Patents
Patents for H02H 3 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection (33,031)
12/2013
12/27/2013WO2013190087A1 Electric circuit for cutting off an electric power supply having transistors and fuses
12/27/2013WO2013190044A1 Electric circuit for cutting off an electric power supply comprising transistors and fuses having redundant logic
12/27/2013WO2013189197A1 Protection circuit, control method therefor, and telecommunication subrack equipment
12/27/2013WO2013139335A3 Multi-location current feed in a consumer power circuit with line protection
12/27/2013CA2877394A1 Electric circuit for cutting off an electric power supply having transistors and fuses
12/27/2013CA2877178A1 Electrical circuit for cutting off an electrical supply with relay and fuses
12/26/2013US20130343105 Inverter overheating protection control apparatus and inverter overheating protection control method
12/26/2013US20130343096 Control circuit for a resonant converter or the like and method therefor
12/26/2013US20130342947 Abnormal voltage detecting device
12/26/2013US20130342946 Parallel protection circuit for solar module
12/26/2013US20130342944 Electronic circuit
12/26/2013US20130342943 Input protection circuit
12/26/2013US20130342939 Circuit protector
12/25/2013EP2677617A1 Power supply circuit for an on board energy source or storage device and particularly for super-capacitor storage unit
12/25/2013EP2677616A1 Interface unit comprising an overcurrent and overvoltage protection device
12/25/2013EP2676346A1 Method and arrangement for detecting an internal failure in h-bridge connected capacitor bank
12/25/2013EP2676284A1 Residual-current-operated circuit breaker
12/25/2013CN203368826U Novel exhibit engine optical dynamic design
12/25/2013CN203368336U 变频器 Drive
12/25/2013CN203368334U Intelligent quick-responsive three-phase variable-frequency electric control system suitable for electromagnetic stirrerS
12/25/2013CN203368135U Domestic energy power supply system
12/25/2013CN203368008U Solar fan circuit with function of charge and discharge protection
12/25/2013CN203367985U Motor dual protection belt alarm automation control device
12/25/2013CN203367983U Distributed generation grid-connected detection protective system
12/25/2013CN203367978U Elevator shunt release safety protection device
12/25/2013CN203367977U Television lightning protection device
12/25/2013CN203367976U Pan and tilt overvoltage protection system
12/25/2013CN203367975U Standby electricity-saving device of overvoltage protection
12/25/2013CN203367974U Energy saving device with overvoltage protection
12/25/2013CN203367973U Selective earth leakage protection circuit
12/25/2013CN203367972U Multifunctional programmable time control device capable of setting overload current
12/25/2013CN203367971U DC load overvoltage over-current protection device
12/25/2013CN203367970U Electric vehicle power supply breaker
12/25/2013CN203367969U Overcurrent protection circuit of data unit
12/25/2013CN203367968U Electric appliance over-current protection circuit device, and ultrasonic humidifier
12/25/2013CN203367967U Protection circuit of ultrasonic humidifier and ultrasonic humidifier
12/25/2013CN203367966U Power supply short-circuit protection apparatus of multi-path clamps
12/25/2013CN203367965U High voltage arc extinction timing control circuit
12/25/2013CN203367964U Multifunctional boundary switch controller
12/25/2013CN203367963U Intelligent endpoint power supply controller
12/25/2013CN203367962U Power outputting device
12/25/2013CN203367961U Three-phase power supply protection recorder with fault recording function
12/25/2013CN103477521A Method and protective device for recognising a symmetrical short-circuit in a multi-phase electrical power supply network
12/25/2013CN103476628A Charging device for a high-voltage battery of a motor vehicle, charging assembly and method for operating a charging assembly
12/25/2013CN103475237A 5V stabilized voltage supply with protection?function
12/25/2013CN103475230A Railway signal machine state monitoring and steady power supply unit
12/25/2013CN103475220A Chip special for LNB power source and information source control
12/25/2013CN103475100A System and method for alarming and controlling fault and overload of power distribution network in countryside
