| 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) |
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| 03/06/2013 | CN101911420B The circuit apparatus for protecting a pre-charge resistance using an inter-lock switch |
| 03/06/2013 | CN101814725B Secondary battery |
| 03/06/2013 | CN101789618B Wind-solar compensation type solar energy power supply system |
| 03/06/2013 | CN101789602B Dynamic simulation device of extra-high, ultrahigh voltage thyristor controlled series compensation device and test method thereof |
| 03/05/2013 | US8391034 Power supply module with filtering circuit and power supply module assembly |
| 03/05/2013 | US8391033 Power transfer devices, methods, and systems with crowbar switch shunting energy-transfer reactance |
| 03/05/2013 | US8390964 Protection apparatus and method for an isolated type power supply |
| 03/05/2013 | US8390231 Method for obtaining a criterion for detecting obstacles to the closure of an opening |
| 02/28/2013 | WO2013026669A2 Protection of a three-phase motor in the field-weakening range |
| 02/28/2013 | US20130051093 Method and apparatus for varying current limit to limit an output power of a power supply |
| 02/28/2013 | US20130050888 High voltage dc switchyard with semiconductor switches |
| 02/28/2013 | US20130050880 Solid state power controller for high voltage direct current systems |
| 02/28/2013 | US20130049654 Power conversion apparatus |
| 02/28/2013 | DE102011053013A1 Symmetrical device for balancing voltage division of serially-connected energy storage devices e.g. capacitors, has control unit that drives switch element of bypass circuit according to voltage requirement of energy storage device |
| 02/28/2013 | CA2787726A1 Integrated safety disconnects for power systems |
| 02/28/2013 | CA2787574A1 Power distribution network fault management |
| 02/28/2013 | CA2786185A1 Analytical and combinatorial fault restoration |
| 02/27/2013 | EP2562907A2 Cell balance device and battery system |
| 02/27/2013 | EP2562900A2 Power management and distribution for power system with constant power loads |
| 02/27/2013 | EP2560908A1 Safety circuit |
| 02/27/2013 | CN202759409U Low voltage synchronous generator excitation system |
| 02/27/2013 | CN202759403U Motor protection controller |
| 02/27/2013 | CN202759378U Overvoltage turn-off power supply circuit |
| 02/27/2013 | CN202759294U Wireless charger with charging protection function |
| 02/27/2013 | CN202759270U Solar charge controller |
| 02/27/2013 | CN202759221U Network relay protection device capable of realizing rapid fault isolation and reconstruction |
| 02/27/2013 | CN202759220U Protective device of gas discharge tube and communication equipment |
| 02/27/2013 | CN202759219U Power line with large-current protection device |
| 02/27/2013 | CN202759218U A voltage adjusting circuit |
| 02/27/2013 | CN202759217U Power protection circuit for high-frequency heating device |
| 02/27/2013 | CN202759216U Overload alarm device for power transformer |
| 02/27/2013 | CN102948257A Fault protected current source for lighting element testing |
| 02/27/2013 | CN102946186A Active harmonic suppressing mechanism |
| 02/27/2013 | CN102946125A Method and system for weakening charging voltage overshooting |
| 02/27/2013 | CN102946123A Control method of intelligent charger software |
| 02/27/2013 | CN102946101A Single-power-supply ring network power supply system |
| 02/27/2013 | CN102946092A Line transformer protection device with tripping and closing current measuring function |
| 02/27/2013 | CN102946091A Current type overload protection device for circuit breakers |
| 02/27/2013 | CN102946090A Power transmission line protection realizing method based on multi-dimensional information |
| 02/27/2013 | CN102946089A Power system relay protection system based on wireless transmission |
| 02/27/2013 | CN102946088A Switch-on/off control circuit for electric meter relay and intelligent electric meter |
| 02/27/2013 | CN102946087A Low voltage frequency converter provided with overvoltage protection function and overvoltage protection method of low voltage frequency converter |
| 02/27/2013 | CN102946086A Transformer protection realizing method based on multi-dimensional information |
| 02/27/2013 | CN102944329A Temperature measurement system and temperature measurement method for low-voltage intelligent capacitor |
| 02/27/2013 | CN102108942B 风力发电系统及其控制方法 Wind power generation system and control method |
| 02/27/2013 | CN101917035B Battery pack, battery protection processing apparatus, and startup control method of the battery protection processing apparatus |
| 02/27/2013 | CN101814728B Fault protection reset controlling system and method for large-power IGBT (Insulated Gate Bipolar Translator ) optical fiber driving circuit |
| 02/27/2013 | CN101673940B Distance protection method |
| 02/27/2013 | CN101295930B 高压电源 High Voltage Power Supply |
