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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11/30/2005 | CN1702955A Generator |
11/30/2005 | CN1702954A Generator |
11/30/2005 | CN1702790A Relay control device for a direct current electrical apparatus |
11/30/2005 | CN1229903C Electric power system protecting and controlling system and arranging method |
11/29/2005 | US6970807 Diagnostic system and method for electric leak detecting device |
11/24/2005 | WO2005112248A1 Apparatus and method for ride through for ac induction motors |
11/24/2005 | WO2005112221A2 Cordless power tool with tool identification circuitry |
11/24/2005 | WO2005112217A1 Excess current detecting circuit and power supply device provided with it |
11/24/2005 | WO2005111747A1 Circuit arrangement and method for electrically controlling and/or regulating the movement of an electrically driven unit |
11/24/2005 | US20050259452 High voltage power supply |
11/24/2005 | US20050259370 Inverter device for automobile |
11/24/2005 | US20050259368 Method and apparatus of terminating a high voltage solid state device |
11/24/2005 | US20050258808 Controller in a voltage mode buck converter for implementing a mode-switch function and an over-current protection by a multifunction pin and method thereof |
11/24/2005 | US20050258807 Electric power generating system for vehicle |
11/24/2005 | US20050258805 Devices and methods for protection of rechargeable elements |
11/24/2005 | US20050258024 Switchgear assembly for distribution of electrical power |
11/24/2005 | DE202004015511U1 Self operated switch with electronic overload function for an electrical unit especially a motor starter uses values of operating current and permitted overload time |
11/24/2005 | DE102005006093A1 Retrofit kit for equipping motor vehicle window lifter driven by electric motor with controller has controller configured to automatically control electric motor, especially to brake displacement movement of electric motor |
11/23/2005 | EP1598929A1 Inverter device including a ground fault detection circuit |
11/23/2005 | CN2742650Y Motor protector |
11/23/2005 | CN2742649Y Manned diving device emergency moving controller with three freedom |
11/23/2005 | CN1700597A Switch voltage stabilizer |
11/23/2005 | CN1700577A Inverter device for automobile |
11/23/2005 | CN1700552A Overpower protector of self-excitation power supply |
11/23/2005 | CN1700551A Overcurrent protector |
11/23/2005 | CN1700550A Method for suppressing power transformer excitation surge current and suppressor |
11/23/2005 | CN1700549A Open-circuit protector for security unit |
11/23/2005 | CN1228899C Protection and control system for main circuit component of transformer station |
11/22/2005 | US6967451 Back door opening and closing apparatus |
11/22/2005 | CA2244541C Safety method and apparatus for resistive start of electromotors |
11/17/2005 | WO2005109592A1 Device for protection against thermal overload |
11/17/2005 | WO2005109591A2 Method for triggering an electric machine, and triggering system therefor |
11/17/2005 | WO2005109589A1 Overcurrent detecting circuit and power supply device provided with it |
11/17/2005 | WO2005107560A1 Central vacuum cleaning system with an improved motor control circuit |
11/17/2005 | WO2005107554A1 Central vacuum cleaning system control subsystems |
11/17/2005 | US20050254186 Combination current sensor and relay |
11/17/2005 | US20050254185 Central vacuum cleaning system control subsystems |
11/17/2005 | US20050254184 Current mode step-down switching regulator |
11/17/2005 | US20050254183 Power generation circuit using electromagnetic wave |
11/17/2005 | US20050253642 One way conductor |
11/17/2005 | DE102004025176A1 Phase failure recognition circuit for a converter compares potential at a resistance star point relative to that of a positive or negative intermediate circuit voltage |
11/17/2005 | CA2786726A1 Central vacuum cleaning system control subsystems |
11/16/2005 | EP1596492A1 Motor control method and motor controller |
11/16/2005 | CN2741264Y DC/DC controller with surge current protection |
11/16/2005 | CN2741251Y Over hot alarming device of bus joint |
11/16/2005 | CN2741250Y Motor protector |
11/16/2005 | CN2741249Y Controllable current following de-excitation circuit of generator |
11/16/2005 | CN1698258A Temperature monitoring of parallel-connected inverter modules |
