Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232) |
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10/17/2012 | CN102738144A Electrostatic discharge protection device and electrostatic discharge protection circuit thereof |
10/17/2012 | CN102735359A Fault current limiter and metal oxide varistor (MOV) wireless temperature measuring device applied to fault current limiter |
10/17/2012 | CN101916990B Optimized check method of short-circuit current limiting measure |
10/17/2012 | CN101895108B Surge protection system |
10/17/2012 | CN101800422B Protective device and realization method thereof |
10/17/2012 | CN101141063B Esd protection circuit using self-biased current trigger technique and pumping source mechanism |
10/16/2012 | US8289670 Adaptive power management system for aircraft galleys |
10/16/2012 | US8289669 Semiconductor device including over voltage protection circuit having gate discharge circuit operated based on temperature and voltage as to output transistor |
10/16/2012 | US8289667 Current limiting surge protection device |
10/16/2012 | US8289666 Memory module for preventing electrostatic discharge (ESD) and system including the same |
10/16/2012 | US8289665 Systems and methods for grounding power line sections to clear faults |
10/16/2012 | US8289183 System and method for solar panel array analysis |
10/16/2012 | CA2505198C Power bus and structure for a barrier movement operator |
10/11/2012 | WO2012081840A3 Smart bonding method for equipment including a remote control panel and a control panel having a metal case for underground wells |
10/11/2012 | US20120257317 RC-triggered Semiconductor Controlled Rectifier for ESD Protection of Signal Pads |
10/11/2012 | US20120257313 Superconducting Fault Current Limiter |
10/11/2012 | US20120257312 System and method for programming and controlling over current trip point limits in voltage regulators |
10/11/2012 | US20120257310 Circuit protection device and protection method |
10/11/2012 | US20120257308 Surge Protection Circuit |
10/11/2012 | US20120256614 Technique for limiting fault current transmission |
10/11/2012 | DE102011016551A1 Driver assistance device for motor vehicle e.g. passenger car, has voltage limiting unit that is connected to internal protection circuit for limiting amplitude of voltage signals to measurable value of control unit |
10/10/2012 | EP2507885A1 Component for limiting currents in electric circuits |
10/10/2012 | EP2507800A1 Granular non- polymeric varistor material, substrate device comprising it and method for forming it |
10/10/2012 | CN202488132U Thyristor switched capacitive arc suppression coil structure |
10/10/2012 | CN202488131U Grounding conversion device for neutral points of power distribution network |
10/10/2012 | CN202488130U Discharge gap type multi-layer surge protector |
10/10/2012 | CN202488129U Building high voltage isolation device for cable television |
10/10/2012 | CN202488128U Overvoltage protective device for alternating current three-phase four-line input terminal |
10/10/2012 | CN202488127U Novel single-channel control lightning protection device |
10/10/2012 | CN202488126U Novel single-circuit video surge protection device |
10/10/2012 | CN202488125U Novel single-power supply lightning protection device |
10/10/2012 | CN202488124U Safe and reliable current transformer protection device |
10/10/2012 | CN202488123U Limited current circuit of generator set charging module |
10/10/2012 | CN202488122U Current grounding device for motor shaft |
10/10/2012 | CN202488121U Current-limiting device for substation 10kV loop |
10/10/2012 | CN202488120U Transformer low-voltage short circuit current limiting device |
10/10/2012 | CN202488119U Photovoltaic short circuit diode system provided with secondary temperature-limiting protection |
10/10/2012 | CN102723763A Super-capacitor energy storage type quick elevator charge protection controller |
10/10/2012 | CN102723708A Graphite type arrester |
10/10/2012 | CN102723707A Lightning protection device with overhead insulated line |
10/10/2012 | CN102723706A PoE port overvoltage comprehensive protection circuit and method for realizing same |
10/10/2012 | CN102723705A Full-port protection circuit used for physical layer interface chip of USB |
10/10/2012 | CN102723704A Magnetic switch type short-circuit current fault detection method and device for same |
10/10/2012 | CN102723703A Surge current suppression circuit and lighting fixture |
10/10/2012 | CN102723702A Dual-feedback power supply clamp used for on-chip electrostatic discharge protection |
10/10/2012 | CN102723698A Neutral point asymmetric grounding device of transformer |