| 02/26/2013 | US8385033 Emergency run-down unit for superconducting magnets |
| 02/26/2013 | US8385032 High efficiency bridgeless PFC converter and method |
| 02/26/2013 | US8385031 Apparatus and method for providing power from a power source to a portable electrical device |
| 02/26/2013 | US8385030 Component fault detection for use with a multi-phase DC-DC converter |
| 02/21/2013 | WO2013023753A2 A method of distance protection of parallel transmission line |
| 02/21/2013 | US20130044524 Protection circuit in triac applications |
| 02/21/2013 | US20130044523 Power supply having a surge protection circuit |
| 02/21/2013 | US20130043845 Method for operating a wind turbine in the event of the occurrence of a grid fault with a voltage drop and such a wind turbine |
| 02/21/2013 | US20130043816 Methods, systems and apparatus for controlling a multi-phase inverter |
| 02/21/2013 | US20130043815 Protection circuit for a d.c. brushless motor pump |
| 02/21/2013 | DE102011081184A1 Verfahren zum Schalten in einer Anordnung von Leistungsschaltern sowie Anordnung aus einer Mehrzahl von Leistungsschaltern A method for switching in an array of circuit breakers as well as arrangement of a plurality of circuit breakers |
| 02/20/2013 | EP2560277A1 Protection of an alternating current engine in the field weakening range |
| 02/20/2013 | EP2560259A1 A method of distance protection of parallel transmission line |
| 02/20/2013 | EP2559323A1 Fault protected current source for lighting element testing |
| 02/20/2013 | CN202750036U Light adjusting motor control circuit of automotive headlamp |
| 02/20/2013 | CN202750028U 5V stabilized power supply with protection function |
| 02/20/2013 | CN202749970U Motor with overvoltage protection apparatus |
| 02/20/2013 | CN202749888U Automatic charging stopping device for LED flashlight |
| 02/20/2013 | CN202749859U Battery with intelligent discharging protection |
| 02/20/2013 | CN202749811U Anti-grid power voltage fluctuation shutdown control device for heating medium circulating pump |
| 02/20/2013 | CN202749804U Intelligent temperature controller for storage battery of electric vehicle |
| 02/20/2013 | CN202749803U Short-circuit protection circuit for direct-current power supply having function of pre-charging |
| 02/20/2013 | CN202749802U Circuit for protecting IGBT in output short-circuit state of frequency converter |
| 02/20/2013 | CN202749801U Power transformer oil temperature monitoring protector |
| 02/20/2013 | CN202749309U Residual current circuit breaker |
| 02/20/2013 | CN102939695A Protection circuits and methods for electrical machines |
| 02/20/2013 | CN102938616A High-power electromagnetic surveying transmitter system |
| 02/20/2013 | CN102938558A Low-voltage distribution system with leakage protection device |
| 02/20/2013 | CN102938557A Novel enable control circuit for power management system |
| 02/20/2013 | CN102938556A Protecting, measuring and controlling integrated device with unbalanced current protection function for capacitor |
| 02/20/2013 | CN102938555A Multi-stage temperature protection device for transformer |
| 02/20/2013 | CN102938554A High-power adjustable clamping circuit for automobile jammer |
| 02/20/2013 | CN102938539A Double security arrangement implementation method for GOOSE (Generic Object Oriented Substation Event) virtual loop |
| 02/20/2013 | CN101741062B Inter-turn protection method for power generator |
| 02/20/2013 | CN101641849B Fuse saving power distribution system fault protection |
| 02/20/2013 | CN101501601B System and method for driving a power field-effect transistor (fet) |
| 02/19/2013 | US8379419 Soft-stop overvoltage protection circuit for power factor correction type switching power supply unit |
| 02/19/2013 | US8379361 Power supply system and method |
| 02/19/2013 | US8378650 Way out of balance (WOB) current correction for use with a multi-phase DC-DC converter |
| 02/19/2013 | US8378647 Power supply unit and information processor |
| 02/19/2013 | US8378626 Management device for charging circuit and wireless terminal |
| 02/14/2013 | US20130039098 Offline ac-dc controller circuit and a converter comprising the same |
| 02/14/2013 | CA2844200A1 Solenoid operated circuit |
| 02/13/2013 | EP2557646A1 Configuration of an IEC 61850 teleprotection IED for inter-substation communication |
| 02/13/2013 | CN202737809U Variable-frequency governor for fan in automobile cab |
| 02/13/2013 | CN202737798U Controller for position sensor-free and brushless direct current motor |
| 02/13/2013 | CN202737740U Boost switching regulator control circuit, switching regulator and electronic device |
| 02/13/2013 | CN202737582U High-voltage multifunctional control cabinet |
| 02/13/2013 | CN202737540U Outdoor charger for mobile phone lithium battery |
| 02/13/2013 | CN202737451U Breaker with fault line selection function |
| 02/13/2013 | CN202737450U Over-discharge protector of storage battery |