Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232) |
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03/19/2014 | CN203491882U Lightning protection circuit of switching power supply |
03/19/2014 | CN203491719U Thermal electric power system |
03/19/2014 | CN203491694U Wind field booster system main transformer |
03/19/2014 | CN203491693U Lightning protection circuit for router |
03/19/2014 | CN203491692U Novel base station lightning protection circuit |
03/19/2014 | CN203491691U Lightning protection nanometer magnetic choke |
03/19/2014 | CN203491690U An anti-open-circuit current transformer protector |
03/19/2014 | CN203491689U Rapid self-discharge circuit of explosion-proof inverter DC (Direct Current) bus |
03/19/2014 | CN203491688U Safety circuit of dangerous place field control device |
03/19/2014 | CN203491687U Input protection circuit applied to LM1815 chip |
03/19/2014 | CN203491686U Lightning protection device for overhead transmission line |
03/19/2014 | CN203491684U Low-voltage power transformation operation safety protection device |
03/19/2014 | CN203490273U On-line monitoring system for earth current of transformer iron core |
03/19/2014 | CN103650279A Surge protection device |
03/19/2014 | CN103647268A Selection method of 110 kV power distribution network neutral resistor |
03/19/2014 | CN103647267A High-capacity double-adjustment turn-adjusting arc-extinguishing coil |
03/19/2014 | CN103647266A Device and method for restraining extra-high-voltage main transformer no-load closing electromagnetic transient problems |
03/19/2014 | CN103647265A Integrated circuit full-chip electro static discharge protection method and circuit |
03/19/2014 | CN103647264A Strong coupled type power failure current limiter |
03/19/2014 | CN102138265B Assembled battery, and control system for the assembled battery |
03/19/2014 | CN101728826B An input surge protection device using JFET |
03/18/2014 | US8675330 Safety switching device for setting a safety-related device to a safe state |
03/18/2014 | US8675324 Short-circuit isolator |
03/18/2014 | US8675323 Method of manufacturing a package |
03/18/2014 | US8675322 Electrostatic discharge protection device |
03/18/2014 | US8675320 Overcurrent detection circuit and overcurrent detection method |
03/13/2014 | US20140071573 Electrical Load Controller with Neutral Detection |
03/13/2014 | US20140071568 DC Power Source Isolation with Diode and Bypass Switch |
03/13/2014 | US20140071567 Semiconductor device |
03/13/2014 | US20140071566 Overvoltage protection for multi-chip module and system-in-package |
03/13/2014 | US20140071384 Electrostatic discharge arrangement for an active matrix display |
03/13/2014 | US20140071109 Electrostatic discharge protection circuit and display apparatus using the same |
03/13/2014 | DE112011105340T5 Thermische Metalloxidvaristor-Schaltungsschutzeinrichtung Thermal metal-oxide-circuit protection device |
03/13/2014 | DE102012216185A1 Begrenzerschaltung für einen Halbleitertransistor und Verfahren zum Begrenzen der Spannung über einen Halbleitertransistor Limiter circuit for a semiconductor transistor and method for limiting the voltage across a semiconductor transistor |
03/12/2014 | EP2706639A1 Surge protection circuit |
03/12/2014 | EP2706638A1 Protective device for LC filter |
03/12/2014 | EP2705587A1 Method for controlling a current-interrupting device in a high-voltage electrical network |
03/12/2014 | CN203482089U Current limiting circuit |
03/12/2014 | CN203481916U Novel high voltage line CT electricity taking device |
03/12/2014 | CN203481818U Network lightning protection system with novel port structure |
03/12/2014 | CN203481817U Novel video signal lightning protection system |
03/12/2014 | CN203481816U IGBT Miller effect-removing device |
03/12/2014 | CN203481815U Integrated overvoltage protection device for high-voltage system |
03/12/2014 | CN203481814U Anti-misoperation lockout power panel |
03/12/2014 | CN203481813U Alternating-direct-current power source voltage stabilization and protection circuit |
03/12/2014 | CN203481812U Novel 100M network lightning protection device |
03/12/2014 | CN203481811U Gigabit network lightning protection device |
03/12/2014 | CN203481810U Overvoltage protector |
03/12/2014 | CN203481809U Quarter-wavelength lightning protection device of micro-strip circuit board type |
03/12/2014 | CN203481808U Lightning protection circuit protecting RS232 communication signal |
