| 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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| 12/02/2009 | CN101593965A Intelligent low-voltage motor protector with function of electric energy measurement |
| 12/02/2009 | CN101593936A Digital non-contact electromagnetic control device |
| 12/02/2009 | CN100566111C Less-switch five-power level voltage source type inverter and control method thereof |
| 12/02/2009 | CN100566105C Switch power supply circuit with output short circuit protection function |
| 12/02/2009 | CN100566073C Method and a control system for starting a motor |
| 12/02/2009 | CN100566070C Charging/discharging control circuit and charging type power source unit |
| 12/01/2009 | US7626838 Inverter circuit with switching deadtime synchronized sample and hold current detection |
| 12/01/2009 | US7626798 Electronic load control unit (ELCU) used as bus tie breaker in electrical power distribution systems |
| 12/01/2009 | US7626794 Systems, methods, and apparatus for indicating faults within a power circuit utilizing dynamically modified inrush restraint |
| 12/01/2009 | US7626286 Method for mains-synchronous switching of circuit breakers, and an apparatus for carrying out this method |
| 11/26/2009 | US20090291330 Battery with enhanced safety |
| 11/26/2009 | US20090290991 Controller for a motor and a method of controlling the motor |
| 11/26/2009 | US20090290989 Controller for a motor and a method of controlling the motor |
| 11/26/2009 | US20090290275 Fault Protection System and Method for an Electrical Power Distribution System |
| 11/26/2009 | US20090290270 Overload control of an electric power generation system with unknown availability of mechanical power capacity |
| 11/26/2009 | US20090289656 Dry-type high-voltage load system apparatus and method of preventing chain breaking and arc discharge for use therewith |
| 11/26/2009 | US20090289588 Apparatus and method for driving a motor |
| 11/25/2009 | CN201352777Y Soft starter for electric motor |
| 11/25/2009 | CN201352738Y Wide power supply circuit |
| 11/25/2009 | CN201352710Y Abnormal power-off automatic protecting device of locomotive standard operation monitoring detector |
| 11/25/2009 | CN201352709Y Garage door hardware protection circuit |
| 11/25/2009 | CN201352708Y Safety 9V lithium battery |
| 11/25/2009 | CN201352707Y Energy-saving capacitor contactor accessory |
| 11/25/2009 | CN201352706Y Digital multifunctional motor protector |
| 11/25/2009 | CN101588127A Simplest switch voltage-stabilizing power supply with short circuit overcurrent and overheating protection |
| 11/25/2009 | CN101588124A Wave-chasing current-limiting control method of diode mid-point clamping multilevel converter |
| 11/25/2009 | CN101588061A Thyristor valve triggering and monitoring system for fault current limiter |
| 11/25/2009 | CN101588060A Temperature protection circuit and a method for preventing battery temperature from being overhigh by using the circuit |
| 11/25/2009 | CN101588059A Lightning protection-grounding integrated protection system |
| 11/25/2009 | CN101588058A Protection system for stable operation of numeric household consumer |
| 11/25/2009 | CN101588057A Relay protection device |
| 11/25/2009 | CN101587973A Portable USB card reading universal charger |
| 11/25/2009 | CN101585388A Inertia navigation intelligent vehicle |
| 11/24/2009 | US7623362 Switching power supply unit |
| 11/24/2009 | US7623331 Method and system for improving voltage regulator accuracy in vehicle alternators |
| 11/24/2009 | US7623328 Driving control apparatus for motion mechanism and control method of driving control apparatus |
| 11/24/2009 | US7622885 Linear electric motor controller and system for providing linear control |
| 11/24/2009 | US7622874 Over current detection circuits for motor driver |
| 11/19/2009 | WO2009138461A2 A transformation substation |
| 11/19/2009 | WO2009138424A1 A transformation centre |
| 11/19/2009 | US20090284998 Method and system for providing maximum power point tracking in an energy generating system |
| 11/19/2009 | US20090284877 Integrated Overload and Low Voltage Interrupt Module |
| 11/19/2009 | US20090284203 Method for controlling an opening leaf of a vehicle with an anti-trap function |
| 11/19/2009 | US20090284198 Short circuit phase identification method |
| 11/19/2009 | DE102008001780A1 Verfahren zur Fehlerbehandlung für ein Steuergerät für ein Personenschutzsystem und Steuergerät für ein Personenschutzsystem Method for error handling for a control device for a passenger protection system and control unit for a passenger protection system |
| 11/18/2009 | EP2120307A1 The ecological transformation center |
| 11/18/2009 | EP2120268A2 Electrical circuit for protecting photovoltaic systems |
| 11/18/2009 | EP2118981A2 Calibrating a powered actuator |
| 11/18/2009 | EP2118980A1 Bipolar dc to ac power converter with dc ground fault interrupt |
| 11/18/2009 | CN201349196Y Power tool and control module for same |
| 11/18/2009 | CN201349141Y Safe device for output of electric motor car charger |
| 11/18/2009 | CN201349129Y Power feeder protection device |
