| Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232) |
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| 11/20/2013 | CN203301146U Intelligent video monitoring lightning arrester |
| 11/20/2013 | CN203301145U Lightning prevention circuit |
| 11/20/2013 | CN203301144U Vehicle-borne power surge protection circuit |
| 11/20/2013 | CN203301143U Electrical equipment protection system for co-location building of communication base station under lightning strike |
| 11/20/2013 | CN203301142U Anti-lightning protection circuit of direct-current system |
| 11/20/2013 | CN203301141U Packet grounding system |
| 11/20/2013 | CN203301140U Transformer direct-current magnetic bias suppression device |
| 11/20/2013 | CN203301139U Variable-impedance arrester anti-aging protection device |
| 11/20/2013 | CN203301130U Voltage bypass start stabilizing apparatus |
| 11/20/2013 | CN203300648U Electrostatic discharge clamp employing vertical NPN transistor |
| 11/20/2013 | CN103403990A A current limitation system for limiting the effects of a fault in a DC grid and a method of operating a current limitation system |
| 11/20/2013 | CN103401230A Power grid grounding device |
| 11/20/2013 | CN103401229A Voltage triggering static discharge clamping circuit with feedback strengthening effect |
| 11/20/2013 | CN103401228A Method for restraining asymmetric short-circuit current |
| 11/20/2013 | CN103400724A Power saving and silencing AC contactor with thunder-proof function |
| 11/20/2013 | CN102290688B Energy-saving socket favorable for realizing zero power consumption in standby or off state of external load |
| 11/20/2013 | CN102081131B Grounding point finding method for low-current grounding system of urban power grid |
| 11/19/2013 | US8587915 Arrangement for energy conditioning |
| 11/19/2013 | US8587914 Fault circuit interrupter device |
| 11/19/2013 | US8587913 Active current surge limiters with voltage detector and relay |
| 11/19/2013 | US8587909 Transient current suppression device and method |
| 11/19/2013 | US8587908 Semiconductor device |
| 11/19/2013 | US8587907 Electric battery with multiple electrical energy generating elements |
| 11/19/2013 | CA2676497C Controlling transient response of a power supply |
| 11/14/2013 | WO2013170270A1 Discrete silicon avalanche diode array |
| 11/14/2013 | WO2013167470A1 Device for protecting at least one electrical apparatus against overvoltage generated by a lightning strike |
| 11/14/2013 | WO2013167199A1 Method and apparatus for clearing a fuse in a single output multi load configuration |
| 11/14/2013 | WO2013166977A1 Lightning protection device |
| 11/14/2013 | US20130303094 Radio transmission modules having intrinsic safety |
| 11/14/2013 | US20130301318 Drive unit for switching element and method thereof |
| 11/14/2013 | US20130301179 Discrete Silicon Avalanche Diode Array |
| 11/14/2013 | US20130301174 Series Type Surge Suppressor and Clamping Circuit |
| 11/14/2013 | US20130301173 System and methods for protection of batter modules |
| 11/14/2013 | US20130301172 Electrostatic discharge protection apparatus and associated method |
| 11/14/2013 | US20130301171 User-actuated button esd protection circuit with spark gap |
| 11/14/2013 | US20130301170 Systems, methods, and apparatus for voltage clamp circuits |
| 11/14/2013 | US20130300215 Inrush current suppression apparatus |
| 11/14/2013 | DE102013104916A1 System und Verfahren zum Überspannungsschutz System and method for overvoltage protection |
| 11/14/2013 | DE102012218261B3 Induktiver Fehlerstrombegrenzer mit geteilter Primärspulenanordnung Inductive Fault split primary coil assembly |
| 11/14/2013 | DE102012207654A1 Motor vehicle-generator device has generator stabilizer, generator, rectifier and protection arrangement for noise suppression, where protection arrangement is formed such that suppresses short, low-power noise pulse |
| 11/14/2013 | DE102012103735A1 Erdschluss-System Ground fault system |
| 11/14/2013 | DE102012009450A1 Circuit for e.g. preventing over-voltage in battery, has voltage monitoring unit whose input is connected to positive terminal of energy accumulator, and whose output is connected to control terminal of controllable power switch |
| 11/14/2013 | CA2814660A1 System and method for overvoltage protection |
| 11/13/2013 | EP2661773A2 Semiconductor device arrangement with a first semiconductor device and with a plurality of second semi conductor devices |
| 11/13/2013 | CN203289317U Gateway power circuit used for electric power steering system |
| 11/13/2013 | CN203289150U Anti-thunder charger |
| 11/13/2013 | CN203289099U Overvoltage protector with fault disconnectors |