03/12/2014 | CN203481807U LED lamp adapter anti-surge circuit |
03/12/2014 | CN203481806U Magnetic resistance current limiter |
03/12/2014 | CN203481805U Electric reactor |
03/12/2014 | CN203481782U Short circuit protection device for power frequency current and lightning surge automatic selection channel |
03/12/2014 | CN203480971U Lightning arrester for protecting 110KV cables |
03/12/2014 | CN203480662U Household water-accumulation notification equipment |
03/12/2014 | CN203480661U Mixed-type water accumulation prompting device |
03/12/2014 | CN203480615U Novel shooting and recording antitheft device |
03/12/2014 | CN203475978U Magnetic starting video-recording protector |
03/12/2014 | CN103636092A Static surge protection device |
03/12/2014 | CN103636091A Superconducting fault current limiter recovery system |
03/12/2014 | CN103633637A Electrostatic discharge protection circuit and protection method |
03/12/2014 | CN103633636A Lightning arrester degradation protection device |
03/12/2014 | CN103633635A Comprehensive lightning protection method for broadcasting and TV stations |
03/12/2014 | CN103633634A Overvoltage protection circuit |
03/12/2014 | CN103633633A Restraining method of startup input inrush current of power supply |
03/12/2014 | CN103633632A Saturated bridge type short circuit fault current limiter |
03/12/2014 | CN102904240B Suppression method for secondary arc of super/ultra high voltage transmission line |
03/12/2014 | CN102404903B Lamp driving device |
03/12/2014 | CN102299512B High-capacity capacitor overvoltage protection circuit adopting BOD (bistable optical device) element |
03/12/2014 | CN102280870B Switching circuit board and protection method thereof |
03/12/2014 | CN102204053B Multi-staged overvoltage protection circuit |
03/12/2014 | CN102074958B Thyristor valve controlled type controllable paralleling reactor device configured with parallel valve branches |
03/12/2014 | CN102074949B Integrated protecting circuit for resisting peak surge, operation, resonance and lightning strike over-voltage |
03/12/2014 | CN102074943B Current limiting protection device and power supply |
03/12/2014 | CN102074428B 开关模块 Switch Modules |
03/12/2014 | CN102064555B Chain type STATCOM (Static Synchronous Compensator) chain unit bypass structure with mechanical switch |
03/12/2014 | CN102055181B Switching tube protection circuit |
03/12/2014 | CN102044866B Electrical-overstress protection circuit for integrated circuit |
03/12/2014 | CN102035195B Automatic ground protective device for light rail garage power and control method thereof |
03/12/2014 | CN101984532B Thyristor dv/dt protection method |
03/12/2014 | CN101771270B 故障限流器 Fault current limiter |
03/11/2014 | US8670219 High-voltage devices with integrated over-voltage protection and associated methods |
03/07/2014 | CA2825504A1 Method and systems for operating a wind turbine using dynamic braking in response to a grid event |
03/06/2014 | WO2014032965A1 Protection circuit and method for protecting a circuit |
03/06/2014 | US20140066315 Superconductive device without an external shunt system, in particular with a ring shape |
03/06/2014 | US20140063672 System for supplying direct current and dc voltage protected by a current limiter, and method for protecting same |
03/06/2014 | US20140063665 Multiple Device Voltage Electrostatic Discharge Clamp |
03/06/2014 | US20140063664 Ground Controlled Outlet |
03/06/2014 | US20140063663 Power-rail electro-static discharge (esd) clamp circuit |
03/06/2014 | DE102012108105A1 Schutzschaltung und Verfahren zum Schutz einer Schaltung Protection circuit and method for protecting a circuit |
03/05/2014 | EP2702655A1 Method and apparatus for clearing a fuse in a single output multi load configuration |
03/05/2014 | CN203466565U Breakage protective circuit for serially-connected energy module connecting pieces based on diodes |
03/05/2014 | CN203466003U Automatic safe discharging device used for demagnetization equipment |
03/05/2014 | CN103620940A Power conversion device |
03/05/2014 | CN103620703A Thermal metal oxide varistor circuit protection device |
03/05/2014 | CN103618331A Direct-current overvoltage current limiting control method of flexible HVDC convertor station |
03/05/2014 | CN103618304A Combined high-power-capacity overvoltage protector |
03/05/2014 | CN103618303A Vehicle-mounted terminal protection circuit |
03/05/2014 | CN103618302A Ethernet Zener type guard grating application |