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)
12/2009
12/02/2009CN101593961A Direct-current power supply short-circuit protection circuit based on non-contact current sampling
12/02/2009CN101593960A Randomly combined anti-lightening protector
12/02/2009CN101593906A Method for realizing intelligent and safe control of mobile socket
12/02/2009CN101592517A Protection circuit of excitation power supply of weighing sensor
12/02/2009CN100566075C Intrinsically safety type uninterruptible DC voltage stabilizing power source for explosive gas atmosphere
12/02/2009CN100566070C Charging/discharging control circuit and charging type power source unit
12/02/2009CN100566068C A hardware over-voltage breaking circuit
12/02/2009CN100566067C System and method for managing fault in a power system
12/01/2009US7627792 Memory built-in self repair (MBISR) circuits/devices and method for repairing a memory comprising a memory built-in self repair (MBISR) structure
12/01/2009US7627779 Multiple hierarichal/peer domain file server with domain based, cross domain cooperative fault handling mechanisms
12/01/2009US7627055 Error adjustment in direct conversion architectures
12/01/2009US7626797 Solid state power controller with lightning protection
12/01/2009US7626796 Power distribution unit with two pole circuit breaker
12/01/2009US7626793 Transistor overcurrent detection circuit with improved response time
12/01/2009US7626792 Power supply control apparatus including highly-reliable overcurrent detecting circuit
12/01/2009US7626791 Electrical fault detection
12/01/2009US7626789 Shutoff system for pool or spa
12/01/2009US7626788 Control circuit of ground fault circuit interrupter (GFCI)
12/01/2009US7626396 Systems and methods for electrical leakage detection and compensation
12/01/2009US7626286 Method for mains-synchronous switching of circuit breakers, and an apparatus for carrying out this method
12/01/2009US7626283 Alternative alternating current power supply and method of its use
11/2009
11/26/2009WO2009143197A1 Circuit testing closer apparatus and method with dynamic test thresholds
11/26/2009CA2725580A1 Circuit testing closer apparatus and method with dynamic test thresholds
11/25/2009EP2124309A1 Switching device with extendible technology function and related process
11/25/2009EP2124068A1 Ac electric quantity measuring device
11/25/2009EP2122795A1 Device and method for detecting faulted phases in a multi-phase electrical network
11/25/2009EP2050105B1 Disconnector for a surge arrester particularly for a pluggable surge arrester
11/25/2009CN201352713Y Photovoltaic array junction box
11/25/2009CN201352705Y Pilot control circuit
11/25/2009CN201352704Y Digital hardware protection circuit
11/25/2009CN201352703Y Three-phase or single-phase multifunctional intelligent power protector
11/25/2009CN201352398Y PLC comprehensive training equipment
11/25/2009CN101589528A Residual current device
11/25/2009CN101588063A High power low residual voltage lightning protection module
11/25/2009CN101588056A Overtemperature protection circuit
11/25/2009CN100563079C Power socket device dedicated for charger and power source transmission method
11/25/2009CN100563076C A DC lightning prevention unit and its alarming circuit
11/25/2009CN100563075C Same lever/parallel double loop high resistance earthing protecting method and device
11/25/2009CN100563074C Electronic tripgear for low-voltage circuit breaker
11/24/2009US7624365 Semiconductor integrated device and apparatus for designing the same
11/24/2009US7623331 Method and system for improving voltage regulator accuracy in vehicle alternators
11/24/2009US7623330 Ground fault circuit interrupter device
11/24/2009US7623329 Leakage current detection and interruption circuit with improved shield
11/24/2009US7623326 Method and device for switching off an inductive load in a failsafe manner
11/19/2009WO2009109760A3 Lightning detection
11/19/2009US20090287430 System and Method for Detecting Leak Current
11/19/2009US20090284887 Protective device
11/19/2009US20090284886 Power amplifier
11/19/2009US20090284880 Protection Device with Lockout Test
11/19/2009US20090284875 Receptacle with arc protection circuitry
