| 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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| 03/27/2008 | DE10011982B4 Verfahren zur Überwachung und Beeinflussung eines Elektromotors A method for monitoring and influencing an electric motor |
| 03/26/2008 | EP1903652A2 Method and control to determine the maximum current absorbed by an electric motor |
| 03/26/2008 | EP1902598A1 Circuit arrangement and method for operating at least one electric lamp |
| 03/26/2008 | EP1902490A1 Lithium battery management system |
| 03/26/2008 | CN201041996Y Bridge crane electromotor controller |
| 03/26/2008 | CN201041945Y Electromotive tool with power indication and charge protection function |
| 03/26/2008 | CN201041938Y A LCD-TV power under-voltage protection circuit |
| 03/26/2008 | CN101150261A Intelligent determination method for channel switch test of power measurement |
| 03/26/2008 | CN101150258A Charger |
| 03/26/2008 | CN101150256A Forward sequence direction quadrangle impedance relay applied for serial supplementary line |
| 03/26/2008 | CN101150255A A control circuit of power supply with capacitance load capability |
| 03/26/2008 | CN101150254A A dual-feedback short circuit protection device |
| 03/26/2008 | CN101150253A Protection device of energy-storage capacitor unit |
| 03/26/2008 | CN101150249A Method for restraining late-class circuit hot swap impact current and its buffering asynchronous start circuit |
| 03/26/2008 | CN100377464C Method of eliminating error action of leakage protector lower and circuit at operating state |
| 03/26/2008 | CN100377463C Fault component transformer longitudinal error protecting element with multiple side zero sequence ratio brake |
| 03/26/2008 | CN100377462C Fault component transformer longitudinal error protecting method with multiple side zero soquence ratio brake |
| 03/26/2008 | CN100377461C Maximum differential flow brake device for preventing voltage transformer differential protection unwanted operation |
| 03/25/2008 | US7348854 Automatic biasing and protection circuit for field effect transistor (FET) devices |
| 03/25/2008 | US7348744 Brushless DC motor drive apparatus |
| 03/25/2008 | US7348734 Method for protecting a ballast from an output ground-fault condition |
| 03/25/2008 | US7348690 Preventing unsafe operation by monitoring switching means |
| 03/25/2008 | US7347167 Method for controlling cooling fans |
| 03/20/2008 | WO2008032644A1 Semiconductor unit for protecting secondary battery, battery pack having the semiconductor unit built-in and electronic apparatus using it |
| 03/20/2008 | WO2006138477A8 High voltage full bridge circuit and method for operating the same |
| 03/20/2008 | US20080068768 Power Supply Device for Enhancing Power Transforming Efficiency |
| 03/20/2008 | US20080067983 Thermal protection of controller for on-vehicle alternators |
| 03/20/2008 | US20080067982 Modulation control of power generation system |
| 03/20/2008 | DE102007036027A1 Störungsbehandlung bei von Umrichtern angetriebenen PM-Motorantrieben Disorder treatment for driven by inverters PM motor drives |
| 03/19/2008 | EP1900071A1 Method and arrangement for triggering a series spark gap |
| 03/19/2008 | EP1899739A1 Method for determining an asynchronous engine temperature and unit for controlling the power supply of an engine therefor |
| 03/19/2008 | EP1358500B1 Tap changer condition diagnosing |
| 03/19/2008 | CN201039058Y Brushless DC motor locking protection loop |
| 03/19/2008 | CN201039053Y Soft starter for dual-speed motor start |
| 03/19/2008 | CN201039001Y A standby circuit for switch power |
| 03/19/2008 | CN201039000Y A standby protection circuit |
| 03/19/2008 | CN201038988Y A single-channel module power device and module power circuit |
| 03/19/2008 | CN201038819Y Efficient solar lamp controller |
| 03/19/2008 | CN201038798Y Integral moving power supply |
| 03/19/2008 | CN201038796Y Voltage regulating device of iron battery output |
| 03/19/2008 | CN201038787Y Automatic polarity-changing constant current charging circuit |
| 03/19/2008 | CN201038753Y Stable state zero-sequence current boosting device |
| 03/19/2008 | CN201038745Y MOS type overtemperature protection circuit |
| 03/19/2008 | CN201038744Y Mobile phone first-aid kit for preventing battery overdischarging |
| 03/19/2008 | CN201038743Y Point machine motor threshold voltage circuit |
| 03/19/2008 | CN201038742Y Rectifier element temperature monitoring and protecting equipment |
| 03/19/2008 | CN201038741Y Power management circuit and TV possessing the management circuit |
| 03/19/2008 | CN201038740Y Three-phase motor protector |
| 03/19/2008 | CN201038739Y Motor overload protecting controller |
| 03/19/2008 | CN201038738Y Electronic motor protection device signal sampling circuit |
| 03/19/2008 | CN201038737Y Low consumption energy motor protector |
