Patents
Patents for H02H 11 - Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result (2,416)
10/2004
10/06/2004EP1465046A1 Device for protection against polarity reversal
10/06/2004EP1464776A2 Vibrating device for compacting concrete
10/06/2004CN2646924Y Automatic storage battery polarity butt joint device
09/2004
09/23/2004US20040184208 Power protecting device for electrical power source and load
09/22/2004CN2643529Y Handset battery charger
09/21/2004US6795287 Static excitation system having capability of eliminating shaft vibrations of a generator and overvoltage when underexited
09/16/2004DE19616851B4 Schutzgerät zum Vermeiden einer unerwünschten Stromversorgung Apparatus for avoiding unwanted power supply
09/15/2004EP1457097A1 Electronic ballast with an overvoltage monitoring device
09/15/2004EP1456925A1 A polarity protection implemented with a mosfet
09/09/2004DE10013110B4 Selektiver Leitungsschutzschalter Selective circuit breaker
09/02/2004WO2004075390A2 Direct current motor control circuit and wiper system using said circuit
09/01/2004EP1453171A1 Electronic protection circuit
08/2004
08/26/2004WO2004073003A2 Switch sensing to prevent inadvertent motor startup
08/17/2004US6777830 System for reliable prevention of the restarting of a machine
08/12/2004US20040156152 Device for Error Detection and Locking of Power Breakers
08/12/2004US20040155532 Method for sensing switch closure to prevent inadvertent startup
08/12/2004US20040155529 Method and system for sensing switch position to prevent inadvertent startup of a motor
08/11/2004CN1519999A Equipment and method for detecting and protecting state of power source
08/10/2004US6774607 Charger connected to a load via a switching circuit to prevent an incorrect polarity connection
08/05/2004WO2004066466A1 Electrical safety lockout mechanism for power tools and other hazardous machinery
08/05/2004US20040150927 High side reverse and overvoltage transient protection
08/04/2004CN1160838C Operating device for carrying out switching operations in switching system
07/2004
07/29/2004US20040145846 Electromagnetic circuit breaker assembly having reverse polarity protection
07/29/2004US20040145353 Reverse battery protection circuit
07/28/2004EP1248928B1 Protection device against the undesirable initiation of a machinery
07/27/2004US6768314 Method for detecting improper connection of connector
07/22/2004US20040141276 Electrical transient protection circuit
07/21/2004CN2627707Y Reverse polarity of external power source preventing circuit for DC power supply unit
07/21/2004CN1514523A 电气设备安全装置 Electrical equipment safety devices
07/21/2004CN1158736C Automatic pole exchanging circuit with current detecting feedback function
07/14/2004CN2626110Y Automatic convertor for positive-negative polarity of two-wire system transmitter
07/14/2004CN2626108Y Device for automatic butt jointing of storage battery polarity
07/14/2004CN1512641A Detecting and protective device for preventing device frmo forming short circuit on circuit board
07/08/2004DE19727940B4 Schaltungsanordnung Circuitry
07/07/2004EP1435682A1 Electronic apparatus
06/2004
06/30/2004CN2622903Y Output polar auto butt-jointing device
06/16/2004EP1429439A1 Reverse battery protection circuit
06/16/2004EP1429438A2 Switching error protective apparatus and configuration method thereof
06/10/2004US20040109272 Power converter with polarity reversal and inrush current protection circuit
06/08/2004US6747458 Method for monitoring the ground potential of a rectifier drive
06/08/2004US6747422 High-voltage discharge lamp device
05/2004
05/27/2004DE202004004693U1 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
05/26/2004EP1421671A1 Method and apparatus for controlling power supplied to a motor
05/20/2004US20040095815 Hard disk drive (HDD) electrical over voltage stress (EOS) systems and methods
05/19/2004EP1419572A1 Device and method for monitoring the connection of an electrical supply unit
05/18/2004US6738243 Apparatus and method for servicing a distribution bus
05/13/2004DE4326423B4 Anordnung zur Entkopplung eines Verbrauchers von einer Gleichspannungs-Versorgungsquelle Decoupling arrangement for a load from a DC voltage supply source
05/12/2004CN2615944Y Laser protector
05/06/2004US20040085051 Static excitation system having capability of eliminating shaft vibrations of a generator and overvoltage when underexited
04/2004
04/22/2004WO2002017456A8 Protective relay
04/15/2004US20040070905 Hard disk drive (HDD) electrical over voltage stress (EOS) systems and methods
