Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232) |
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01/07/2014 | US8624213 Optocoupler circuit for gate driver |
01/03/2014 | WO2013167089A3 High-voltage protection circuit, high-voltage protection method and power supply |
01/02/2014 | US20140005053 Current-rise limitation in high-voltage dc systems |
01/02/2014 | US20140002943 Dc grid and a method of limiting the effects of a fault in a dc grid |
01/02/2014 | US20140002934 Latch-up immune esd protection |
01/02/2014 | US20140002932 Switching Regulator with Negative Current Limit Protection |
01/02/2014 | US20140001600 Diode String |
01/02/2014 | US20140001368 Esd protection system and x-ray flat panel detector |
01/02/2014 | DE102012105630A1 Beleuchtungsvorrichtung, Beleuchtungsanordnung mit Beleuchtungsvorrichtung und Verfahren zum Betreiben einer Beleuchtungsvorrichtung Illumination device, the illumination assembly with lighting apparatus and method of operating a lighting device |
01/01/2014 | EP2680386A1 Reduction of Inrush Current Due to Voltage Sags by Impedance Removal Timing |
01/01/2014 | EP2678913A2 Device for protecting electric equipment from overvoltage and lightening |
01/01/2014 | EP2678912A1 Surge protection circuit and method for testing a surge protection circuit |
01/01/2014 | CN203377899U Wireless network bridge application device of omnidirectional antenna |
01/01/2014 | CN203377601U Standby transformer reactive power compensator capable of adjusting power factor |
01/01/2014 | CN203377596U Lightning protection circuit capable of protecting RS485 communication signal |
01/01/2014 | CN203377595U Lightning protection circuit capable of protecting RS422 communication signal |
01/01/2014 | CN203377594U Multifunctional power switch |
01/01/2014 | CN203377593U Overvoltage protection device of SDI transmission system |
01/01/2014 | CN203377592U Plugging protection module-contained surge protector with capability of signal uninterruption |
01/01/2014 | CN203377591U lightning protection apparatus having intelligent degradation alarm system |
01/01/2014 | CN103493322A Method for controlling a current-interrupting device in a high-voltage electrical network |
01/01/2014 | CN103491669A Device for generating electromagnetic radiation and electronic front connecting device |
01/01/2014 | CN103490406A Arc extinction device for solving problem of interphase short circuit according to full resistance method |
01/01/2014 | CN103490405A Method for automatically controlling capacity modulating type arc suppression coil |
01/01/2014 | CN103490404A Tuning method of following-setting-type arc suppression coil of power distribution network system and fault line selection method |
01/01/2014 | CN103490403A Method and systems for discharging energy from an electrical fault |
01/01/2014 | CN103490402A Photovoltaic module grounding device, photovoltaic module grounding monitoring device and monitoring method |
01/01/2014 | CN103490401A Misoperation-preventive locking power board |
01/01/2014 | CN103490400A Distributed level overvoltage control system and method |
01/01/2014 | CN103490399A 保护电路 Protection circuit |
01/01/2014 | CN103490398A Direct axis current protection method and device for PMSM (permanent magnet synchronous motor) transmission system |
01/01/2014 | CN103490397A Current output type safe isolated gate |
01/01/2014 | CN103490396A Current limiting circuit |
01/01/2014 | CN103490395A Method for limiting line short-circuit currents by using twin-core controllable phase shifter |
01/01/2014 | CN103490283A Square gas switch with multiple gaps connected in parallel and discharge circuit comprising same |
01/01/2014 | CN103489572A Transformer with lightning protection function |
01/01/2014 | CN103489563A Automatic safety discharging device and safety discharging method for demagnetizing equipment |
01/01/2014 | CN103481835A Vehicle-mounted electronic device |
12/31/2013 | US8619402 Data port transient protection apparatus and methods |
12/31/2013 | US8619401 Current source regulator |
12/31/2013 | US8619400 Circuitry to prevent overvoltage of circuit systems |
12/31/2013 | US8619397 Non-linear power management device for input power protection |
12/31/2013 | US8618775 Detection of over-current shorts in a battery pack using pattern recognition |
12/31/2013 | CA2693415C Discrete hot swap and overcurrent-limiting circuit |
12/27/2013 | WO2013189314A1 Protection circuit of communication interface |
12/27/2013 | WO2013189152A1 Electrostatic discharge protection circuit, array substrate, and display device |
12/26/2013 | US20130343537 Frame injected dsl via face fed protector module |
12/26/2013 | US20130342949 Lightning protection radio remote unit, distributed base station, lightning protection system and method |
12/26/2013 | US20130342948 A protection system for an it electrical distribution system having a floating reference conductor |
12/26/2013 | US20130342941 Sige based gate driven pmos trigger circuit |
12/26/2013 | US20130342940 Electrostatic discharge protection circuit |