| 03/19/2008 | CN201038736Y Motor multifunctional energy-saving intelligent protection and control cabinet |
| 03/19/2008 | CN201038733Y Open-phase protection AC contactor |
| 03/19/2008 | CN201038083Y High reliability electromotor current relay for initiating overload protection |
| 03/19/2008 | CN101147307A 换流器阀 Inverters valve |
| 03/19/2008 | CN101145756A A vertical installation line motor cut-off braking protection device and method |
| 03/19/2008 | CN101145747A Switch magnetic resistance motor power circuit device including smart power module and implementation method |
| 03/19/2008 | CN101145687A Delay time generation circuit, semiconductor device, battery pack, and electronic device |
| 03/19/2008 | CN101145686A Power tool |
| 03/19/2008 | CN101145685A A reversion subversion protector for three-phase crystal thyratron and full control bridge active reverser |
| 03/19/2008 | CN101145684A Three-phase compressor phase reversal and loss protection device and method |
| 03/19/2008 | CA2602930A1 Adaptor, assembly of battery pack and adaptor, and electric tool with the same |
| 03/18/2008 | US7345863 Apparatus and method for identifying a loss of a current transformer signal in a power system |
| 03/18/2008 | US7345859 Method and a control system for starting a motor |
| 03/18/2008 | US7345858 Resistive superconducting fault current limiter |
| 03/18/2008 | US7345857 Power supply with surge voltage control functions |
| 03/18/2008 | US7345856 Method and apparatus for arc suppression in scanned ion beam processing equipment |
| 03/18/2008 | CA2461177C Movable barrier operator |
| 03/13/2008 | WO2008028435A1 Short-circuit current meter |
| 03/13/2008 | WO2008028432A1 Switching device, in particular a compact starter |
| 03/13/2008 | WO2008028431A1 Protective circuit for protection of an appliance, in particular an electric motor, against thermal overloading |
| 03/13/2008 | US20080062730 Method and apparatus for distributing electrical power |
| 03/13/2008 | US20080062592 Aircraft applicable current imbalance detection and circuit interrupter and packaging therof |
| 03/13/2008 | US20080062587 Distributed power supply circuit |
| 03/13/2008 | US20080061997 Power equipment |
| 03/13/2008 | DE102006037118B3 Halbleiterschaltmodul für Bordnetze mit mehreren Halbleiterchips, Verwendung eines solchen Halbleiterschaltmoduls und Verfahren zur Herstellung desselben Of the same semiconductor switching module for vehicle electrical systems with several semiconductor chips, use of such a semiconductor switching module and process for preparing |
| 03/12/2008 | EP1542885B1 Fuse for the electric system of a motor vehicle |
| 03/12/2008 | CN201036108Y AC electromagnetic coil with protective equipment |
| 03/12/2008 | CN101141062A Electric network functional failure travelling wave positioning method |
| 03/12/2008 | CN101141061A Commutation locker cabinet electric arc protecting equipment |
| 03/12/2008 | CN100375362C Cell low-voltage protector |
| 03/12/2008 | CN100375361C Three-phase A.C. dynamo protector |
| 03/12/2008 | CN100375360C Method for controlling surge when transformer switch-on using split-phase switch-on and its circuit |
| 03/11/2008 | US7343516 Method for verifying thermal and power compatibility of components in a computer system |
| 03/11/2008 | US7342811 Lossless clamp circuit for DC-DC converters |
| 03/11/2008 | US7342763 Fuel system safety device for run-dry conditions |
| 03/11/2008 | US7342759 Power supply unit having a mains suppression filter for an electrically operated domestic appliance |
| 03/11/2008 | US7342758 Method and system for detecting stand-alone operation of a distributed generating system |
| 03/11/2008 | US7342757 System and method for quench protection of a superconductor |
| 03/11/2008 | US7342755 High energy capacitor and charging procedures |
| 03/11/2008 | US7342371 System and method for detecting motor run condition |
| 03/06/2008 | WO2008025308A1 Method for producing an error signal that indicates an error in a capacitor arrangement and electric protection device for carrying out said method |
| 03/06/2008 | WO2008025236A1 Cable controller and operation method thereof |
| 03/06/2008 | WO2007090302A3 Establishing switchyard zones of a high or medium voltage switchyard |
| 03/06/2008 | US20080055795 Power supply start-up circuit for a trip unit and circuit interrupter including the same |
| 03/06/2008 | US20080054858 Engine-driven work machine system |
| 03/06/2008 | US20080054856 Buck shot blues specially processed denim product and the process methods to make the product |
| 03/06/2008 | US20080054833 Control device equipped with motor protection function |
| 03/06/2008 | US20080054832 Method of controlling a motor |
| 03/06/2008 | DE102007040134A1 Mit Motorschutzfunktion ausgestattete Steuerungsvorrichtung Equipped with motor protection control device |