| 05/14/2009 | US20090121544 Electrical power control system |
| 05/14/2009 | DE102007054297A1 Fuse load circuit breaker for e.g. protecting consumer, has integrated resistance measuring instrument with current generator for producing test current, where instrument measures resistance of fuse |
| 05/14/2009 | DE102007036680B4 Schaltungsvorrichtung zur Erkennung einer unterbrochenen Masseleitung Circuit device for detecting a broken ground wire |
| 05/13/2009 | CN100488333C Electronic ballast with an overvoltage monitoring device |
| 05/07/2009 | DE112006003743T5 Ein automatischer Pol An automatic pole |
| 05/07/2009 | DE102006044653B4 Ein Gerät zum automatischen Erkennen der Batterie-Polaritäten A device for automatically detecting the battery polarities |
| 05/06/2009 | CN201234211Y Automatic shifting control device for three-phase AC |
| 05/06/2009 | CN201234134Y Protection circuit for electric power polarity reverse connection |
| 04/30/2009 | WO2009053488A1 Operating a substation automation system |
| 04/30/2009 | WO2009053309A1 System level testing for substation automation systems |
| 04/30/2009 | DE102008045410A1 Halbleitervorrichtung mit IGBT mit eingebauter Diode und Halbleitervorrichtung mit DMOS mit eingebauter Diode A semiconductor device having IGBT with built-in diode and semiconductor device having DMOS with built-in diode |
| 04/29/2009 | CN101420123A Solar energy controller preventing reverse connection of accumulator |
| 04/28/2009 | US7525222 Sensor assembly and sensing system for sensing human tissue in a protected area of a machine |
| 04/22/2009 | CN201226446Y Electric control device for preventing generator from non-synchronization parallel |
| 04/21/2009 | US7521904 Method and device for detecting errors in charging lines |
| 04/16/2009 | US20090096295 Electronic device and method of accessing inside of electronic device |
| 04/09/2009 | DE102007047309A1 Vorrichtung zur Bestimmung und/oder Überwachung einer Prozessgröße Apparatus for determining and / or monitoring a process variable |
| 04/08/2009 | CN201219155Y Multi-functional power supply socket |
| 04/07/2009 | US7515725 Electronic battery-powered hearing instrument, and method for operating such a hearing instrument |
| 04/02/2009 | WO2009039898A1 A detection circuit and a method for detecting a wrong supply voltage |
| 04/02/2009 | CA2697706A1 A detection circuit and a method for detecting a wrong supply voltage |
| 04/01/2009 | CN201215893Y Circuit for accumulator charging machine |
| 04/01/2009 | CN101399438A Apparatus capable of recognizing zero phase line and switching polarity |
| 03/26/2009 | DE102008045968A1 Stromversorgungs-Steuergerät A power supply control device |
| 03/18/2009 | CN101388559A Manual and automatic integrated voltage recognition device |
| 03/18/2009 | CN100470993C Circuit system for preventing connector from fault connection |
| 03/17/2009 | US7504750 Device of protection against a polarity reversal |
| 03/12/2009 | DE202008016925U1 Überbrückungsgerät zur Überbrückung einer Netzsicherung The bridging apparatus for bridging a mains fuse |
| 03/05/2009 | WO2009026629A1 Transformer control circuit |
| 02/26/2009 | DE102007036680A1 Circuit device for operating e.g. water pump, in motor vehicle, has detection device causing stabilization circuit and diagnostic connection to be high-resistant to positive supply voltage during contact interruption of ground line |
| 02/19/2009 | WO2008157695A3 Fault protection device with ground trip delay and method |
| 02/18/2009 | CN201197081Y Electric tool, wireless electric tool system and adapter |
| 02/12/2009 | DE202008007933U1 System zum Bereitstellen von Handshaking von Gerät zu Gerät über ein Energieversorgungs-Signal A system for providing handshaking from device to device via a power supply signal |
| 02/04/2009 | EP2020072A1 Charging and rechargable devices |
| 02/04/2009 | CN101359826A Novel communication protecting equipment |
| 01/28/2009 | CN101355259A Portable communication device and method for charging through discernment of charging cable |
| 01/22/2009 | WO2009010328A1 Polarity reversal protection unit |
| 01/14/2009 | CN100452613C PC-automatic switch with regional interlock |
| 01/09/2009 | CA2636870A1 Power tools |
| 01/07/2009 | CN101341641A Motor control circuit with malfunction monitoring |
