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)
02/2011
02/08/2011US7884618 Testing system for electricity safety and a testing method therefor
02/08/2011CA2359500C Fault type selection system for identifying faults in an electric power system
02/03/2011WO2011013265A1 Protection control monitoring device
02/03/2011WO2011012450A1 Device and method for providing electrical energy at a load circuit
02/03/2011WO2011011985A1 Surge protector with thermal protection device
02/03/2011US20110029958 Time-based breakpoints in debugers
02/03/2011US20110026184 Overvoltage protection element
02/03/2011US20110026183 Circuit protection device and system
02/03/2011US20110026182 Swell sustaining transient voltage surge suppressor
02/03/2011US20110026181 Protective switching device for monitoring the electrical current flow to an electrical user and method for monitoring the electrical current flow to an electrical user by way of a protective switching device
02/03/2011US20110026180 Integrator and circuit-breaker having an integrator
02/03/2011US20110026178 Interface circuit and communication device
02/03/2011US20110026171 Electronic Device for Protecting Against a Polarity Reversal of a DC Power Supply Voltage, and its Application to Motor Vehicles
02/03/2011US20110025515 Standalone self-supplied numeric controlled relay
02/03/2011US20110025400 Electronic dc circuit breaker
02/02/2011EP2279559A1 Relay system comprising two jfet transistors in series
02/02/2011EP2279513A1 Surge arrester comprising an integrated protection device
02/02/2011CN201733089U Surge protector
02/02/2011CN201733076U Protecting device for phase failure display of electric motor
02/02/2011CN201733067U Multi-path residual current monitoring device with wireless or carrier transmission module
02/02/2011CN201733066U High-voltage electrified display locking device based on fundamental wave and phase
02/02/2011CN201733065U Low-voltage single-phase power source overvoltage protective device
02/02/2011CN201733064U Intelligent integrated over-voltage protector for electric locomotive
02/02/2011CN201733063U Over-voltage dual protector
02/02/2011CN201733062U Automatic alarm circuit for short-circuit protection of DC power supply
02/02/2011CN201733061U Protection module of semiautomatic block information transmission conversion device
02/02/2011CN201733060U Intelligent electricity-limiting miniature circuit breaker
02/02/2011CN201733059U Power supply short-circuit protection circuit
02/02/2011CN201733058U Universal breaker power-on automatic switching on device
02/02/2011CN201733057U Intelligent protective device for coaches
02/02/2011CN201732983U Mine flameproof intrinsically safe electromagnetic starter
02/02/2011CN101965669A Electronic DC circuit breaker
02/02/2011CN101965620A Residual-current circuit breaker
02/02/2011CN101964518A Electrostatic protection device
02/02/2011CN101964516A Three-phase four-wire system zero-line failure and open-phase intelligent protector
02/02/2011CN101964512A Electric leakage protector with overvoltage protective device
02/02/2011CN101964511A Overcurrent protection circuit and television
02/02/2011CN101964510A Radioactive source monitoring system
02/02/2011CN101964509A Method and device for preventing power of electric equipment from exceeding standard and electric equipment
02/02/2011CN101963835A Electronic equipment and method for dynamically allocating USB port power
02/02/2011CN101505048B Apparatus for circuit break while door closing
02/02/2011CN101336017B High-voltage transforming cubicle automatic control device suitable for electric arc heater
02/02/2011CN101187956B A device and method for realizing simulated DC feedback failure of rail traffic
02/02/2011CN101055999B Charge/discharge protection circuit and power-supply unit
02/01/2011US7882400 Information processing apparatus, storage medium supporting device, and identifier changing method
02/01/2011US7881030 Enhancement-mode field effect transistor based electrostatic discharge protection circuit
02/01/2011US7881029 Depletion-mode field effect transistor based electrostatic discharge protection circuit
02/01/2011US7881026 Semiconductor integrated circuit
01/2011
01/27/2011US20110019444 Method and apparatus for detection and control of dc arc faults
01/27/2011US20110019324 Protection Apparatus of Load Circuit
01/27/2011US20110019321 Leakage sensor and switch device for deep-trench capacitor array
01/27/2011US20110019320 Esd networks for solder bump integrated circuits
