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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10/06/2004 | EP1465046A1 Device for protection against polarity reversal |
10/06/2004 | EP1464776A2 Vibrating device for compacting concrete |
10/06/2004 | CN2646924Y Automatic storage battery polarity butt joint device |
09/23/2004 | US20040184208 Power protecting device for electrical power source and load |
09/22/2004 | CN2643529Y Handset battery charger |
09/21/2004 | US6795287 Static excitation system having capability of eliminating shaft vibrations of a generator and overvoltage when underexited |
09/16/2004 | DE19616851B4 Schutzgerät zum Vermeiden einer unerwünschten Stromversorgung Apparatus for avoiding unwanted power supply |
09/15/2004 | EP1457097A1 Electronic ballast with an overvoltage monitoring device |
09/15/2004 | EP1456925A1 A polarity protection implemented with a mosfet |
09/09/2004 | DE10013110B4 Selektiver Leitungsschutzschalter Selective circuit breaker |
09/02/2004 | WO2004075390A2 Direct current motor control circuit and wiper system using said circuit |
09/01/2004 | EP1453171A1 Electronic protection circuit |
08/26/2004 | WO2004073003A2 Switch sensing to prevent inadvertent motor startup |
08/17/2004 | US6777830 System for reliable prevention of the restarting of a machine |
08/12/2004 | US20040156152 Device for Error Detection and Locking of Power Breakers |
08/12/2004 | US20040155532 Method for sensing switch closure to prevent inadvertent startup |
08/12/2004 | US20040155529 Method and system for sensing switch position to prevent inadvertent startup of a motor |
08/11/2004 | CN1519999A Equipment and method for detecting and protecting state of power source |
08/10/2004 | US6774607 Charger connected to a load via a switching circuit to prevent an incorrect polarity connection |
08/05/2004 | WO2004066466A1 Electrical safety lockout mechanism for power tools and other hazardous machinery |
08/05/2004 | US20040150927 High side reverse and overvoltage transient protection |
08/04/2004 | CN1160838C Operating device for carrying out switching operations in switching system |
07/29/2004 | US20040145846 Electromagnetic circuit breaker assembly having reverse polarity protection |
07/29/2004 | US20040145353 Reverse battery protection circuit |
07/28/2004 | EP1248928B1 Protection device against the undesirable initiation of a machinery |
07/27/2004 | US6768314 Method for detecting improper connection of connector |
07/22/2004 | US20040141276 Electrical transient protection circuit |
07/21/2004 | CN2627707Y Reverse polarity of external power source preventing circuit for DC power supply unit |
07/21/2004 | CN1514523A 电气设备安全装置 Electrical equipment safety devices |
07/21/2004 | CN1158736C Automatic pole exchanging circuit with current detecting feedback function |
07/14/2004 | CN2626110Y Automatic convertor for positive-negative polarity of two-wire system transmitter |
07/14/2004 | CN2626108Y Device for automatic butt jointing of storage battery polarity |
07/14/2004 | CN1512641A Detecting and protective device for preventing device frmo forming short circuit on circuit board |
07/08/2004 | DE19727940B4 Schaltungsanordnung Circuitry |
07/07/2004 | EP1435682A1 Electronic apparatus |
06/30/2004 | CN2622903Y Output polar auto butt-jointing device |
06/16/2004 | EP1429439A1 Reverse battery protection circuit |
06/16/2004 | EP1429438A2 Switching error protective apparatus and configuration method thereof |
06/10/2004 | US20040109272 Power converter with polarity reversal and inrush current protection circuit |
06/08/2004 | US6747458 Method for monitoring the ground potential of a rectifier drive |
06/08/2004 | US6747422 High-voltage discharge lamp device |
05/27/2004 | DE202004004693U1 Machine e.g. machine tool driven by at least one three-phase current motor, includes rotary field monitor and phase drop-out detector with restart protection |
05/26/2004 | EP1421671A1 Method and apparatus for controlling power supplied to a motor |
05/20/2004 | US20040095815 Hard disk drive (HDD) electrical over voltage stress (EOS) systems and methods |
05/19/2004 | EP1419572A1 Device and method for monitoring the connection of an electrical supply unit |
05/18/2004 | US6738243 Apparatus and method for servicing a distribution bus |
05/13/2004 | DE4326423B4 Anordnung zur Entkopplung eines Verbrauchers von einer Gleichspannungs-Versorgungsquelle Decoupling arrangement for a load from a DC voltage supply source |
05/12/2004 | CN2615944Y Laser protector |
05/06/2004 | US20040085051 Static excitation system having capability of eliminating shaft vibrations of a generator and overvoltage when underexited |
04/22/2004 | WO2002017456A8 Protective relay |
