Patents for H02H 9 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection (21,232) |
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12/12/2012 | CN202602268U Power-saving filter |
12/12/2012 | CN202602267U High-voltage heavy-current transient automatic discharge switch with preset gap |
12/12/2012 | CN202602266U Backup protection type surge protector |
12/12/2012 | CN202602265U Positive temperature coefficient thermal sensitive resistor and power resistor thermal coupled apparatus |
12/12/2012 | CN202602264U Anti-interference microcomputer protective relaying device |
12/12/2012 | CN202602252U Device for suppressing direct current at neutral point of transformer by adjustable resistor method |
12/12/2012 | CN102823099A Power source switch device and power source system provided with same |
12/12/2012 | CN102820655A Control method of voltage support and fault current limit compatible power electronic system |
12/12/2012 | CN102820654A Cooperative control method of power electronic system |
12/12/2012 | CN102820651A Intelligent motor electricity saver |
12/12/2012 | CN102820645A High-precision overvoltage protection circuit and switch power circuit with multiplexed output |
12/12/2012 | CN101969194B Interface anti-static method, anti-static protection circuit and electrical equipment |
12/12/2012 | CN101795515B Started overshoot current suppression circuit |
12/12/2012 | CN101626155B Outdoor alternating current power supply lightening protector |
12/11/2012 | US8331072 Timer controlled, short and open circuit fault detection with slew-rate boosted output driver |
12/11/2012 | US8331069 Structure for protecting an integrated circuit against electrostatic discharges |
12/11/2012 | US8331068 ESD protection for FinFETs |
12/11/2012 | US8331067 Method and apparatus for moving material |
12/06/2012 | WO2012166374A1 Static surge protection device |
12/06/2012 | WO2012163398A1 System for distributing electric power to an electrical grid |
12/06/2012 | WO2012163150A1 Lightning protection system |
12/06/2012 | US20120307408 Semiconductor device with a plurality of power supply systems |
12/06/2012 | US20120307407 Semiconductor device |
12/06/2012 | US20120307406 Semiconductor integrated circuit |
12/06/2012 | US20120307405 Integrated circuit having electrostatic discharge protection |
12/06/2012 | US20120306600 Magnetic Actuator With Multiple Air Gaps |
12/06/2012 | CA2834687A1 Static surge protection device |
12/05/2012 | EP2530804A1 Improved ground fault handling in power distribution systems with mixed underground and aerial power lines |
12/05/2012 | CN202587469U Light fixture switch control circuit |
12/05/2012 | CN202586775U Multi-functional lightning resisting power supply |
12/05/2012 | CN202586371U Power grid fault isolation system used for clean energy grid-connection |
12/05/2012 | CN202586335U Motor energy storage protection device of high-voltage switch spring operating mechanism |
12/05/2012 | CN202586334U Arc and resonance extinction and overvoltage protection device |
12/05/2012 | CN202586333U A moistureproof overvoltage protector |
12/05/2012 | CN202586332U Strong type large through-flow capacity surge protector |
12/05/2012 | CN202586331U Constant current source protection circuit |
12/05/2012 | CN202586330U Electricity-limiting circuit with lightning protection function |
12/05/2012 | CN202586329U Self-discharge circuit |
12/05/2012 | CN202586328U Nested lightning protection device for single-phase power source |
12/05/2012 | CN202586327U Charge pump output protection driving device for near field communication (NFC) emission device |
12/05/2012 | CN202586326U Switching value acquisition circuit |
12/05/2012 | CN202586325U Lightning-protection surge-proof power source protection device |
12/05/2012 | CN202586324U Lightning protection alarm device |
12/05/2012 | CN202586323U Over-voltage and over-current protection circuit for input port of television |
12/05/2012 | CN202586322U Tripping type lightning protection circuit |
12/05/2012 | CN202586321U Surge protection device |
12/05/2012 | CN202586320U Surge protector |
12/05/2012 | CN202586319U Processing circuit of phase-shifting full-bridge diode peak in vehicle-mounted charger |
12/05/2012 | CN202586318U Abrupt change overvoltage inhibition device for electronic voltage transformer |
12/05/2012 | CN202586317U A high-capacity combined overvoltage protector |
