Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232) |
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01/13/2010 | CN201383677Y Solid decoupling device |
01/13/2010 | CN201383676Y Protective circuit for driving circuit board |
01/13/2010 | CN201383671Y Neutral point grounding protective device of transformer |
01/13/2010 | CN101626158A Automatic tuning control method of post-set arc suppression coils |
01/13/2010 | CN101626157A Overvoltage protection device for an electrical circuit |
01/13/2010 | CN101626156A Overvoltage protection element |
01/13/2010 | CN101626155A Outdoor alternating current power supply lightening protector |
01/13/2010 | CN101626154A ESD full-chip protection circuit of integrated circuit |
01/13/2010 | CN100581021C Electrostatic protection circuit apparatus |
01/13/2010 | CN100581002C Connector and high-voltage sudden wave protection method |
01/12/2010 | US7646577 Power plugging device with a function of releasing charges from electric surges |
01/12/2010 | US7646576 Apparatus and method for high-voltage transient blocking using low voltage elements |
01/12/2010 | US7646575 Manually-controlled arc flash energy reduction system and method for circuit breaker trip units |
01/12/2010 | US7646574 Voltage regulator |
01/12/2010 | US7646573 Method for improved triggering and oscillation suppression of ESD clamping devices |
01/12/2010 | US7646572 Aircraft system and method of arc fault protection for an aircraft system |
01/12/2010 | US7646571 Circuit for effective quench heating in superconducting magnets |
01/12/2010 | CA2287695C Intrinsically safe data aquisition system and apparatus |
01/07/2010 | WO2009131997A3 Low-voltage cmos space-efficient 15 kv esd protection for common-mode high-voltage receivers |
01/07/2010 | WO2009126669A3 Quarter wave stub surge suppressor with coupled pins |
01/07/2010 | US20100002345 Radio frequency switch electrostatic discharge protection circuit |
01/07/2010 | US20100002344 High voltage tolerance circuit |
01/07/2010 | DE102008031029A1 Elektronisches Bauelement mit einer Schutzschaltung für eine lichtemittierende Vorrichtung An electronic device having a protection circuit for a light emitting device |
01/07/2010 | DE102008029670A1 Überspannungsschutzelement An overvoltage protection element |
01/07/2010 | DE102008022744B4 Schaltungsanordnung und System zum Einsatz in einem Kraftfahrzeug A circuit arrangement and system for use in a motor vehicle |
01/06/2010 | EP2141780A1 Phase control switch and switching pole control method in phase control switch |
01/06/2010 | EP2140491A1 Stacked esd protection circuit having reduced trigger voltage |
01/06/2010 | EP2139645A2 Power screwdriver |
01/06/2010 | CN201378805Y Harmonic calibrator |
01/06/2010 | CN201378800Y Capacitive power supply and electronic equipment with same |
01/06/2010 | CN201378733Y Overvoltage limiting device of electric line |
01/06/2010 | CN201378732Y Inrush current protecting circuit and motor employing same |
01/06/2010 | CN201378731Y Overvoltage suppressing and self-recovery circuit |
01/06/2010 | CN201378728Y Lightning proof-grounding integrated protection system |
01/06/2010 | CN101621199A Automatic tuning method of preset arc suppression coil |
01/06/2010 | CN101621198A Effective electrostatic discharge protection circuit |
01/05/2010 | US7643264 Power supply controller and method for controlling power supply circuit |
01/05/2010 | US7643261 Semiconductor device |
01/05/2010 | US7643259 Substrate, with ESD magnetically induced wires, bound to passives/product ICS |
01/05/2010 | US7643258 Methods and apparatus for electrostatic discharge protection in a semiconductor circuit |
01/05/2010 | US7640621 Thermal protection system for electrical appliance |
12/31/2009 | US20090323244 Controlled Convection Thermal Disconnector |
12/31/2009 | US20090323240 Device for suppressing high frequency current or/and voltage components |
12/31/2009 | US20090323239 Method and apparatus for balancing current through an interrupt device |
12/31/2009 | US20090323238 Electronic device including a protection circuit for a light-emitting device |
12/31/2009 | US20090323237 Electrostatic Discharge Circuit |
12/31/2009 | US20090323236 Semiconductor device |
12/31/2009 | US20090323235 High voltage compliant apparatus for semiconductor fabrication process charging protection |
12/31/2009 | US20090323234 Method and circuit arrangement for protection against electrostatic discharges |
12/31/2009 | US20090323233 Apparatus and method of determining insulation resistance in an ungrounded mobile vehicle electrical bus system |