10/10/2012 | CN101304140B Power supply inserted terminal with wave-projecting protection function |
10/09/2012 | US8284534 Overcurrent protection circuit, integrated circuit, apparatus and computer program product |
10/09/2012 | US8284532 Over-voltage protection system and electronic device using the same |
10/09/2012 | US8284530 Electrostatic discharge (ESD) protection circuit and related apparatus and method |
10/09/2012 | US8284529 Reclosing control system and method using superconducting fault current limiter |
10/04/2012 | WO2012130328A1 A switch mode current limiter |
10/04/2012 | US20120250205 Surge protective device with contoller |
10/04/2012 | US20120250200 Over-temperature protected triac and protection method |
10/04/2012 | US20120250199 Power over ethernet electrostatic discharge protection circuit |
10/04/2012 | US20120250198 Esd protection circuit for a semiconductor integrated circuit |
10/04/2012 | US20120250197 Low leakage esd structure for non-contact bio-signal sensors |
10/04/2012 | US20120250196 Esd protection device and manufacturing method therefor |
10/04/2012 | US20120250195 Electrostatic discharge power clamp with a jfet based rc trigger circuit |
10/04/2012 | US20120250194 High voltage tolerant SCR clamp with avalanche diod triggering circuit |
10/04/2012 | US20120250192 Short circuit protection for sensor |
10/04/2012 | US20120249070 Devices and methods for the safe driving, charging and energy recovery operation of an electric vehicle |
10/04/2012 | DE102011001734A1 Überspannungsschutzeinrichtung Overvoltage protection device |
10/03/2012 | CN202475455U Ethernet interface protection circuit |
10/03/2012 | CN202474971U Current limiting charging circuit of lithium battery management system |
10/03/2012 | CN202474871U Low-voltage dynamic reactive compensation device |
10/03/2012 | CN202474854U Isolated single-phase power supply lightning protector |
10/03/2012 | CN202474853U Combined neutral point overvoltage protection device |
10/03/2012 | CN202474852U Integrated grounding distribution mechanism |
10/03/2012 | CN202474851U Lightning protection system for video servers |
10/03/2012 | CN202474850U Surge protective device |
10/03/2012 | CN202474849U Swinging type removal-alarming surge-absorption protector |
10/03/2012 | CN202474848U Intelligent lightning protection guard circuit |
10/03/2012 | CN202474847U Full-model overvoltage protection module for AC circuit |
10/03/2012 | CN202474846U Regulating device of charger |
10/03/2012 | CN202474845U Short circuit protection circuit and LED power supply circuit used for active PFC circuit output terminal |
10/03/2012 | CN202474844U System for eliminating large starting current for automotive air conditioner |
10/03/2012 | CN202474818U Apparatus for single phase transformer to study excitation inrush current |
10/03/2012 | CN202474806U Lightning protection system |
10/03/2012 | CN202474805U Safe energy-saving power distribution cabinet |
10/03/2012 | CN202474591U Three-phase power lightning-protection distribution box |
10/03/2012 | CN102714408A Electrical circuit with surge protection monitoring |
10/03/2012 | CN102714206A ESD protection device and method |
10/03/2012 | CN102711310A Light-emitting diode (LED) drive circuit and lamp |
10/03/2012 | CN102711309A LED (Light Emitting Diode) driving circuit and lamp |
10/03/2012 | CN102711308A LED (Light Emitting Diode) drive circuit and lamp |
10/03/2012 | CN102711307A Dimmable light-emitting diode (LED) drive circuit and lamp |
10/03/2012 | CN102710149A Anti-surging switching power supply and corresponding light emitting diode (LED) driving circuit |
10/03/2012 | CN102710108A Power converter and method of operation with current crowbar |
10/03/2012 | CN102709942A Wind power station LVRT (low voltage ride through) device and control method thereof |
10/03/2012 | CN102709902A Surge current protection device |
10/03/2012 | CN102709901A Overvoltage protection method and device of current transformer |
10/03/2012 | CN102709900A Input stage protection circuit |
10/03/2012 | CN102709899A Intelligent arc extinction and resonance extinction overvoltage protection integral optimization device |
10/03/2012 | CN102709898A Fault-guiding safety anti-lightening element |
10/03/2012 | CN102709897A Network card protective device |
10/03/2012 | CN102709896A Clamping protection circuit, resonance circuit and converter |
10/03/2012 | CN102709895A Transformer DC (Direct Current) bias magnetic suppression device |
10/03/2012 | CN102709887A Control method for restraining secondary arc current of controllable series compensation circuit |
10/03/2012 | CN102709881A Device utilizing adjustable resistance method to curb DC of neutral point of transformer |