Patents
Patents for H02H 5 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection (5,568)
08/2004
08/05/2004DE10251763B3 Vorrichtung zur Ansteuerung mehrerer Elektromotoren Apparatus for controlling several electric motors
08/04/2004CN1161003C Bipolar power device having integrated thermal protection for driving electric loads
08/03/2004US6771152 Pivot point reset lockout mechanism for a ground for fault circuit interrupter
08/03/2004US6770985 In-vehicle electric load drive/controlling device incorporating power MOSFET thermal protection
07/2004
07/29/2004US20040144188 Internal vibrator for concrete compacting
07/27/2004US6768622 Method and apparatus for providing thermal shutdown and current limiting protection
07/27/2004US6768228 AC power protection unit
07/22/2004US20040141264 Reset lockout mechanism and independent trip mechanism for center latch circuit interrupting device
07/22/2004US20040140779 Device for actuating a plurality of electric motors
07/21/2004CN2627553Y Automatic controller for coal mine emulsion pump station
07/14/2004CN2626106Y Excess temperature protection circuit for brushless motor
07/13/2004US6762917 Method of monitoring ESC levels and protective devices utilizing the method
07/01/2004US20040124784 Lighting system and electric power supplier for the same
06/2004
06/30/2004EP1432553A2 Power tool safety mechanisms
06/30/2004CN1508957A Anti-overheating device for induction motor
06/24/2004WO2004054062A1 Device for protection from thunder
06/24/2004US20040120382 Structure and method of thermally protecting power devices for airbag deployment
06/17/2004US20040113806 Safety protection circuit
06/15/2004US6751080 Control circuit for semiconductor device with overheat protecting function
06/10/2004WO2004030171A9 Device safety system and method
06/10/2004US20040108923 Reset lockout for circuit interrupting device
06/09/2004DE20320319U1 Electrical/electronic transformer for converting supply voltage to load voltages has temperature-controlled device preventing overheating by reducing converter power if secondary side short-circuited
06/09/2004CN2620450Y Temp detection type pass load-speaker protector
06/09/2004CN2620410Y Multifunctional transformer protector
05/2004
05/27/2004US20040100749 System, apparatus, and method for controlling lamp operation when subject to thermal cycling
05/26/2004CN1499688A Motor protector
05/21/2004WO2004008500A3 Method of protecting semiconductor device and protection apparatus for semiconductor device using the same
05/19/2004EP1145264A4 Silicon equivalent ptc circuit
05/19/2004CN1497259A Direct earth detector and system connecting generating device using it
05/13/2004DE10249599A1 Sicherheitsschaltung für analoge Sensoren Safety circuit for analog sensors
05/12/2004CN2615831Y Surface mounting integrated circuit protector
05/06/2004WO2004038882A1 Protective circuit for analog sensors
04/2004
04/29/2004DE19625408B4 Schaltungsanordnung zur Erdungsüberwachung und zum Schutz vor gefährlichen Körperströmen, insbesondere für Geräte mit vorgeschriebenem Potentialausgleich in TT-Netzen, sowie eine Verwendung hierfür Circuit arrangement for ground monitoring and protection against dangerous body currents, especially for devices with prescribed equipotential bonding in TT systems, and use this
04/29/2004DE10141349B4 Nicht-intrusives Ereignislokalisierungssystem und Verfahren zur Ereignislokalisierung für ein Überhitzungsdetektionssystem Non-intrusive event location system and method for event localization for an overheating detection system
04/28/2004CN1492557A Circuit protector and method for over current and over heat protection thereof
04/28/2004CN1147998C Power supply control equipment and method
04/27/2004US6727821 Apparatus and method for predicting an overload trip for an electrical power transformer
04/22/2004WO2004034542A1 Secondary battery with protective circuit
04/22/2004WO2004034541A1 Over-voltage protection arrangement for a low voltage power supply
04/22/2004WO2002017456A8 Protective relay
04/21/2004CN1490912A Automatic protective leakage circuit breaker for fire hazard
04/21/2004CN1490911A Automatic protective leakage switch for fire hazard
04/20/2004US6724598 Solid state switch with temperature compensated current limit
04/15/2004US20040070904 Over-voltage protection arrangement for a low voltage power supply
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
04/14/2004EP1408594A2 DC ground fault detector and system-interconnected generation device using the DC ground fault detector
04/14/2004CN2612148Y Soft starting protector of dynamo
