| 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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| 02/26/2009 | US20090052096 Power Supply Controller |
| 02/26/2009 | US20090051309 Process for driving an electric machine and driver system therefor |
| 02/26/2009 | US20090051307 Excessive temperature detecting system of electric motor controller |
| 02/26/2009 | DE102007039212A1 Electromechanical system i.e. electromechanical steering system, blockage identifying method for motor vehicle, involves identifying blockage of system by control unit when sensor does not detect position change of mechanical component |
| 02/26/2009 | DE102007036680A1 Circuit device for operating e.g. water pump, in motor vehicle, has detection device causing stabilization circuit and diagnostic connection to be high-resistant to positive supply voltage during contact interruption of ground line |
| 02/26/2009 | DE102007036667A1 Einrichtung und Verfahren zum Betreiben eines elektrischen Verbrauchers Means and method for operating an electrical load |
| 02/25/2009 | EP2028741A2 Hybrid-type superconducting fault current limiter |
| 02/25/2009 | EP1969693A4 Protective circuits for secondary battery packs |
| 02/25/2009 | CN201199665Y Intelligent full-automatic brushless DC motor |
| 02/25/2009 | CN201199633Y Neutral point great current earthing DC insulation control cabinet |
| 02/25/2009 | CN201199632Y Parallel capacitor apparatus with dual over-voltage protection |
| 02/25/2009 | CN201199631Y Double-bridge difference power capacitor apparatus |
| 02/25/2009 | CN201199534Y Lithium ion battery package and cascade, parallel connection application circuit thereof |
| 02/25/2009 | CN201198281Y Controller for electric vehicle |
| 02/25/2009 | CN101375479A Semiconductor unit for protecting secondary battery, battery pack having the semiconductor unit built-in and electronic apparatus using it |
| 02/25/2009 | CN101373912A Brushless molded motor |
| 02/25/2009 | CN101373893A Over temperature protection circuit for battery |
| 02/25/2009 | CN101373892A Running phase-lacking protector circuit for motor |
| 02/25/2009 | CN101373891A Mainboard using 32-bit DSP as kernel for microcomputer protection device |
| 02/25/2009 | CN101373821A Power unit and safety circuit having the same |
| 02/25/2009 | CN100464479C Power network system and method for resolving power network large area power cut |
| 02/25/2009 | CN100464477C Output overvoltage detection protecting method for power supply system |
| 02/25/2009 | CN100464475C Single-phase adaptive reswitch-on comprehensive criterion realizing method for transmission line |
| 02/24/2009 | US7495416 Battery pack, battery protection processing apparatus, and startup control method of the battery protection processing apparatus |
| 02/19/2009 | WO2009006067A3 Programmable power limitation for power transistor system |
| 02/19/2009 | US20090046399 Superconducting coil quench detection method and device, and superconducting power storage unit |
| 02/19/2009 | US20090045763 Method and Arrangement For Monitoring Signals |
| 02/19/2009 | DE202007018606U1 Kurzschlussbegrenzungsvorrichtung in einer Niederspannungsanlage Short-circuit limiting device in a low voltage system |
| 02/18/2009 | EP2026083A2 Active shield superconducting electromagnet apparatus for MRI with improved quench protection |
| 02/18/2009 | CN201197128Y Industrial drawer type soft starter |
| 02/18/2009 | CN201197076Y Relay power supply overload apparatus |
| 02/18/2009 | CN201197075Y Circuit for implementing cascading lithium batteries protection by using single-unit lithium battery protection IC |
| 02/18/2009 | CN201197074Y Early warning type oil well electric motor real-time control protection manager |
| 02/18/2009 | CN201197073Y Ground flashover detection circuit for magnetic controlled shunt reactor exciting winding casing tube |
| 02/18/2009 | CN201197071Y Vehicle electric appliance protection control device based on digital signal processing |
| 02/18/2009 | CN101371431A Process for switching off an electrical machine in the event of a malfunction |
| 02/18/2009 | CN101371415A Wireless system for one or more electrical switching apparatus |
| 02/18/2009 | CN101369780A Unit bypass apparatus and control method of unit cascading high voltage frequency convertor |
| 02/18/2009 | CN101369738A Output circuit of parallel connection power supply |
| 02/18/2009 | CN101369727A Route selection method aiming at electric arc ground fault |
| 02/18/2009 | CN101369726A Method for fast recognition of back-to-back direct current system ground fault by utilization of voltage auxiliary criterion |
| 02/18/2009 | CN101369725A Filtering microcomputer protection apparatus with fundamental current component as criterion |
| 02/18/2009 | CN101369723A Protection system for reconfigurable static reactive-power compensation/DC de-icing composite apparatus |
| 02/18/2009 | CN100463327C High voltage circuit phase selection method based on pallern identification |
| 02/18/2009 | CN100463326C Concave, convex shaped or biconcave groove electrode overvoltage protection device under vacuum environment |
| 02/18/2009 | CN100463325C Short-circuit protection circuit with self-recovering function |
| 02/18/2009 | CN100463324C Failure component extracting algorithm based on failure type |
