Patents
Patents for H02H 7 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions (32,726)
04/2014
04/09/2014CN103715655A Overcurrent protection device, power tool and overcurrent protection circuit
04/09/2014CN103715654A Method for restraining magnetizing inrush currents
04/09/2014CN103715653A Transformer anti-overheating protection device and control method
04/09/2014CN103713255A Circuit fault detection method, circuit fault detection system and controller
04/09/2014CN103178587B Magnetizing power source for magnetic defect detector
04/09/2014CN102545660B Phase sequence self-adaption trigger circuit of three-phase fully-controlled rectifier induction heating power supply
04/09/2014CN102437555B Over-temperature protection circuit for insulated gate bipolar transistor (IGBT)
04/09/2014CN102412567B Synthetical protector for controller area network (CAN) power system and using method thereof
04/09/2014CN102290800B Method for checking relay protection setting
04/09/2014CN102280853B Intelligent overcurrent phase-failure protector of distribution transformer
04/09/2014CN102270837B Network failure reconstruction method suitable for airplane distributed distribution system
04/09/2014CN101846729B Method and device for detecting overvoltage of power supply
04/08/2014US8693223 Power converter with zero voltage switching and related control method thereof
04/08/2014US8693222 DC-DC converter, power supply unit and an information processing apparatus
04/08/2014US8693220 System for improved wind turbine generator performance
04/08/2014US8693157 Substrate including an ESD protection function
04/08/2014US8693155 Constant voltage power supply circuit
04/08/2014US8693147 Electrical component and method for controlling an electrical component
04/08/2014US8693146 Quench detection system for a superconductor fault current limiter
04/08/2014US8692289 Fast turn on silicon controlled rectifiers for ESD protection
04/08/2014CA2719150C Condensive load protection device of self-excited generator
04/05/2014CA2829414A1 Improved protection relay system against single-phase faults for medium-voltage distribution networks
04/03/2014WO2014050669A1 Module battery and production method for module battery
04/03/2014WO2014049892A1 Electricity storage system and control device
04/03/2014WO2014049655A1 Electricity storage system
04/03/2014WO2014048459A1 Transducer arrangement for a photovoltaic system, and operating method for a photovoltaic system
04/03/2014WO2014047733A1 Fault detection and short circuit current management technique for inverter based distributed generators (dg)
04/03/2014WO2013174528A3 Gate driver for a power converter
04/03/2014US20140092655 Power Converter
04/03/2014US20140092654 Method for the operation of an inverter, and inverter
04/03/2014DE102013014428A1 Motoransteuervorrichtung mit einer Alarmpegelsetzeinheit Motor driving with an alarm level setting unit
04/03/2014DE102012217898A1 Method for operating single ended primary inductance converter utilized in motor vehicle, involves monitoring actual duty factor of loop of converter, and switching-off switching element when actual duty factor reaches permitted duty factor
04/03/2014DE102012019236A1 Control device for power supply system e.g. block-type thermal power station, measures electrical variables at electrical machine, and connects separating element with torque forming function block and monitoring function block
04/02/2014CN203522806U Water-contacted protection device for intelligent handset
04/02/2014CN203522537U Voltage stabilizing power supply circuit with light alarm function for rotary drum vacuum filter
04/02/2014CN203522242U Portable automotive ignition emergency power supply
04/02/2014CN203522164U Protective device based on microgrid short-circuit current
04/02/2014CN203522163U Protective circuit for insulated gate bipolar power tube
04/02/2014CN203522162U Undervoltage protection and overcurrent protection circuit
04/02/2014CN203522161U Single lithium battery protection chip having precise time delay and sleep functions
04/02/2014CN203522160U Cell protection circuit having secondary overvoltage/under-voltage protection function
04/02/2014CN203522159U Cell protection circuit
04/02/2014CN203522158U Battery protecting circuit with battery core balancing function and battery system
04/02/2014CN203522157U Heavy current protective device for automobile emergency starting power supply
04/02/2014CN203522156U Phase current balance protection circuit of automobile frequency converter
04/02/2014CN203522155U New type flyback converter input overvoltage protection circuit
04/02/2014CN203522154U Over-current protective device of frequency converter