12/25/2013 | EP2677616A1 Interface unit comprising an overcurrent and overvoltage protection device |
12/25/2013 | EP2676347A1 Electronic device and protection element therefor, for use in potentially explosive areas |
12/25/2013 | CN203368505U Gateway communication circuit used for electric power steering system |
12/25/2013 | CN203368334U Intelligent quick-responsive three-phase variable-frequency electric control system suitable for electromagnetic stirrerS |
12/25/2013 | CN203368022U Single-phase grounding fault fundamental wave current full compensation device |
12/25/2013 | CN203368021U Protection circuit for set top box |
12/25/2013 | CN203368020U Brake device used for wind power generation current transformer system |
12/25/2013 | CN203368019U Overvoltage protection circuit for AC directly driven LED circuit |
12/25/2013 | CN203368018U High-capacity explosion-proof intelligent voltage-limiting apparatus |
12/25/2013 | CN203368017U Improved structure of lightning protection circuit |
12/25/2013 | CN203368016U Overload current-limiting protection circuit |
12/25/2013 | CN203368015U A surge inhibition current protective device |
12/25/2013 | CN203368014U Soft start protection device and compressor diagnosis protection device comprising same |
12/25/2013 | CN203363970U Wind and light complementary control device for street lamp |
12/25/2013 | CN103477523A 浪涌保护装置 Surge protection devices |
12/25/2013 | CN103477522A Device for protecting electric equipment from overvoltage and lightening |
12/25/2013 | CN103475238A Voltage conversion circuit |
12/25/2013 | CN103474987A Electric transmission line on-line monitoring device energy obtaining system based on ground wire induction |
12/25/2013 | CN103474982A Arc extinction device for eliminating interphase short circuit in single-resistance method |
12/25/2013 | CN103474981A Distribution network single-phase ground protection method based on zero-sequence current sequential overlapping derivative transformation direction |
12/25/2013 | CN103474980A Transient-power-direction-based single-phase grounding protection method for power distribution network |
12/25/2013 | CN103474979A Arc suppression coil device of active and full compensation |
12/25/2013 | CN103474978A Application of lightning protection technology on aspect of video monitoring |
12/25/2013 | CN103474977A Lightning protection device, lightning protection combination and lightning protection cabinet |
12/25/2013 | CN103474976A Network cable lighting-prevention conversion device |
12/25/2013 | CN103474975A Lightning-protection nanometer magnet choke device |
12/25/2013 | CN103474952A Short-circuit protection device for power frequency current and lightning surge automatic selection channel |
12/25/2013 | CN103474405A Electromagnetic interference prevention overvoltage protection device |
12/25/2013 | CN103473203A USB (universal serial bus) interface circuit with electrostatic protection |
12/25/2013 | CN102637054B 50-ampere power consumption balanced-type high-power constant-current source |
12/25/2013 | CN102057551B Protecting apparatus |
12/25/2013 | CN101626156B Overvoltage protection element |
12/25/2013 | CN101540498B Method and device for controlling non-setting inrush current of high-voltage switch |
12/24/2013 | US8614872 Switching power source apparatus |
12/24/2013 | US8614871 Battery system |
12/24/2013 | US8614867 Power supply for an electronic tripping unit for a switch, in particular a circuit breaker for low voltages, and a switch having a power supply such as this |
12/24/2013 | US8614866 Hybrid switch circuit |
12/24/2013 | DE102012209781A1 Vorrichtung zum erzeugen von elektromagnetischer strahlung und elektronisches vorschaltgerät An apparatus for generating electromagnetic radiation and electronic ballast |
12/24/2013 | DE102011050346B4 Verfahren und Schaltungsanordnung zur Fehlerdiagnose in isolierten Hoch- und Mittelspannungsnetzen Method and circuit for fault diagnosis in isolated high and medium voltage networks |
12/24/2013 | DE102006034168B4 Gekapselter Überpannungsabeiter für den Einsatz als Netzfunkenstrecke im Niederspannungsbereich mit getrennten, elektrisch in Reihe geschalteten Funktionseinheiten Sealed Überpannungsabeiter for use as power spark gap in the low voltage range with separate electrically connected in series functional units |
12/19/2013 | WO2013187994A1 Method and apparatus to improve esd robustness of power clamps |
12/19/2013 | WO2013187293A1 Esd protection device |
12/19/2013 | US20130335874 Electronic device |
12/19/2013 | US20130335873 Overvoltage protection circuit and method thereof |
12/19/2013 | US20130335871 Electrostatic discharge protection device and composite electronic component including the same |
12/19/2013 | US20130335870 Electrostatic protection circuit and semiconductor device |
12/19/2013 | US20130335869 Overvoltage protection devices including wafer of varistor material |
12/19/2013 | US20130335868 Method and Apparatus to Improve ESD Robustness of Power Clamps |
12/19/2013 | US20130335867 Charge injection and drain-based electrical overstress (eos) protection apparatus and method |