12/05/2012 | CN202586316U Angle form overvoltage protection device |
12/05/2012 | CN202586315U Withstand voltage circuit and thermal film bakeware appliance |
12/05/2012 | CN202586314U Centralized low voltage ride-through correction system |
12/05/2012 | CN202586313U Overcurrent protection circuit for insulated gate bipolar transistor and inductive load control circuit |
12/05/2012 | CN202586312U Coupled solid-state current limiter of single-phase multiple-winding transformer |
12/05/2012 | CN202586311U Coupled-mode solid-state current limiter of three-phase multi-winding transformer |
12/05/2012 | CN202586310U Ground protection device for power brake of mobile electrical equipment |
12/05/2012 | CN202586308U Comprehensive grounding protective device for microcomputer |
12/05/2012 | CN202586297U Overvoltage-protection Li-ion battery charger protector |
12/05/2012 | CN202585749U Electricity protector |
12/05/2012 | CN102810864A Comprehensive treatment device of electric energy quality of low-voltage distribution network |
12/05/2012 | CN102810854A Protection circuit |
12/05/2012 | CN102810853A Grounding device for contact rail and control method |
12/05/2012 | CN102810852A Semiconductor device |
12/05/2012 | CN102810851A Over-current protective circuit and digital output circuit |
12/05/2012 | CN102810850A Method for protecting overload running of electric motor |
12/05/2012 | CN102810849A Undervoltage protection system |
12/05/2012 | CN102810848A Power supply protection circuit |
12/05/2012 | CN101969195B Transformer direct current magnetic bias compensation device with reactive power compensation function and control method |
12/05/2012 | CN101753055B Harmonic ratio calibrator |
12/04/2012 | US8325455 Voltage surge and overvoltage protection with RC snubber current limiter |
12/04/2012 | US8325453 Short-circuit protection for switched output stages |
12/04/2012 | US8325451 Power switching circuit |
12/04/2012 | CA2677777C Parallel connected hts fcl device |
11/29/2012 | WO2012161830A1 Overcurrent protection system |
11/29/2012 | WO2012161615A1 Lightning protection device for a high-voltage overhead line (variants) and high-voltage overhead line equipped with such a device |
11/29/2012 | WO2012161277A1 Superconducting element for superconducting current limiter, method for manufacturing superconducting element for superconducting current limiter, and superconducting current limiter |
11/29/2012 | WO2012159668A1 Inrush current control in a cell-based voltage source converter |
11/29/2012 | WO2012159626A1 Plug connector, use thereof for protecting an electrical system against surge discharge, and method for the production thereof |
11/29/2012 | WO2012159358A1 Lightning protection radio remote unit, distributed base station and lightning protection system and method thereof |
11/29/2012 | US20120300606 Current Driver Damping Circuit |
11/29/2012 | US20120300350 Gradually reducing resistive clamp |
11/29/2012 | US20120300349 Gate dielectric breakdown protection during esd events |
11/29/2012 | US20120300348 Circuit breaker panel |
11/29/2012 | CA2834106A1 Plug connector and its use for protecting an electrical system against overvoltage discharge as well as a method for its manufacture |
11/28/2012 | EP2526602A2 Superconducting fault current-limiter with variable impedance shunt coil |
11/28/2012 | CN202565018U Mixing neutral-point grounding system |
11/28/2012 | CN202564940U Arc suppression coil device |
11/28/2012 | CN202564939U Compensation electrical network single-phase grounding zero sequence equivalent circuit |
11/28/2012 | CN202564938U Computer lightning arrester |
11/28/2012 | CN202564937U Signal lightning protection device |
11/28/2012 | CN202564936U Lightning protection module of power source |
11/28/2012 | CN202564935U Lightning arrester |
11/28/2012 | CN202564934U Explosion proof type LED illumination lamp filter capacitor discharge circuit |
11/28/2012 | CN202564933U Power supply device |
11/28/2012 | CN202564932U Protection circuit for eddy current retarder controller |
11/28/2012 | CN202564798U Intelligent harmonic and arc extinction switch cabinet |
11/28/2012 | CN202561958U Novel air conditioner power saving protective device |
11/28/2012 | CN102804538A Power supply protection circuit and motor drive device provided with same |
11/28/2012 | CN102804526A Coaxial Broadband Surge Protector |