04/15/2004 | US20040070905 Hard disk drive (HDD) electrical over voltage stress (EOS) systems and methods |
04/15/2004 | US20040070896 Electrical ground protection device and method |
04/15/2004 | DE10246107A1 Error and fault monitoring method especially for motor vehicle electrical loads, involves measuring load voltage in one average resistance measurement by measuring shunt |
04/14/2004 | CN1146110C Circuit with protection to error-polarity connection of power supply |
03/31/2004 | CN2609260Y Shore-ship power transmission device |
03/25/2004 | DE4339016B4 Verfahren zum Betrieb eines Netzteiles Method for operating a power supply |
03/24/2004 | EP1401077A1 A circuit for protection against polarity reversal in the supply of an electric circuit |
03/16/2004 | US6707654 Protection device that shuts off in case of reversed connection |
03/10/2004 | CN1141771C Battery pack protecting circuit and battery pack contg same |
03/03/2004 | CN1140727C Air conditioner |
03/02/2004 | US6700221 Electronic unit and method for detecting a polarity inversion of the onboard power supply voltage in motor vehicles |
02/18/2004 | CN2604018Y Connector plugging status testing circuit |
02/12/2004 | DE20314487U1 Electronic teaching and experimenting system has pole protection and prevention of over voltage and excess current |
02/04/2004 | CN1137605C Circuit arrangement |
02/03/2004 | US6687102 Battery-operated power supply unit |
01/06/2004 | US6674621 IC PMOS Schottky reverse bias protection structure |
01/01/2004 | US20040000909 Device for distributing electrical energy and method for monitoring the distribution of energy |
12/24/2003 | CN2595046Y Battery cable for vehicle |
12/10/2003 | CN2591835Y Electric power source polar protective circuit with overvoltage protection |
12/02/2003 | US6657839 Protective relay |
12/02/2003 | US6657837 Circuit breaker incorporating fault lockout protection |
12/02/2003 | US6657317 Electronic device with erroneous operation button state judging |
11/27/2003 | US20030218844 Protection circuit protecting against voltage irregularities |
11/27/2003 | US20030218843 Power supply protection circuit |
11/25/2003 | US6653751 Fault tolerant AC transfer switch |
11/18/2003 | US6650520 Power supply reverse bias protection circuit for protecting both analog and digital devices coupled thereto |
10/29/2003 | EP1357658A1 Protection circuit against voltage transients and polarity reversal |
10/29/2003 | CN2583854Y Protective circuit of intelligent electronic device |
10/28/2003 | US6639444 Protection circuit |
10/16/2003 | US20030193764 Short circuit protection for a power isolation device and associated diode |
10/15/2003 | CN1449082A Monitoring device, electrical machine tool, current supply device, and associated method of operation |
10/02/2003 | US20030184931 Pre-emptive circuit breaker with arc fault and fault lockout short circuit protection |
10/02/2003 | US20030184308 Monitoring device, electrical machine tool, current supply device, and associated method of operation |
10/01/2003 | EP1349253A2 Control circuit, in particular cooker timer, for cooking appliance |
10/01/2003 | CN1445896A Power souce commutation possessing reverse connected polarity and protection circuit for surge current |
09/17/2003 | CN2574274Y Automatic testing and power polarity switching power connecting conductor device |
09/04/2003 | WO2003073579A1 Apparatus for preventing erroneous input of power supply |
09/04/2003 | US20030164694 Electronic circuit for an energy supply device, especially for a charging device for batteries |
09/02/2003 | US6614217 Power supply negative phase detecting circuit |
08/28/2003 | WO2003071650A1 Method and device for reducing peak loads in motor vehicle supply systems |
08/28/2003 | US20030161083 Method for protecting a dc generator against overvoltage |
08/26/2003 | US6611410 Positive supply lead reverse polarity protection circuit |
08/13/2003 | CN2566516Y Automatic polarity reversing safety connection device |
08/12/2003 | US6606227 High voltage battery cutout circuit for a motor vehicle electrical system |
07/30/2003 | CN1433116A Leakage protector circuit for electric water heater |
07/22/2003 | US6597552 Method for preventing making on electrical short circuits existing in branches and corresponding device |
07/22/2003 | US6597138 Method and apparatus for controlling power supplied to a motor |
07/17/2003 | US20030133239 Electrical safety lockout mechanism for power tools and other hazardous machinery |
07/17/2003 | US20030133238 Utility control and autonomous disconnection of distributed generation from a power distribution system |
07/03/2003 | WO2003055281A1 Electronic ballast with an overvoltage monitoring device |