| Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232) |
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| 06/01/2011 | CN201854024U Protecting device of feedback unit |
| 06/01/2011 | CN201854023U Lightning protection system of wind generating set |
| 06/01/2011 | CN201854022U Signal control surge protection circuit |
| 06/01/2011 | CN201854021U Soft starting circuit used for USB wireless modem |
| 06/01/2011 | CN102082430A Surge suppression circuit |
| 06/01/2011 | CN102082429A IGBT (Insulated Gate Bipolar Translator) shut-off surge voltage clamp and suppression circuit |
| 06/01/2011 | CN102082428A Surge protection device with signal safely-acquiring function |
| 06/01/2011 | CN102082427A Surge protector adopting pressure-sensitive chip and graphite sheet in serial connection |
| 06/01/2011 | CN102082426A Current-limit circuit with output short circuit protection |
| 06/01/2011 | CN102082425A Automatic control residual current device (RCD) for low voltage network |
| 06/01/2011 | CN102082424A I/O (input/output) unit and integrated circuit chip |
| 06/01/2011 | CN102082365A Plug-push structure of surge protector |
| 06/01/2011 | CN102082183A Device and system for electrostatic discharge protection |
| 06/01/2011 | CN102082149A Ballast structure for input and output ESD (Electro-Static Discharge) protection of full-metal silicide |
| 06/01/2011 | CN102081131A Grounding point finding method for low-current grounding system of urban power grid |
| 05/31/2011 | US7952845 V-band radio frequency electrostatic discharge protection circuit |
| 05/31/2011 | US7952844 Electrostatic discharge immunizing circuit without area penalty |
| 05/31/2011 | US7952843 Arc detection circuit |
| 05/31/2011 | US7952841 Device for detecting malfunctions by manipulation of an internal voltage supply |
| 05/31/2011 | US7952385 Temperature variance nullification in an inrush current suppression circuit |
| 05/31/2011 | US7951681 Substrate-triggered bipolar junction transistor and ESD protection circuit |
| 05/26/2011 | US20110125310 System and method for limiting energy in an industrial control system |
| 05/26/2011 | US20110122537 Electronic apparatus |
| 05/26/2011 | DE102009041937A1 Amplifier for electrostatic discharge protection circuit, has current limiting device reducing output current at output to current value based on determined condition of input signal relative to determined condition of output |
| 05/25/2011 | EP2325967A2 Power supply with arc flash protection mechanism and data-processing system employing same |
| 05/25/2011 | CN201846566U Electromagnetic shielding device with power supply surge protective device and signal wire and control circuit protective device |
| 05/25/2011 | CN201846074U Lightning-proof control device for photovoltaic power generating system |
| 05/25/2011 | CN201846073U Overvoltage protector |
| 05/25/2011 | CN201846072U Special lightning protection device for seismic instrument |
| 05/25/2011 | CN201846071U Surge protection device of high-definition network camera |
| 05/25/2011 | CN201846070U M-BUS intrinsic safety barrier |
| 05/25/2011 | CN201845521U Vehicle induction display device |
| 05/25/2011 | CN102076155A Power limiting method and apparatus |
| 05/25/2011 | CN102074962A Combination switch type step controllable shunt reactor |
| 05/25/2011 | CN102074961A Leveled controllable parallel reactor device configured by series public reactor |
| 05/25/2011 | CN102074960A Thyristor valve control type controllable shunt reactor device adopting valve series type configuration |
| 05/25/2011 | CN102074959A Thyristor valve-controlled controlled shunt reactor device |
| 05/25/2011 | CN102074958A Thyristor valve controlled type controllable paralleling reactor device configured with parallel valve branches |
| 05/25/2011 | CN102074950A Distribution network ground fault arc extinction and protection method |
| 05/25/2011 | CN102074949A Integrated protecting circuit for resisting peak surge, operation, resonance and lightning strike over-voltage |
| 05/25/2011 | CN102074948A System for limiting overvoltage in ultrahigh-voltage alternating current power transmission system |
| 05/25/2011 | CN102074947A Intelligent surge protection device (SPD) |
| 05/25/2011 | CN102074946A External device for preventing PLC module from being burnt out due to high input voltage |
| 05/25/2011 | CN102074945A Surge protective device for communication cabinet |
| 05/25/2011 | CN102074944A Method and device for preventing damage to 220kV transformer subjected to short circuit impact |
| 05/25/2011 | CN102074943A Current limiting protection device and power supply |
| 05/25/2011 | CN102074942A Overcurrent protection circuit |
| 05/25/2011 | CN102074428A Switch module |
| 05/25/2011 | CN101515750B Current level change protection and control device for current supply |