04/14/2004CN2611591Y Protector for preventing pumping unit from overturning
04/13/2004US6721159 Power feeding apparatus, transporter and transport system
04/08/2004WO2004030172A1 Method and apparatus for monitoring a technical installation, especially for carrying out diagnosis
04/08/2004WO2004030171A1 Device safety system and method
04/07/2004EP1406312A2 An optically coupled device
04/07/2004EP1405383A1 Method and device for protecting a conductor when an electric arc is produced
04/07/2004EP1247319B1 An improved electronic earth leakage current device
04/07/2004CN1487642A Overheat protection circuit
04/06/2004US6717782 Circuit breaker with independent trip and reset lockout
04/06/2004US6717519 Method and apparatus for detecting failure in solar cell module, and solar cell module
03/2004
03/31/2004CN2609319Y X-ray machine heat protector
03/31/2004CN2609256Y Automatic protector for submersible motor
03/30/2004US6714391 Ultracapacitor energy storage cell pack and methods of assembling and cooling the same
03/30/2004CA2189342C High-safety control device for electric heating appliances
03/25/2004WO2004025798A1 A self contained monitoring circuit and an electrical appliance incorporating such circuit
03/18/2004US20040052025 Electronic component production method and burn-in apparatus
03/16/2004US6707652 Electrical switching apparatus including glowing contact protection
03/10/2004EP1105901A4 Circuit interrupting system with independent trip and reset lockout
03/04/2004US20040042142 Overheat protection circuit
02/2004
02/25/2004CN1477747A Apparatus for monitoring neutral wire and earth wire, and electric switch device containing the same
02/25/2004CN1139864C Battery for portable computer
02/24/2004US6697244 Fault-current protection device with an overload protection device
02/18/2004CN1139166C Method and device for monitoring insulation and fault current in electric AC network
02/17/2004US6693779 IDCI with reset lockout and independent trip
02/12/2004US20040028167 Electromagnetic protector application specific integrated circuit (ASIC)
02/11/2004EP1387917A1 Internal vibrator for concrete compacting
02/05/2004US20040024545 Device for monitoring a neutral and earth break and electrical switchgear apparatus comprising such a device
02/05/2004DE10234389A1 Leitungsanordnung für Bordnetze von Fahrzeugen Line arrangement for electrical systems of vehicles
02/04/2004CN1472877A Inverter circuit device with temperature testing circuit
01/2004
01/28/2004EP1385177A1 Circuit arrangement for electrical network on board a vehicle
01/22/2004WO2004008500A2 Method of protecting semiconductor device and protection apparatus for semiconductor device using the same
01/21/2004EP1383218A1 Device for monitoring break of neutral and earth, and apparatus for switching off comprising such a device
01/15/2004US20040008460 Electrical switching apparatus including glowing contact protection
01/15/2004US20040008457 Inverter circuit device with temperature detection circuit
01/14/2004EP0976189B1 Method for determining the location of a partial discharge
01/14/2004CN2599590Y Intelligent controller for preventing illegal using electricity
01/07/2004CN1134092C Power supply line and equipment overheat detecting protector
01/06/2004US6674625 Lightning protection systems
01/06/2004US6674623 Microcomputer equipped with built-in temperature sensor
12/2003
12/31/2003WO2004001925A1 Multiple load protection and control device
12/31/2003CN1464609A Cold-water waterless automatic overload protecting method and apparatus for generator stator
12/31/2003CN1464608A Overtemperature protective circuit breaker
12/31/2003CN1463848A Ink-jet printer ink-ejecting unit open circuit and short circuit testing process and apparatus
12/30/2003US6671152 Power MOS transistor with overtemperature protection circuit
12/30/2003US6668781 Electric starter device for an internal combustion engine
12/25/2003US20030234245 Multiple load protection and control device
12/23/2003US6667868 Thermal shutdown control for multi-channel integrated circuit boards
12/23/2003US6667461 Multiple load protection and control device
12/18/2003WO2003105304A1 Protection of electric energy consumers against earthquakes
12/17/2003CN2593436Y Overtemperature accident treatment apparatus for multi-region heating equipment
12/10/2003CN2591828Y Dry type transformer thermal protector
12/10/2003CN2591827Y Water flow turning-on &-off motion monitoring & protector
12/04/2003US20030223162 Circuit configuration for identifying a fault state
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