| 11/13/2013 | CN203289098U Lightning-protection socket of power supply |
| 11/13/2013 | CN203289097U Integrated device for transformer neural point |
| 11/13/2013 | CN203289096U Overvoltage protective circuit for composite piezoresistor |
| 11/13/2013 | CN203289095U Lightning protection circuit for switch power supply |
| 11/13/2013 | CN203289094U Novel replaceable single-phase power supply lightning protection device |
| 11/13/2013 | CN203289093U Rectification type resistance-capacitance absorbing device |
| 11/13/2013 | CN203289092U Vehicle analog output circuit |
| 11/13/2013 | CN203289091U Overcurrent protection circuit |
| 11/13/2013 | CN203289090U Backup protection device for novel surge protector |
| 11/13/2013 | CN203289088U Overvoltage protection device used for DC side of flexible DC power transmission system |
| 11/13/2013 | CN203289067U Novel surge protector |
| 11/13/2013 | CN203288971U Distribution protection cabinet |
| 11/13/2013 | CN103390889A Lightning protection device |
| 11/13/2013 | CN103388796A Wind and light complementation control system for street lamp and working method of wind and light complementation control system |
| 11/13/2013 | CN102208802B Power switching tube overcurrent detection and overcurrent protection circuit |
| 11/13/2013 | CN101964520B Gas-blast arc extinction lightning protection gap for power equipment |
| 11/12/2013 | US8582273 Surge absorbing circuit and electric device using the same |
| 11/12/2013 | US8582267 System and method to limit in-rush current |
| 11/12/2013 | US8582263 Digitally controlled AC protection and attenuation circuit |
| 11/12/2013 | US8582262 Active current surge limiters with disturbance sensor and multistage current limiting |
| 11/12/2013 | US8582261 Apparatus and method for electronic circuit protection |
| 11/12/2013 | US8582260 Integrated circuit |
| 11/12/2013 | US8582259 Semiconductor device and switching regulator using the device |
| 11/12/2013 | US8582258 Electrostatic discharge protection circuit for integrated circuits |
| 11/12/2013 | US8582257 Ultra-low sensitivity ground fault circuit interrupter |
| 11/12/2013 | US8581596 Current leakage detector of construction machine |
| 11/07/2013 | US20130293999 Protection circuit for electronic apparatus |
| 11/07/2013 | US20130293997 Rigid flex electromagnetic pulse protection device |
| 11/07/2013 | US20130293993 Output circuits with electrostatic discharge protection |
| 11/07/2013 | US20130293992 ESD Protection System Optimized at Board Level |
| 11/07/2013 | US20130293991 Current leakage in rc esd clamps |
| 11/07/2013 | US20130293986 Current Limit Circuit Architecture For Low Drop-Out Voltage Regulators |
| 11/06/2013 | CN203278226U Capacitance regulating type automatic tuning arc extinguishing device |
| 11/06/2013 | CN203278225U A capacitor-adjusting automatic arc-extinguishing compensation apparatus |
| 11/06/2013 | CN203278224U Charger with surge-resistant function and reversal connection protection function |
| 11/06/2013 | CN203278223U Start-up anti-surge port circuit applied to wireless device |
| 11/06/2013 | CN203278222U Charger with surge-resistant function and reversal connection alarm function |
| 11/06/2013 | CN203278221U Power supply lightning arrester with neutral-ground voltage detection |
| 11/06/2013 | CN203278220U 无线定位终端雷击保护电路 Wireless positioning terminal lightning protection circuits |
| 11/06/2013 | CN203278219U Remote measurement centralized meter reading collector communication lightning protection device |
| 11/06/2013 | CN203278218U Anti-lightning protection circuit of switch power supply |
| 11/06/2013 | CN203278217U Composite material overvoltage protector for electrification railway |
| 11/06/2013 | CN203278216U Three-in-one lightning arrester used in video monitoring system |
| 11/06/2013 | CN203278215U Secondary overvoltage protector for current transformer |
| 11/06/2013 | CN203278214U Novel multifunctional electric power electronic current-limiting system |
| 11/06/2013 | CN203278213U High reliability anti-impact circuit and power supply system using same |
| 11/06/2013 | CN203278212U Card-type terminal electrostatic protection circuit |
| 11/06/2013 | CN203278211U Transformer excitation inrush current eliminating device |
| 11/06/2013 | CN203278210U Busbar residual voltage maintaining device |
| 11/06/2013 | CN203277382U Electrostatic protection circuit and battery protection circuit thereof |
| 11/06/2013 | CN203276512U Water accumulation prompter |
| 11/06/2013 | CN203276504U Water-saving annunciator |
| 11/06/2013 | CN203276440U Early warning device capable of protecting lock hole |