| 11/18/2009 | CN201349128Y Section switch protection device |
| 11/18/2009 | CN201349127Y Temperature current protector for ultrathin type secondary battery |
| 11/18/2009 | CN201349126Y Protective circuit board of lead-acid battery pack for electrically driven vehicle |
| 11/18/2009 | CN201349125Y Short-circuit protection circuit for voltage stabilizer |
| 11/18/2009 | CN201349124Y Over-current protection sampling circuit for switching power supply |
| 11/18/2009 | CN201349123Y Generator protection device |
| 11/18/2009 | CN201349122Y Power distribution transformer protection device |
| 11/18/2009 | CN201348732Y Electronic grounding controller |
| 11/18/2009 | CN101582668A Method and device for preventing motor from being blocked based on brake-by-wire system of automobile |
| 11/18/2009 | CN101582632A Switching power supply and electric equipment using switching power supply |
| 11/18/2009 | CN101582585A Composite monitoring device for electrode difference protection and grounding of direct-current system |
| 11/18/2009 | CN101582584A New method preventing AC contactor from being on or off frequently |
| 11/18/2009 | CN101582583A Method for preventing earth current from invading differential protection analog quantity channel to cause false operations |
| 11/18/2009 | CN101582582A Monitoring device of mine power supply system and method thereof |
| 11/18/2009 | CN101582325A Mutual inductor and protecting device |
| 11/18/2009 | CN100562243C Novel secondary cable shielding layer earthing mode |
| 11/18/2009 | CN100561815C Circuit for preventing Impulse current of converter and preventing method thereof |
| 11/18/2009 | CN100561813C Method for restraining late-class circuit hot swap impact current and its buffering asynchronous start circuit |
| 11/18/2009 | CN100561246C Method for automatically determining short circuit between windings of power generator rotor with load |
| 11/17/2009 | US7619909 Control circuit for adjusting leading edge blanking time and power converting system using the same control circuit |
| 11/17/2009 | US7619382 Solar circulation pump and method for controlling a solar circulation pump, for controlling the starting of and for setting the performance of a solar circulation pump |
| 11/13/2009 | CA2665856A1 Voltage source inverter and medium voltage pre-charge circuit therefor |
| 11/12/2009 | US20090279330 Device and Method for Limiting Drain-Source Voltage of Transformer-Coupled Push Pull Power Conversion Circuit |
| 11/12/2009 | US20090279329 Digital latch control circuit for over-voltage protection and power converter using the control circuit |
| 11/12/2009 | US20090279222 Hydraulic valve control circuit and method for checking the function of a hydraulic valve control circuit |
| 11/12/2009 | US20090279221 Electrical circuit for protecting photovoltaic systems |
| 11/12/2009 | US20090279216 Adjustable Rating for a Fault Interrupter and Load Break Switch |
| 11/12/2009 | US20090279215 Protecting device for multi-motors and method thereof |
| 11/12/2009 | DE102009020559A1 Kurzschlusssicherung für eine Elektrofahrzeugbatterie Short circuit protection for electric vehicle battery |
| 11/12/2009 | DE102008028980A1 System sowie Verfahren zur Diagnose des technischen Betriebszustandes eines Leistungsschalters System and method for diagnosing the technical operating state of a circuit breaker |
| 11/12/2009 | DE102008022744A1 Schaltungsanordnung und System zum Einsatz in einem Kraftfahrzeug A circuit arrangement and system for use in a motor vehicle |
| 11/12/2009 | DE102008021350A1 Protection device for protecting electrical machine i.e. engine, against current overloading, has utilization device for generating control signal by utilizing comparison result in machine model computation |
| 11/11/2009 | EP2115846A1 Over-voltage protection circuit |
| 11/11/2009 | CN201345611Y Ultra-low voltage running device for separate wall-hanging rated air-conditioner |
| 11/11/2009 | CN201345575Y Dedicated fly wheel accumulator for special electric bus |
| 11/11/2009 | CN201345572Y Flameproof and intrinsically safe variable frequency motor |
| 11/11/2009 | CN201345554Y Direct-current control system of integrated diesel generating set of relay |
| 11/11/2009 | CN201345551Y Parallel control system of integrated diesel generating set of relay |
| 11/11/2009 | CN201345542Y Transformer neutral point earthing protection device |
| 11/11/2009 | CN201345541Y Low current grounding intelligent line-selection device |
| 11/11/2009 | CN201345540Y Protection device for rechargeable battery pack |
| 11/11/2009 | CN201345539Y Serial connection IGBT pressure-equalizing protection and control circuit |
| 11/11/2009 | CN201345538Y Motor protection device |
| 11/11/2009 | CN201345537Y Controller of charging hydraulic tool |
| 11/11/2009 | CN201345536Y Transformer neutral point capacitance-resistance mixed type inhibition direct current device |
| 11/11/2009 | CN201345534Y Switch power supply cycle-by-cycle overvoltage protective circuit |
| 11/11/2009 | CN201344141Y Fully-automatic control device for water pump |
| 11/11/2009 | CN101578747A 功率滤波器 Power Filter |