04/02/2014CN203522153U LED television backlight short circuit protection circuit and short circuit protector
04/02/2014CN203522152U Motor protector for industrial wastewater treatment equipment
04/02/2014CN203522151U Voltage protection device and fan
04/02/2014CN203522150U Protection circuit used for brushless DC motor and brushless DC motor
04/02/2014CN203522149U Electric hand drill safety control apparatus capable of changing rotation direction automatically
04/02/2014CN203522148U Motor overload protection device
04/02/2014CN203522147U Torsion overload protector
04/02/2014CN203522146U Motor protector
04/02/2014CN203522145U High-temperature automatic stop control circuit for motor of sludge dewaterer
04/02/2014CN203522144U Motor safety controller for processing mill
04/02/2014CN203522143U Motor stalling detection circuit
04/02/2014CN203522142U Motor integrated protector for cold chain
04/02/2014CN203522141U Intelligent agricultural transformer phase-loss open-phase automatic protection device
04/02/2014CN203522140U Protection device for static oiling machine
04/02/2014CN203522139U Current transformer secondary open-circuit rapid protection circuit
04/02/2014CN203522126U Electric power overvoltage protection circuit used for industrial injection machine
04/02/2014CN203513016U Power supply open-phase protection device of lift control cabinet
04/02/2014CN103703673A Method and control device for protection time setting in electric drive system
04/02/2014CN103703672A Method for controlling the resisting torque of a motor vehicle alternator, and system for implementing this method
04/02/2014CN103703590A Lithium-ion rechargeable battery
04/02/2014CN103701370A Non-salient pole synchronous motor-based out-of-step detection and resynchronization excitation control method
04/02/2014CN103701369A Novel high power density DC brushless motor driver circuit
04/02/2014CN103701168A Charging management method and charging management system of lithium battery
04/02/2014CN103701163A Battery, aircraft with battery and battery control method
04/02/2014CN103701162A Battery management system
04/02/2014CN103701107A Adaptive differential protection method
04/02/2014CN103701106A Relay protection method applied to micro-grid
04/02/2014CN103701105A Thermal overload protection method, device and system for power electronic equipment
04/02/2014CN103701104A Short circuit detection and protection method and device for multiple IGBTs (insulated gate bipolar transistors)
04/02/2014CN103701103A Protective device capable of preventing over-discharge of lead-acid storage battery
04/02/2014CN103701102A Constant-current discharging detection device for nickel-metal hydride battery
04/02/2014CN103701101A Circuit structure for improving short-circuit protection performance of large-sized battery pack by using capacitor
04/02/2014CN103701100A Switching power supply and over-voltage protection circuit thereof
04/02/2014CN103701099A Low-cost inversion output short circuit protection circuit
04/02/2014CN103701098A Control and protection system for current converter, and protection method thereof
04/02/2014CN103701097A Protection system of motor brake
04/02/2014CN103701096A Interturn protection method of TCT type controllable high-resistance triangular connecting winding
04/02/2014CN103701095A Test equipment protection circuit
04/02/2014CN103698640A Intelligent charging detection circuit and movable power supply
04/02/2014CN102427219B Short circuit protection system and safe closing control method of three-level converter power tube
04/02/2014CN102386616B Simulation verification method for relay protection coordination relationship
04/02/2014CN102368606B Leakage protection method of frequency converter and apparatus thereof
04/02/2014CN102315806B Smooth soft starting device of direct current motor
04/02/2014CN102195523B Intelligent solar photovoltaic power supply system
04/02/2014CN102097789B Over-current or short-circuit state detection circuit of insulated gate bipolar transistor (IGBT)
04/02/2014CN102074937B Ranging method for adaptive transmission line fault of model
04/01/2014US8689033 Power supply and data signal interface circuit with overvoltage protection
04/01/2014US8688247 Lock-out, tag-out system using safety programmable logic controller
04/01/2014US8687390 Active clamp DC-DC converter
04/01/2014US8687389 Apparatus having a converter
04/01/2014US8687335 Electronic circuit breaker of a power supply having dual output ports
04/01/2014US8687332 Transistor circuit with protecting function
04/01/2014US8687327 Electronic system for converting DC voltage into AC voltage
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