| 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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| 11/26/2008 | CN101313445A Temperature compensation charging control device for electronic equipment |
| 11/26/2008 | CN101312301A Charging apparatus and method for lithium ion battery pile |
| 11/26/2008 | CN100438323C Resistor for controlling fan motor rotational speed in air conditioning device |
| 11/26/2008 | CN100438319C System and method for individual phase motor over voltage protection |
| 11/26/2008 | CN100438313C Failure detecting device for a load driving system |
| 11/26/2008 | CN100438254C Thunderstroke protection circuit capable of avoiding being reliably protecting electric net power supply thander struck by directly |
| 11/26/2008 | CN100438251C A large electric system vulnerable line identifying method |
| 11/26/2008 | CN100438250C Electronic component power-off protection circuit |
| 11/26/2008 | CN100438249C Selective generator stator single phase grounding protective method |
| 11/25/2008 | US7457136 Overcurrent protective device for switching element |
| 11/25/2008 | US7457088 Systems and methods for protection of electrical networks |
| 11/25/2008 | US7456695 Apparatus, method and computer program product for tracking information in an electric grid |
| 11/25/2008 | US7456601 System and method for starting a wound rotor motor |
| 11/25/2008 | US7455055 Method of operation of, and protector for, high voltage power supply for electrostatic precipitator |
| 11/25/2008 | CA2468630C Movable barrier operator multi-technique excess force avoidance apparatus and method |
| 11/20/2008 | WO2008140061A1 Power supply unit |
| 11/20/2008 | WO2008021440A3 Buck converter fault detection method |
| 11/20/2008 | WO2007137259A3 Systems and methods for maximizing the output of vehicle alternator |
| 11/20/2008 | US20080285316 Ac/dc converter and ac/dc conversion method using the same |
| 11/20/2008 | US20080285193 Power supply apparatus |
| 11/20/2008 | US20080285185 Semiconductor integrated circuit |
| 11/20/2008 | US20080284548 Method for Sectioning With a Section Switch a Medium-Voltage Electric Power Distribution Line Exhibiting a Disturbance, Section Switch for Medium-Voltage Electric Power Distribution Line Applicable Thereon and Electronic Circuit for Detecting a Fault Current and Comprised by Said Section Switch |
| 11/20/2008 | US20080284362 Adjusting Device and Control Device of a Vehicle |
| 11/19/2008 | EP1138108B1 Device for energizing a voltage-source converter |
| 11/19/2008 | CN201153212Y Circuit closing apparatus having regional interlock |
| 11/19/2008 | CN201153211Y Phase loss protection unit for intelligent electric actuating mechanism |
| 11/19/2008 | CN201153210Y Protection circuit for out port of electricity generator |
| 11/19/2008 | CN101309014A Lithium battery charger controlled integrated circuit and polar switching switch control circuit |
| 11/19/2008 | CN101309007A Charging protection circuit for battery |
| 11/19/2008 | CN101309003A Synthetic apparatus of anti-flashover and protection for low-voltage three phase asynchronous motor |
| 11/19/2008 | CN101308921A Power supply apparatus |
| 11/19/2008 | CN100435446C Overvoltage protection device with initiation electrode under vacuum environment |
| 11/19/2008 | CN100435445C Automatic electrode |
| 11/19/2008 | CN100435444C Overvoltage protection circuit, and power source, power supply system and electronic apparatus |
| 11/18/2008 | US7453710 Transformerless safety isolation in a power supply using safety capacitors for galvanic isolation |
| 11/18/2008 | US7453679 Apparatus and method for driving inverter circuit |
| 11/18/2008 | US7453677 Power and safety control hub |
| 11/18/2008 | US7453674 Method for protecting an electric generator |
| 11/14/2008 | CA2630186A1 Arc detector |
| 11/13/2008 | WO2008137276A1 Variable speed drive |
| 11/13/2008 | WO2008136071A1 Phase control switch and switching pole control method in phase control switch |
| 11/13/2008 | WO2008135479A1 Method for the selective triggering of power breakers |
| 11/13/2008 | WO2008134998A1 Method for determining an adjustment value indicating a ground impedance and measurement device |
| 11/13/2008 | WO2008134995A1 Method and device for capturing a fault in an electrical supply grid |
| 11/13/2008 | WO2008117306A3 Distribution transformer monitoring system |
| 11/13/2008 | US20080278870 Over current detection circuits for motor driver |
| 11/13/2008 | US20080278869 Electric Machine Control System |
| 11/13/2008 | US20080277945 Protection techniques for a back-up electric power system |
| 11/13/2008 | DE102008022469A1 Schutzvorrichtung für eine Sekundärbatterie und integriertes Halbleiterschaltungsbauteil A protective device for a secondary battery and semiconductor integrated circuit device |
| 11/13/2008 | DE102008009963A1 Motortreiber und Ventil-Zeitsteuer-Controller Motor driver and valve timing controller |
