| 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) |
|---|
| 04/08/2009 | CN201219207Y Automatic power-off energy-saving apparatus of charger |
| 04/08/2009 | CN201219198Y Switch-on/off loop protection device of breaker |
| 04/08/2009 | CN201218984Y Digital protection moving die detection system based on electronic mutual inductor |
| 04/08/2009 | CN201217754Y Overcurrent protection mechanism for electric clothing-airing hanger |
| 04/08/2009 | CN101405922A Transverse flux machine, and rotary engine comprising such a transverse flux machine |
| 04/08/2009 | CN101405669A Universal monitoring and diagnostic control system for a transformer or tap-changer |
| 04/08/2009 | CN101404409A Cut-off ground fault recognition method for electrified railroad AT power supply contact system |
| 04/08/2009 | CN101404408A Distribution network cable-wire mixed line failure route selection method by utilizing relative energy |
| 04/08/2009 | CN101404407A Negative sequence direction pilot protection method for electric power transmission line in open-phase operation mode |
| 04/08/2009 | CN101404406A Lithium battery protection circuit |
| 04/08/2009 | CN101403901A Intelligent oil pumping machine control cabinet |
| 04/08/2009 | CN101403391A Novel duplicate-power double-fan intelligent monitoring protection device |
| 04/08/2009 | CN100477440C Equal-transmission instantaneous value differential protection method of microcomputer protection for remote transmission line |
| 04/08/2009 | CN100477439C Switch power supply with overvoltage protection and overvoltage protection method thereof |
| 04/08/2009 | CN100477436C Phase fault, low-voltage and over voltage breaking protection circuit |
| 04/08/2009 | CN100477035C Solid electrolytic capacitor |
| 04/08/2009 | CN100476674C Regulator protection circuit and power supply device comprising same |
| 04/08/2009 | CN100476643C Method for initializing a power-activated adjusting device and device for implementing said initialization method |
| 04/08/2009 | CN100475577C Apparatus for correcting driving power of vehicle actuator and method thereof |
| 04/07/2009 | US7515442 Secondary side controller and method therefor |
| 04/07/2009 | US7514891 Method and arrangement for monitoring a power output stage |
| 04/02/2009 | WO2009042650A1 Improved battery disconnect device |
| 04/02/2009 | WO2009041969A1 Low-voltage battery protection methods and apparatus |
| 04/02/2009 | WO2009039936A1 Adjustment device |
| 04/02/2009 | US20090088294 Thermal protection of an electric drive system |
| 04/02/2009 | US20090086517 Dc/dc boost converter with resistorless current sensing |
| 04/02/2009 | US20090086396 Current fault detector and circuit interrupter and packaging thereof |
| 04/02/2009 | US20090085547 Switching Power Supply Unit |
| 04/02/2009 | US20090085519 Protection circuit for battery pack, battery pack including the protection circuit, and method of operating the battery pack |
| 04/02/2009 | US20090085518 Protective circuit board and battery pack using the same |
| 04/02/2009 | US20090085446 Switching device, generator-motor apparatus using switching device, drive system including generator-motor apparatus, and computer-readable recording medium on which a program for directing computer to perform control of generator-motor apparatus is recorded |
| 04/02/2009 | DE202007016545U1 Akkumulatorschaltung für ein Ladegerät oder einen Verbraucher Accumulator for a charger or a consumer |
| 04/02/2009 | DE202005021671U1 Schaltungsanordnung zum Ausschalten einer Crowbar Circuitry for switching off a Crowbar |
| 04/02/2009 | DE102007046617A1 Electric motor monitoring method, involves disconnecting one of two brake pads or component of electric motor upon reaching threshold temperature and in case of insufficient or complete absence of ventilations of brake pads |
| 04/02/2009 | DE102007043872A1 Speed controllable drive arrangement for machine tool structure, has temperature sensors providing temperature signals to multiplexer that provides signals to frequency converter over pins of signal plug connectors provided for temperature |
| 04/01/2009 | EP2043217A2 Power distribution current limiting switch including a current limit blanking period providing a burst of current |
| 04/01/2009 | EP2042743A1 A gas compression system, a method for controlling a gas compression system, and a device for controlling a recycle valve |
| 04/01/2009 | CN201215891Y Error halt preventing circuit for electricity generator |
| 04/01/2009 | CN201215890Y Anti-burning automatic protection device for low-voltage distribution transformer |
| 04/01/2009 | CN201215889Y Synthetic protection device for microcomputer |
| 04/01/2009 | CN201215817Y Protective circuit for lithium battery |
| 04/01/2009 | CN201215813Y Battery kit for mounting non-reverseable battery |
| 04/01/2009 | CN101401272A Electronic tripping unit for a motor-circuit breaker of an electric motorelectronic tripping unit for a motor-circuit breaker of an electric motor |
| 04/01/2009 | CN101401271A Electro-mechanical actuator system, for instance for adjustable furniture |
| 04/01/2009 | CN101399492A Control circuit having protection circuit for power supply apparatus |