| 05/25/2011 | CN101505057B Voltage equalizing protection method for series connection power device, power device and lightning arrester valve switch |
| 05/25/2011 | CN101252129B Semiconductor device |
| 05/25/2011 | CN101199092B Switching circuit and method for controlling circuit breaker |
| 05/25/2011 | CN101178960B Electrical assembly comprising PTC-resistor elements |
| 05/24/2011 | US7948729 Method and circuit for over-current protection |
| 05/24/2011 | US7948728 Semiconductor device and method for inspecting the same |
| 05/24/2011 | US7948727 Over-voltage protection circuit |
| 05/24/2011 | US7948726 Electrostatic discharge (ESD) protection circuit and method |
| 05/24/2011 | US7948725 Composite integrated semiconductor device |
| 05/24/2011 | US7948723 Method and apparatus for measuring DC current in an AC generator |
| 05/24/2011 | US7948722 Differential protection device |
| 05/24/2011 | US7948720 Voltage regulator with transient recovery circuit |
| 05/19/2011 | WO2011058506A1 Overvoltage protection for defibrillator |
| 05/19/2011 | WO2011058318A1 Electrical circuit with surge protection monitoring |
| 05/19/2011 | US20110116197 Current sensor for earth leakage module |
| 05/19/2011 | DE102009053653A1 Switching arrangement for protecting hydraulic control device in vehicle from electrical overvoltages at on-board voltage network, has switch interrupting current path through element when amount of voltage falls below pre-determined value |
| 05/18/2011 | CN201839323U Mobile terminal with surge protection circuit |
| 05/18/2011 | CN201839061U Emergency power supply of fluorescent lamp |
| 05/18/2011 | CN201839003U Following-setting TSC resonance prevention type complete equipment for arc extinction and grounding compensation |
| 05/18/2011 | CN201839002U Protective circuit of disc type direct-current electromagnetic brake |
| 05/18/2011 | CN201839001U Drop-type arrester |
| 05/18/2011 | CN201839000U Protection circuit for improving anti-lighting strike capability of power supply with miniwatt |
| 05/18/2011 | CN201838999U Circuit in electronic current limiter |
| 05/18/2011 | CN201838998U Protective circuit for high-pressure-side sensing head and analog channel interface of electronic type current transformer |
| 05/18/2011 | CN201838997U Power-on protection circuit |
| 05/18/2011 | CN201838447U Transformer module with multiple protection mechanisms |
| 05/18/2011 | CN201837666U Lightning-proof ammeter box |
| 05/18/2011 | CN1756113B Bus system protective device |
| 05/18/2011 | CN102065635A Communication apparatus and withstand voltage test method |
| 05/18/2011 | CN102064719A LED (Light Emitting Diode) backlight power source circuit, backlight power source and multimedia device |
| 05/18/2011 | CN102064584A Improved power interface of wireless fixed station module |
| 05/18/2011 | CN102064555A Chain type STATCOM (Static Synchronous Compensator) chain unit bypass structure with mechanical switch |
| 05/18/2011 | CN102064551A Low-voltage high-power passive filtering circuit |
| 05/18/2011 | CN102064550A Wave stabilizing and flow discharging device |
| 05/18/2011 | CN102064545A Vehicular protection device |
| 05/18/2011 | CN102064544A Electrostatic discharge clamp with controlled hysteresis including selectable turn on and turn off threshold voltages |
| 05/18/2011 | CN102064543A Fault protection device of high-energy power supply system and protection method thereof |
| 05/18/2011 | CN102064542A Impedance composite superconducting fault current limiter based on novel superconducting material |
| 05/18/2011 | CN102064541A Device and method for protection of chargeable element |
| 05/18/2011 | CN102064540A Electrostatic discharge (ESD) protection circuit for high definition multimedia interface (HDMI) |
| 05/18/2011 | CN102064521A Overvoltage, overcurrent, leakage and lightning protection multifunctional solar electric supply protection controller |
| 05/18/2011 | CN102064514A Back-plugging cable joint with overvoltage protector |
| 05/18/2011 | CN102064513A Direct-insertion type cable joint with overvoltage protector |
| 05/18/2011 | CN102064010A Multi-phase combined type decoupler |
| 05/18/2011 | CN102064001A ABS puncturing decoupler |
| 05/18/2011 | CN102064000A Decoupling device applying manganese-zinc high-permeability ferrite high-conductivity core |
| 05/18/2011 | CN102059681A Fuel gas nailing gun high-voltage discharge detection protection method, circuit and fuel gas nailing gun |
| 05/18/2011 | CN101571104B Safety chain control system |
| 05/18/2011 | CN101552466B An arc-suppression coil grounding device for medium voltage network |
| 05/18/2011 | CN101479906B Vehicle power supply apparatus and vehicle incorporating the same |
| 05/18/2011 | CN101388547B Electrostatic release method and device for electric automobile |