11/19/2009DE102008001780A1 Verfahren zur Fehlerbehandlung für ein Steuergerät für ein Personenschutzsystem und Steuergerät für ein Personenschutzsystem Method for error handling for a control device for a passenger protection system and control unit for a passenger protection system
11/18/2009EP2118992A1 Electronic security for a power supply
11/18/2009EP2118981A2 Calibrating a powered actuator
11/18/2009EP2118980A1 Bipolar dc to ac power converter with dc ground fault interrupt
11/18/2009CN201349292Y HDMI display data channel power supply circuit
11/18/2009CN201349121Y Direct current input overvoltage and under-voltage protection circuit
11/18/2009CN201349120Y Multi-function three-phase power source protector
11/18/2009CN201349072Y High-accuracy over-current protecting socket
11/18/2009CN101582587A Guard grating
11/18/2009CN101582586A Digital automatic harmonic elimination device
11/18/2009CN101582581A Electricity leakage-prevention and overcurrent protection device
11/18/2009CN101582580A Input/output over-voltage protection circuit
11/18/2009CN101582354A Electromagnetic short current protective device for breaker
11/18/2009CN101582353A Electromagnetic short current protective mechanism for breaker
11/18/2009CN101582239A Preset value switch stabilized voltage supply, controller, distributor and distributing system
11/18/2009CN100561814C Protecting circuit for electrical equipment
11/18/2009CN100561813C Method for restraining late-class circuit hot swap impact current and its buffering asynchronous start circuit
11/17/2009US7619869 Electrical circuit breaker
11/17/2009US7619866 Electric trip device provided with monitoring means, circuit breaker comprising one such trip device and method of monitoring
11/17/2009US7619865 Electronic circuit protection device with I2t or other function
11/17/2009US7619864 Regulator short-circuit protection circuit and method
11/17/2009US7619863 Gated thyristor and related system and method
11/17/2009US7619862 Electrostatic discharge protection circuit for high voltage input pad
11/17/2009US7619861 Protective device having a thin construction
11/17/2009US7619860 Electrical wiring device
11/16/2009CA2676575A1 Power secure
11/12/2009WO2009137817A1 Device and method for measuring current and power in a plug or receptacle
11/12/2009WO2009135833A1 Device and method for monitoring a protection apparatus
11/12/2009WO2008046068A8 System and method for detection of multiple current limits
11/12/2009US20090279329 Digital latch control circuit for over-voltage protection and power converter using the control circuit
11/12/2009US20090279224 Transient voltage compensation system and method
11/12/2009US20090279217 Building Service Ground Fault Interrupter
11/12/2009DE102008023157A1 Hydraulikventilsteuerschaltung und Verfahren zur Funktionsüberprüfung einer Hydraulikventilsteuerschaltug Hydraulic valve control circuit and method for functional verification of a Hydraulikventilsteuerschaltug
11/12/2009DE102008022744A1 Schaltungsanordnung und System zum Einsatz in einem Kraftfahrzeug A circuit arrangement and system for use in a motor vehicle
11/11/2009EP2117094A2 Monitoring switch and method for checking the switch
11/11/2009EP2116339A1 Parallel mechanism
11/11/2009EP2115845A1 Apparatus for monitoring discharge processes in a conductor of a medium-voltage or high-voltage system
11/11/2009EP2115761A2 Configurable arc fault or ground fault circuit interrupter and method
11/11/2009EP1550192B1 System and method for application monitoring and automatic disaster recovery for high-availability
11/11/2009EP1295374B1 Method and device for power system protection
11/11/2009CN201345641Y Constraining power controller
11/11/2009CN201345550Y A three-phase non-office amplifying power harmonic power-supply apparatus
11/11/2009CN201345538Y Motor protection device
11/11/2009CN201345536Y Transformer neutral point capacitance-resistance mixed type inhibition direct current device
11/11/2009CN201345534Y Switch power supply cycle-by-cycle overvoltage protective circuit
11/11/2009CN201345533Y Electronic over/under-voltage protection device for low-voltage circuit breaker
11/11/2009CN201345532Y Power output short-circuit protection circuit
11/11/2009CN201345531Y Intelligent management control device for electric energy
11/11/2009CN201345530Y Current foldback circuit
11/11/2009CN201345529Y Electric current limiter