| 04/01/2009 | CN101399491A Overcurrent protection circuit for photovoltaic DC-to-AC converter |
| 04/01/2009 | CN101399443A Electric grid breaking point request method for enhancing protection fixed value integration performance of electric grid |
| 04/01/2009 | CN101399442A Two-stage protection method for lithium ionic battery pack and circuit thereof |
| 04/01/2009 | CN101399441A Protection circuit for battery pack, battery pack including the protection circuit, and method of operating the battery pack |
| 04/01/2009 | CN101399440A Protection circuit and method for multiple batteries |
| 04/01/2009 | CN101399439A Battery protection method and apparatus used for electronic product |
| 04/01/2009 | CN101399438A Apparatus capable of recognizing zero phase line and switching polarity |
| 04/01/2009 | CN101399437A Safety circuit and battery pack using the same |
| 04/01/2009 | CN101399435A Automotive overcurrent protection |
| 04/01/2009 | CN101399382A Battery construction and charging device used for the construction |
| 04/01/2009 | CN100474752C Semiconductor device for controlling switch power supply |
| 04/01/2009 | CN100474737C Power supply system with improved supply quality |
| 04/01/2009 | CN100474728C Microcomputer protection for electric power system |
| 03/31/2009 | US7511976 Self powered supply for power converter switch driver |
| 03/31/2009 | US7511459 Controller computing a virtual tuning capacitor for controlling a free-piston stirling engine driving a linear alternator |
| 03/26/2009 | WO2009036517A1 Overcurrent protection in a dimmer circuit |
| 03/26/2009 | US20090080132 Antenna diodes with electrical overstress (eos) protection |
| 03/26/2009 | US20090079435 Load Drive Circuit |
| 03/26/2009 | US20090079399 Overload control of an electric power generation system |
| 03/26/2009 | US20090079377 Semiconductor integrated circuit device |
| 03/26/2009 | US20090079373 Motor controller and electric power steering system |
| 03/26/2009 | US20090079191 Electric power generation with magnetically geared machine |
| 03/26/2009 | DE202006020625U1 Kurzschlusseinrichtung zur Löschung eines Störlichtbogens innerhalb einer Mittel- und Hochspannungsschaltanlage Short-circuit device for deletion of an internal arc within a medium and high voltage switchgear |
| 03/26/2009 | DE102008045968A1 Stromversorgungs-Steuergerät A power supply control device |
| 03/26/2009 | DE102006026465B4 Filter für ein elektrisches Betriebsmittel, insbesondere für ein Schaltnetzteil, eine Stromversorgung oder einen Frequenzumrichter Filter for an electrical device, especially for a switching power supply, a power supply or inverter |
| 03/25/2009 | EP2040349A2 Adjustable speed drive protection |
| 03/25/2009 | EP2001096A9 Controller |
| 03/25/2009 | CN201213231Y Portable mobile power source |
| 03/25/2009 | CN201213224Y Over-current protecting equipment for voltage mutual inductor |
| 03/25/2009 | CN201213223Y Overcurrent protector for voltage mutual inductor |
| 03/25/2009 | CN201213222Y Rear stage working circuit protecting device for dual path electric power supplying system |
| 03/25/2009 | CN101394136A Industrial frequency phase shift apparatus |
| 03/25/2009 | CN101394129A Switching control circuit and self-excited DC-DC converter |
| 03/25/2009 | CN101394094A Full automatic high efficient voltage step-up step-down circuit |
| 03/25/2009 | CN101394080A Battery pack protection circuit |
| 03/25/2009 | CN101394079A Novel frequency conversion power source protecting device |
| 03/25/2009 | CN101394078A Automatic switching device for power source electric potential |
| 03/25/2009 | CN101394077A Digital protective relay system |
| 03/25/2009 | CN101394076A Digital protective relay system |
| 03/25/2009 | CN101393249A Combination overvoltage protector test equipment |
| 03/25/2009 | CN101393245A Synthesis monitoring instrument for transformer |
| 03/25/2009 | CN100472932C Temperature monitoring method and device of parallel-connected inverter modules |
| 03/25/2009 | CN100472910C Transformer Differential protection method based on voltage drop off and time lag principle |
| 03/24/2009 | US7508640 Method for fault handling in a converter circuit for wiring of three voltage levels |
| 03/24/2009 | US7508636 Hybrid circuit breaker device |
| 03/24/2009 | US7508185 Simple zero current switch circuit |
| 03/24/2009 | US7508150 Electric motor controller |
| 03/24/2009 | US7508091 Vehicle battery protection device |
| 03/19/2009 | WO2009034934A1 Charge/discharge protection circuit, battery pack including charge/discharge protection circuit, and electronic device thereof |
| 03/19/2009 | WO2009000989A3 Method for controlling a rotary electric machine in case of load shedding and corresponding power control module |
| 03/19/2009 | US20090073729 Protection Circuit for Protecting a Half-Bridge Circuit |
| 03/19/2009 | US20090073728 Power converter and method, and triangle wave generating circuit |
| 03/19/2009 | US20090073624 High Voltage Interlock System and Control Strategy |
| 03/19/2009 | US20090073617 Multi-phase ac motor driving device |
| 03/19/2009 | US20090072982 Health monitoring for power converter capacitors |