01/27/2011DE102010027406A1 Electrical appliance e.g. battery-powered drill, has voltage supply supplying load to electric motor, where load is disconnected when electrical voltage of voltage supply below and/or exceeds limit value
01/27/2011DE102009032067A1 Vorrichtung zum Schutz eines Gleichstrom-Wandlers Device for protecting a direct current converter
01/26/2011EP2278676A1 Fault direction indicator device and related methods
01/26/2011EP2278670A1 Signalisation device of the short-circuit state of an overvoltage protection arrester of one phase of an electric transport net
01/26/2011EP2277250A2 Quarter wave stub surge suppressor with coupled pins
01/26/2011CN201726200U Low-voltage phase line grounding remote alarm for 10-20kV transformer
01/26/2011CN201726189U Power supply for emergency tripping system
01/26/2011CN201726120U DC voltage reduction open circuit protector
01/26/2011CN201726115U Voltage fluctuation delay protective device of contactor
01/26/2011CN201726110U Distribution-transformer induced frequency-discrimination open-phase wireless alarm
01/26/2011CN201726107U Alarm with electrically controlled lock for preventing mistakenly entering charged chamber
01/26/2011CN201726105U Multifunctional air conditioner protection circuit
01/26/2011CN201726104U A-type residual current operated circuit breaker of electronic belt permanent magnet tripping device
01/26/2011CN201726103U A-type residual current operated circuit breaker of electronic permanent magnetic releaser
01/26/2011CN201726102U Intelligent current leakage protection circuit
01/26/2011CN201726101U Multi-purpose residual current relay
01/26/2011CN201726100U Power adapter with overvoltage and automatic recovery
01/26/2011CN201726099U Voltage deviation operated protector
01/26/2011CN201726098U Multifunctional circuit for controlling and protecting switching device
01/26/2011CN201726097U Circuit breaker capable of detecting and controlling electric current change
01/26/2011CN201726096U Short circuit protecting device of switching electrical equipment
01/26/2011CN201722512U Safety device of drum dyeing machine
01/26/2011CN201722384U Current protecting device of wireless sensing infrared sterilization inoculating instrument
01/26/2011CN101959352A LED driving circuit with LED short-circuit protection
01/26/2011CN101959348A LED stepless dimming drive circuit and LED lamp
01/26/2011CN101958534A Electrostatic discharge module and mobile communication device with electrostatic discharge module
01/26/2011CN101958529A Residual current breaker switch with additional trigger switch
01/26/2011CN101958528A Leakage protection method and device
01/26/2011CN101958527A Boost type LED constant flow source under-voltage protection circuit
01/26/2011CN101954893A Soft-start device of electromobile
01/26/2011CN101546910B Surge protector
01/26/2011CN101340083B Bearing current measuring and protecting apparatus of three-phase cage type induction motor
01/26/2011CN101076766B Improved circuit for portable lighting equipment and portable chargeable electronic equipment
01/25/2011US7876544 Electrical circuit with incendive arc prevention means
01/25/2011US7876543 Gas discharge lamp power supply
01/25/2011US7876539 Electrical apparatus with current dampening device
01/25/2011US7876538 Micro-electromechanical system based arc-less switching with circuitry for absorbing electrical energy during a fault condition
01/25/2011US7875822 Ablative-based multiphase current interrupter
01/25/2011US7874410 Intravenous pole power organizer (IVPPO)
01/25/2011CA2547867C Apparatus and method for simultaneously detecting the power state of a plurality of circuit breaker switches
01/20/2011US20110013335 Electrical Protection Component with a Short-Circuiting Device
01/20/2011US20110013334 Electrical Protection Component with a Short-Circuiting Device
01/20/2011US20110012564 Dc power tool with a safety detection device
01/20/2011DE202010015607U1 USB-USB Isolator mit automatischer Speed-Einstellung und Überlastschutz USB USB isolator with automatic speed adjustment and overload protection
01/20/2011DE102009027665A1 Elektronisch kommutierter Elektromotor mit einem Verpol- und Überspannungsschutz und Verfahren Electronically commutated electric motor with reverse polarity and over-voltage protection and procedures
01/19/2011EP2276141A2 Automotive vehicle charge port with fault interrupt circuit
01/19/2011EP2276136A1 Excess voltage protection for inverter with input EMC filter
01/19/2011EP2276135A1 Load circuit protection device