| 02/18/2009 | CN100463321C Circuit for preventing chip from misoperation |
| 02/17/2009 | US7492618 Inverter device |
| 02/17/2009 | US7492614 Switching power supply apparatus |
| 02/17/2009 | US7492556 Quench protection circuit for a superconducting magnet |
| 02/17/2009 | US7492162 Inverter system |
| 02/12/2009 | WO2009019096A2 A method for managing a fault event in a network for distributing electrical energy, and a corresponding electronic protection unit. |
| 02/12/2009 | WO2008138699A3 Circuit arrangement comprising at least two capacitors that are connected in series |
| 02/12/2009 | US20090040798 Switching mode power supply apparatus and power supply method thereof |
| 02/12/2009 | US20090040796 Bipolar transistor drivers |
| 02/12/2009 | US20090040673 Group protection module for a switchgear arrangement and switchgear arrangement having such a group protection module |
| 02/12/2009 | US20090040664 Active shield superconducting electromagnet apparatus and magnetic resonance imaging system |
| 02/12/2009 | US20090039849 Ultra low dropout voltage regulator |
| 02/12/2009 | US20090039814 Trapping Prevention Guard and Method for Controlling a Motor-Driven Adjusting Device |
| 02/12/2009 | US20090039812 Motor drive device |
| 02/12/2009 | DE102007037356A1 Contact device for high-voltage cable of motor vehicle, has control device controlling de-energized switching device of contact device via operator line, where control device exhibits bridge element arrangeable or arranged in housing |
| 02/11/2009 | EP2022153A2 Power supply system and method |
| 02/11/2009 | EP2021270A1 Circuit device for a braked motor |
| 02/11/2009 | EP2021206A1 Reliable drive cut off device |
| 02/11/2009 | CN201194380Y Armored flame-proof type switch transformer type flexible starting equipment |
| 02/11/2009 | CN201194379Y Armored flame-proof type flexible starting equipment |
| 02/11/2009 | CN201194374Y DC three level converter |
| 02/11/2009 | CN201194371Y High-resistance medium-frequency three-phase rectifier transformer |
| 02/11/2009 | CN201194330Y Insulation monitoring simulation apparatus for transforming plant DC system |
| 02/11/2009 | CN201194329Y Adaptive determination apparatus differentiating transformer exciting surge and failure current |
| 02/11/2009 | CN201194328Y Over-heat protection apparatus for voltage regulating transformer |
| 02/11/2009 | CN201194079Y Full-power management system for ship power plant |
| 02/11/2009 | CN101366163A Superconducting magnetic coil with a quench protection circuit, and mrt apparatus embodying same |
| 02/11/2009 | CN101364778A Non-contact control circuit for bidirectional water spraying pump |
| 02/11/2009 | CN101364730A Input voltage protection circuit |
| 02/11/2009 | CN101364729A Mems based battery monitoring technical field |
| 02/11/2009 | CN101364728A Hermetic compressor |
| 02/11/2009 | CN101364136A Ultra low dropout voltage regulator |
| 02/11/2009 | CN100461575C Fault line selecting method for distribution system single phase earthing |
| 02/11/2009 | CN100461574C Power-supply rectifying system at direct current side with protection device |
| 02/11/2009 | CN100461573C Middle/low voltage bus short circuit protection method |
| 02/11/2009 | CN100461572C Floating threshold and current ratio brake combined turn-to-turn protection method for electric generator |
| 02/11/2009 | CN100460840C Method and protective circuit for monitoring temperature of electromotor cooled by refrigerant |
| 02/10/2009 | US7489531 Inverter with improved overcurrent protection circuit, and power supply and electronic ballast therefor |
| 02/10/2009 | US7489527 DC transformer with an output inductance integrated on a magnetic core thereof and a DC/DC converter employing the same |
| 02/10/2009 | US7489485 Method and equipment for the protection of power systems against geomagnetically induced currents |
| 02/10/2009 | US7489484 Protective device for a controlling system of a sewage pump |
| 02/10/2009 | US7489483 System and method for look ahead detection of electrical problems at a motor of a vehicle |
| 02/10/2009 | US7489199 Saturation detector and warning circuit including clamp |
| 02/10/2009 | US7489114 Hybrid vehicle drive unit |
| 02/10/2009 | US7489051 Adaptive power system with improved efficiency and distribution space reduction |
| 02/05/2009 | WO2009016789A1 Independent power supply system |
| 02/05/2009 | US20090034302 Dc-dc converter with current overload protection circuit and method |
| 02/05/2009 | US20090033357 Winding fault detection system |
| 02/05/2009 | US20090033268 Power supply system with function of short circuit detection |
| 02/05/2009 | DE102007036618A1 Schaltungsanordnung zum Schutz von elektronischen Bauteilen oder Baugruppen Circuit arrangement for protecting electronic components or assemblies |
| 02/05/2009 | DE102007032605A1 Fotovoltaikanlage Photovoltaic system |
| 02/05/2009 | DE102007008191B4 Verfahren und Datenverarbeitungssystem zur Ermittlung der Anregebedingungen eines ortsfernen Reserveschutzsystems für Mittel- und Hochspannungsleitungen Procedures and data processing system for determining the excitation conditions of a location remote backup protection system for medium and high voltage cables |
| 02/04/2009 | EP2020722A2 Device and method for operating an electricity meter |