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