12/31/2009 | DE202009013206U1 Überspannungsschutzgerät mit Doppelwarnung und Mehrfachschutz Surge protection device with double warning and multiple protection |
12/31/2009 | DE102005002359B4 Schaltung zur Strombegrenzung und Verfahren zum Betrieb der Schaltung Current-limiting circuit and method of operation of the circuit |
12/31/2009 | DE102004032475B4 U-Boot-Überspannungsschutzeinrichtung Submarine surge protector |
12/30/2009 | WO2009156654A2 Device and method for coupling two portions of a direct current network, particularly in an aircraft |
12/30/2009 | EP2139088A1 Core-saturated superconductive fault current limiter and control method of the fault current limiter |
12/30/2009 | EP2139053A1 Current limiting device |
12/30/2009 | EP2138016A1 Illumination device having inrush current limiting circuit |
12/30/2009 | CN201374559Y Signal surge protecting box |
12/30/2009 | CN201374558Y Novel surge protective device |
12/30/2009 | CN201374557Y Power surge protecting box |
12/30/2009 | CN201374556Y Protective circuit for transmitting disk of electric tool rest |
12/30/2009 | CN201372895Y Safety chain control system |
12/30/2009 | CN101615788A Radio frequency lightning protection device and method |
12/30/2009 | CN100576684C Surge suppressor |
12/30/2009 | CN100576675C Protection device of energy-storage capacitor unit |
12/29/2009 | US7639468 Circuit for load current measurement, limitation and switching |
12/29/2009 | US7639467 Over-voltage protection circuit |
12/29/2009 | US7639465 Inrush current restraining circuit and audio device using the same |
12/29/2009 | US7639464 High holding voltage dual direction ESD clamp |
12/29/2009 | US7639462 Method and system for reducing transient event effects within an electrostatic discharge power clamp |
12/24/2009 | US20090316319 Overvoltage protection element |
12/24/2009 | US20090316316 Electrical circuit |
12/24/2009 | US20090316315 Led chip package structure with an embedded esd function and method for manufacturing the same |
12/24/2009 | US20090316314 Design structure for an on-chip high frequency electro-static discharge device |
12/24/2009 | US20090316313 Design structure for an on-chip high frequency electro-static discharge device |
12/23/2009 | WO2009155046A1 Power interrupt device |
12/23/2009 | WO2009153583A1 Apparatus for automatic disconnection of current limiter |
12/23/2009 | WO2009152664A1 Annular electrodeless fluorescent lamp assembly with lamp head |
12/23/2009 | WO2009116849A3 Electrical interface protecting apparatus |
12/23/2009 | EP2136382A1 Apparatus for automatic disconnection of current limiter |
12/23/2009 | EP2135639A1 Electrical surge protection element |
12/23/2009 | CN201369565Y Static discharge protecting circuit |
12/23/2009 | CN201369564Y Over-voltage protective device |
12/23/2009 | CN201369563Y Intelligent protecting module of surge protector |
12/23/2009 | CN201369562Y Surge protective device for over voltage protection of wind and power electric system |
12/23/2009 | CN201369561Y High-power thyristor protection device |
12/23/2009 | CN201369560Y Relay protection device used in electrical power supply and distribution system of spacecraft |
12/23/2009 | CN201369556Y Battery cell protection circuit of lithium battery |
12/23/2009 | CN101609990A Intelligent three-phase electricity-saving protection controller |
12/23/2009 | CN101609983A Restrain device and control method for excitation inrush current of transformer |
12/23/2009 | CN101609982A Parallel resonance short-circuit fault current limiter with series compensating function |
12/23/2009 | CN101609943A Three-phase intelligent energy-saving protection control socket |
12/23/2009 | CN101609942A Intelligent energy-saving protection control socket |
12/23/2009 | CN101609941A Single phase intelligent electricity-saving protection control socket |
12/23/2009 | CN100574039C Apparatus for preventing thunderbolt, electronic device and method for preparing plane inductive coil |
12/23/2009 | CN100574038C Electric potential compensation process for reducing neutral point direct current of high-voltage grid transformer |
12/23/2009 | CN100574037C Half wave arc extinguishing type superconductive fault current limit possessing integral switch module |
12/23/2009 | CN100574036C Switching arrangement for interconnecting electrolytic capacitors |
12/22/2009 | US7636227 Noise immune over current protection with inherent current limiting for switching power converter |
12/22/2009 | US7636226 Current protection circuit using multiple sequenced bipolar transistors |