| 12/30/2008 | US7471017 Paper-breaker touching safety protector |
| 12/24/2008 | CA2704338A1 Fault protection device with ground trip delay and method |
| 12/09/2008 | US7462952 Electrical power control system |
| 11/27/2008 | US20080291598 Output stage and related logic control method applied to source driver/chip |
| 11/19/2008 | CN100435445C Automatic electrode |
| 11/05/2008 | CN100431235C Method and system for sensing switch position to prevent inadvertent startup of a motor |
| 10/29/2008 | CN101297447A Circuit testing closer apparatus and method with in-rush current awareness |
| 10/28/2008 | US7443053 Control circuit and method of electric output modes |
| 10/23/2008 | DE202008010454U1 Einschaltschutzeinrichtung für ein an einer Netzspannung betreibbares Elektrogerät Einschaltschutzeinrichtung for an operable at a mains voltage electric appliance |
| 10/21/2008 | US7439639 Safety switching apparatus for safe disconnection of an electrical load |
| 10/21/2008 | US7439638 Electronic proximity switching device |
| 10/15/2008 | CN101286719A Motor driving device, lockedrotor protecting method and cooling device using the same |
| 10/15/2008 | CN100426613C Power souce commutation possessing reverse connected polarity and protection circuit for surge current |
| 10/08/2008 | EP1978617A1 Protection device |
| 09/25/2008 | US20080231122 Facility and method for the automatic recognition and differentiation of single-channel or dual-channel electronic sensors connected to a dual-channel safety combination |
| 09/25/2008 | DE102007014174A1 Electrical switch for controlling e.g. household appliance, has external interface controlling switching condition of switching section, operating condition of electrical device and/or display of switching and operating conditions by signal |
| 09/17/2008 | CN100419263C Compressor having internally mounted inverter |
| 09/12/2008 | WO2008108330A1 Glow plug drive device |
| 09/11/2008 | US20080218923 Suppressing arc discharges |
| 09/10/2008 | CN201113465Y Notebook-type computer vehicle-mounted electric supply matcher |
| 09/03/2008 | EP1964231A1 Motor control circuit with malfunction monitoring |
| 09/02/2008 | US7420297 Combination control system with intermediate module |
| 08/28/2008 | US20080204951 Safety device for prevention of electrical shocks |
| 08/28/2008 | US20080203827 Electrical supply unit |
| 08/12/2008 | US7411319 Safety relay system |
| 08/07/2008 | WO2008068275A3 Device for controlling the mode of operation of an electric circuit in a motor vehicle |
| 08/07/2008 | WO2007067865A3 Sensor assembly and sensing system for sensing human tissue in a protected area of a machine |
| 08/06/2008 | CN100409143C Decision circuit for power supply inverter |
| 07/30/2008 | EP1949516A1 Circuit testing closer apparatus and method with in-rush current awareness |
| 07/16/2008 | CN201087925Y Short-circuit protection circuit of I/O connector |
| 07/10/2008 | WO2008080793A1 Motor vehicle controller with polarity-reversal protection |
| 07/09/2008 | EP1942027A1 Asymmetric fault detection and protection with AC solid state power controllers (SSPC) |
| 07/09/2008 | CN100401603C Apparatus and method for maintaining distribution bus |
| 07/03/2008 | WO2008077942A1 System and method to determine the impedance of a disconnected electrical facility |
| 07/02/2008 | CN101212139A Main board power supply protection circuit |
| 07/02/2008 | CN100399669C Method for preventing error charging for charger automatic judging charging storage battary voltage |
| 06/25/2008 | EP1936773A1 System and method to detect a forgotten safety ground of an electrical facility |
| 06/24/2008 | US7391134 Electrical safety lockout mechanism for power tools and other hazardous machinery |
| 06/19/2008 | DE102006057529A1 Kontrollvorrichtung, Energieversorgungssystem, Verfahren und Computerprogrammprodukt Control device, power supply system, method and computer program product |
| 06/18/2008 | CN201075822Y Direct-current power supply converter |
| 06/18/2008 | CN100395934C Equipment and method for detecting and protecting state of power source |
| 06/11/2008 | EP1929606A1 High current end power stage |
| 06/10/2008 | US7385316 Safety device for an industrial boiler comprising relays mounted on a printed circuit board |