| 11/13/2008 | DE102007021491A1 Motoranordnung mit elektronischem Trennrelais-Modul Motor assembly with electronic isolating relay module |
| 11/12/2008 | EP1990884A1 Power supply apparatus and control method therefor |
| 11/12/2008 | EP1990883A1 Method and device for protecting an electric switching device against thermal overload |
| 11/12/2008 | EP1989773A1 Battery low-voltage cutoff circuit |
| 11/12/2008 | CN201150009Y Circuit of full-automatic accumulator jar charging machine |
| 11/12/2008 | CN201150007Y Mobile power supply |
| 11/12/2008 | CN201149993Y Protection fault information processing apparatus based on switch quantitative deflection |
| 11/12/2008 | CN201149992Y Neutral line-cutting protector |
| 11/12/2008 | CN201149991Y Load protective circuit |
| 11/12/2008 | CN201149990Y Intelligent protecting monitor for electric motor |
| 11/12/2008 | CN201149811Y Combined current and voltage transformer for microcomputer |
| 11/12/2008 | CN101304228A Armoured flame-proof type switch transformer type flexible starting equipment |
| 11/12/2008 | CN101304227A Armoured flame-proof type switch transformer type flexible starting equipment |
| 11/12/2008 | CN101304226A Armoured flame-proof type flexible starting equipment |
| 11/12/2008 | CN101304217A Switch power supply for chain type convertor power unit controller |
| 11/12/2008 | CN101304211A Switch power supply device |
| 11/12/2008 | CN100433489C Overpower protector of self-excitation power supply |
| 11/12/2008 | CN100433488C Phase-sequence synthetic brake method for preventing multi-branch transformer differentical protection malfunction |
| 11/12/2008 | CN100433487C Phase-splitting integrated brake device for preventing multiple-branch voltage transformer differential protection unwanted operation |
| 11/12/2008 | CN100433486C Transformer differential protection difference stream and differential protection instantaneous TA abnormal state identification protecting method |
| 11/12/2008 | CN100433485C Active switch mode rotor grounding fault protection method |
| 11/12/2008 | CN100433484C Dry hollow reactor early warning protector |
| 11/12/2008 | CN100433483C Main circuit reverse-joint protection circuit of motor-driving control system for electric automobile |
| 11/12/2008 | CN100433482C Safe battery case for hybrid motor automobile |
| 11/12/2008 | CN100433206C Transformer monitoring system |
| 11/11/2008 | US7450360 Multi-mode regulator |
| 11/11/2008 | US7450357 Electrostatic discharge protection circuit and semiconductor structure for electrostatic discharge |
| 11/11/2008 | US7450356 Rotation speed controller for fans |
| 11/11/2008 | US7450355 Power supply apparatus with function of detecting abnormality of current sensor |
| 11/11/2008 | US7450354 Linear voltage regulator with improved responses to source transients |
| 11/11/2008 | US7449959 Methods and apparatus to detect impedance at an amplifier output |
| 11/11/2008 | US7449855 Window lifter, controlling device for a window lifter and method for the control of a window lifter |
| 11/06/2008 | WO2008133543A1 Zero sequence current generator |
| 11/06/2008 | WO2008132449A1 Electric power steering |
| 11/06/2008 | US20080272727 Method for Determination of the Risk to Disturbance-Free Operation of a Frequency Converter |
| 11/06/2008 | US20080272726 Control Apparatus and Method for Controlling an Adjusting Device in a Motor Vehicle |
| 11/06/2008 | DE102007021270A1 Verfahren zum selektiven Auslösen von Leistungsschaltern Method for selective circuit breaker tripping |
| 11/06/2008 | DE102007020509A1 Fehlerbehandlung bei einer elektrischen Maschine eines Hybridantriebes Error handling for an electrical machine of a hybrid drive |
| 11/06/2008 | DE102004034028B4 Einrichtung zur Speicherung von elektrischer Energie Means for storing electric energy |
| 11/05/2008 | EP1987576A1 Seat control electronic system and method for a motor-driven motor vehicle adjusting device |
| 11/05/2008 | EP1987575A1 Jamming protection and method for controlling a motor-driven adjusting apparatus for an adjustring apparatus |
| 11/05/2008 | EP1987574A1 Jamming protection and method for controlling a motor-driven adjusting apparatus |
| 11/05/2008 | EP1987573A1 Method for limiting the excess force of a closing part which is actuated by an external force |
| 11/05/2008 | EP0948123B1 Protecting method for inrush current preventing resistor |
| 11/05/2008 | CN201146402Y Constant-current safety charger |
| 11/05/2008 | CN201146399Y Inverter for automobile |
| 11/05/2008 | CN201146380Y Protective equipment for decompression, phase-off and self-switchover |
| 11/05/2008 | CN201146379Y Accumulator over discharging protector |
| 11/05/2008 | CN201146378Y Protective circuit for charging battery |
| 11/05/2008 | CN201146377Y Single key cascade control switch unit of multi-string lithium battery protection system |