04/15/2004US20040070896 Electrical ground protection device and method
04/15/2004DE10246107A1 Error and fault monitoring method especially for motor vehicle electrical loads, involves measuring load voltage in one average resistance measurement by measuring shunt
04/14/2004CN1146110C Circuit with protection to error-polarity connection of power supply
03/2004
03/31/2004CN2609260Y Shore-ship power transmission device
03/25/2004DE4339016B4 Verfahren zum Betrieb eines Netzteiles Method for operating a power supply
03/24/2004EP1401077A1 A circuit for protection against polarity reversal in the supply of an electric circuit
03/16/2004US6707654 Protection device that shuts off in case of reversed connection
03/10/2004CN1141771C Battery pack protecting circuit and battery pack contg same
03/03/2004CN1140727C Air conditioner
03/02/2004US6700221 Electronic unit and method for detecting a polarity inversion of the onboard power supply voltage in motor vehicles
02/2004
02/18/2004CN2604018Y Connector plugging status testing circuit
02/12/2004DE20314487U1 Electronic teaching and experimenting system has pole protection and prevention of over voltage and excess current
02/04/2004CN1137605C Circuit arrangement
02/03/2004US6687102 Battery-operated power supply unit
01/2004
01/06/2004US6674621 IC PMOS Schottky reverse bias protection structure
01/01/2004US20040000909 Device for distributing electrical energy and method for monitoring the distribution of energy
12/2003
12/24/2003CN2595046Y Battery cable for vehicle
12/10/2003CN2591835Y Electric power source polar protective circuit with overvoltage protection
12/02/2003US6657839 Protective relay
12/02/2003US6657837 Circuit breaker incorporating fault lockout protection
12/02/2003US6657317 Electronic device with erroneous operation button state judging
11/2003
11/27/2003US20030218844 Protection circuit protecting against voltage irregularities
11/27/2003US20030218843 Power supply protection circuit
11/25/2003US6653751 Fault tolerant AC transfer switch
11/18/2003US6650520 Power supply reverse bias protection circuit for protecting both analog and digital devices coupled thereto
10/2003
10/29/2003EP1357658A1 Protection circuit against voltage transients and polarity reversal
10/29/2003CN2583854Y Protective circuit of intelligent electronic device
10/28/2003US6639444 Protection circuit
10/16/2003US20030193764 Short circuit protection for a power isolation device and associated diode
10/15/2003CN1449082A Monitoring device, electrical machine tool, current supply device, and associated method of operation
10/02/2003US20030184931 Pre-emptive circuit breaker with arc fault and fault lockout short circuit protection
10/02/2003US20030184308 Monitoring device, electrical machine tool, current supply device, and associated method of operation
10/01/2003EP1349253A2 Control circuit, in particular cooker timer, for cooking appliance
10/01/2003CN1445896A Power souce commutation possessing reverse connected polarity and protection circuit for surge current
09/2003
09/17/2003CN2574274Y Automatic testing and power polarity switching power connecting conductor device
09/04/2003WO2003073579A1 Apparatus for preventing erroneous input of power supply
09/04/2003US20030164694 Electronic circuit for an energy supply device, especially for a charging device for batteries
09/02/2003US6614217 Power supply negative phase detecting circuit
08/2003
08/28/2003WO2003071650A1 Method and device for reducing peak loads in motor vehicle supply systems
08/28/2003US20030161083 Method for protecting a dc generator against overvoltage
08/26/2003US6611410 Positive supply lead reverse polarity protection circuit
08/13/2003CN2566516Y Automatic polarity reversing safety connection device
08/12/2003US6606227 High voltage battery cutout circuit for a motor vehicle electrical system
07/2003
07/30/2003CN1433116A Leakage protector circuit for electric water heater
07/22/2003US6597552 Method for preventing making on electrical short circuits existing in branches and corresponding device
07/22/2003US6597138 Method and apparatus for controlling power supplied to a motor
07/17/2003US20030133239 Electrical safety lockout mechanism for power tools and other hazardous machinery
07/17/2003US20030133238 Utility control and autonomous disconnection of distributed generation from a power distribution system
07/03/2003WO2003055281A1 Electronic ballast with an overvoltage monitoring device
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