12/25/2013CN103475051A Charging circuit, charger with same, and charging method
12/25/2013CN103474960A Protection method during abnormal operation of heating appliance
12/25/2013CN103474959A Detection and protection system used for distributed power-generation connected grids
12/25/2013CN103474957A Pulse type electric leakage protector with judgment function
12/25/2013CN103474956A Leakage protector with judgment function
12/25/2013CN103474955A Earth leakage protection plug
12/25/2013CN103474954A Overvoltage and undervoltage protective circuit based on three-end adjustable shunt reference source
12/25/2013CN103474953A Single-phase mains voltage controller
12/25/2013CN103474952A Short-circuit protection device for power frequency current and lightning surge automatic selection channel
12/25/2013CN103474951A Low drop-out overcurrent protection circuit with controllable output
12/25/2013CN103474950A Intelligent residual-current circuit breaker
12/25/2013CN103474949A Self-adaptive three-sectional protection setting method and device
12/25/2013CN102332705B Short-circuit protection circuit of insulated gate bipolar translator (IGBT) of high-power frequency conversion device
12/25/2013CN102013659B Surge voltage and current protective device
12/25/2013CN101640405B Power and control unit for low or medium voltage apparatus
12/25/2013CN101595615B Structure and method for self protection of power device
12/25/2013CN101540547B Refrigeration power control circuit for semiconductor detector
12/25/2013CN101395778B Load recognition and series arc detection using load current/line voltage normalization algorithms
12/25/2013CN101378184B Electronic trip units with limited read/write access
12/24/2013US8614872 Switching power source apparatus
12/24/2013US8614871 Battery system
12/24/2013US8614870 Active transient current control in electronic circuit breakers
12/24/2013US8614869 Apparatus, method, and system for integrating ground fault circuit interrupters in equipment-grounded high voltage systems
12/24/2013US8614868 Graded resistance solid state current control circuit
12/24/2013US8614866 Hybrid switch circuit
12/24/2013US8614865 Circuit arrangement
12/19/2013WO2013188155A1 Electronic device power protection circuitry
12/19/2013WO2013187616A1 Power blocking apparatus capable of blocking power supplied by detecting various arcs and overloads
12/19/2013US20130335875 Integrated circuit with automatic deactivation upon exceeding a specific ion linear energy transfer (let) value
12/19/2013US20130335872 System and method for controlled overvoltage detection
12/19/2013US20130335866 Electrical Wiring Device
12/19/2013US20130335865 Interface unit having overcurrent and overvoltage protection device
12/18/2013EP2675060A1 Power conversion apparatus
12/18/2013EP2675031A1 Overvoltage protection element
12/18/2013EP2673878A2 Electric-motor furniture drive having a power supply device
12/18/2013CN203352914U LED protection device
12/18/2013CN203352518U High-voltage starting cabinet additionally provided with no-voltage release device
12/18/2013CN203352497U Circulating pump controlling device equipped with motor restarting controller
12/18/2013CN203352441U High-side output drive circuit
12/18/2013CN203352434U Power voltage control circuit
12/18/2013CN203352285U Electric power network monitoring system
12/18/2013CN203352192U Direct current switch device
12/18/2013CN203352184U Low-voltage reactive power compensation capacitor device
12/18/2013CN203352173U Filter
12/18/2013CN203352165U Reverse polarity protection device for large current charger
12/18/2013CN203352164U Lightning protection circuit of power adapter
12/18/2013CN203352137U Protection device with overload protection circuit module single-chip microcomputer
12/18/2013CN203352136U Overvoltage/undervoltage protection circuit, protection socket and terminal
12/18/2013CN203352135U Application specific integrated circuit of A-type low-voltage leakage protector
12/18/2013CN203352134U Energy-saving device for overvoltage protection
12/18/2013CN203352133U 12V power supply protection circuit for electrically-driven controller of electric vehicle
12/18/2013CN203352132U Full-automatic over-voltage and under-voltage delay protector
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