11/16/2005 | CN1697977A Dry-type high-voltage load system device and method for preventing chain disconnection/arc discharge of the device |
11/16/2005 | CN1697789A Dielectric ceramic, process for producing the same and laminate ceramic capacitor |
11/16/2005 | CN1697285A Power generation circuit using electromagnetic wave |
11/16/2005 | CN1696866A Portable terminal and USB device |
11/16/2005 | CN1227121C Vehicle electrical system with battery and security disconnection |
11/15/2005 | US6965507 Multilayer capacitor |
11/15/2005 | CA2245455C Converter circuit arrangement |
11/10/2005 | WO2005107034A1 A fault detection and control apparatus for a switch ofa compensation capacitor |
11/10/2005 | US20050251296 Method and apparatus for control of an electric power distribution system in response to circuit abnormalities |
11/10/2005 | US20050248966 Portable terminal and USB device |
11/10/2005 | US20050248889 Chain reaction control circuit for parallel power supply |
11/10/2005 | US20050248320 Switch reduction in a cordless power tool |
11/10/2005 | US20050248318 Cordless power tool with a protected weak link element |
11/10/2005 | US20050248309 Cordless power tool with tool identification circuitry |
11/10/2005 | US20050248308 Apparatus and method for ride through for AC induction motors |
11/10/2005 | US20050248303 Power tool with remote stop |
11/10/2005 | US20050248226 Magnetic bearing |
11/10/2005 | DE202004009920U1 Control for a motor vehicle has a digital signal processor, which transforms a signal from a time domain representation to frequency domain representation |
11/10/2005 | DE102004019003A1 Brushless fan motor operating method, involves directly or indirectly regulating number of revolutions of motor by governor, and evaluating output signal of governor if signal reaches preset threshold that is longer than regulation period |
11/09/2005 | EP1594211A2 Electromagnetic bearing with two power sources having distinct voltage; Demagnetising permanent magnets upon failure in an electrical machine |
11/09/2005 | EP1594209A1 Reducing the number of power switches in a cordless power tool |
11/09/2005 | EP0903459B1 Window opening and closing apparatus |
11/09/2005 | CN2739857Y High power brushless motor protective device |
11/09/2005 | CN2739856Y Intelligent circuit breaker for petrol generating set |
11/09/2005 | CN1694823A Electric motor circuit with overload protection |
11/09/2005 | CN1694330A Cordless power tool with tool identification circuitry |
11/08/2005 | US6963793 Distribution network monitoring and control system |
11/08/2005 | US6963183 Control circuit for a direct current motor |
11/03/2005 | US20050243582 DC transformer with an output inductance integrated on a magnetic core thereof and a DC/DC converter employing the same |
11/03/2005 | US20050243494 Highly efficient line transient protection circuit for high power loads |
11/03/2005 | US20050243485 Leakage current detection interrupter with open neutral detection |
11/03/2005 | US20050243482 Brushless DC fan motor driving circuit |
11/03/2005 | US20050243481 Primary side turn-off of self-driven synchronous rectifiers |
11/03/2005 | US20050242784 Malfunction detecting apparatus for on-vehicle charging system |
11/03/2005 | US20050242780 Battery protection device, battery protection system using the same, and battery protection method |
11/03/2005 | US20050242779 Battery protection circuit |
11/03/2005 | DE202005009734U1 Protective circuit for e.g. DC motor, has two electric circuit branches connected in series by thermo switch, and third electric circuit branch connected in parallel to one branch, where multiplier is arranged in one branch |
11/03/2005 | DE202004020653U1 Electrical power quality field device exchanges secure data with external unit using removable memory device |
11/03/2005 | DE202004009922U1 Steuerungsvorrichtung zur Steuerung einer Verstelleinrichtung eines Kraftfahrzeugs Control device for controlling an adjuster on a motor vehicle |
11/03/2005 | DE19705925B4 Steuervorrichtung zum Betreiben eines Wischermotors Control device for operating a wiper motor |
11/02/2005 | CN2738446Y Multifunction oil submersible electric machine protector |
11/02/2005 | CN1691398A Battery protection device and system, and battery protection method |
11/01/2005 | US6960897 Apparatus and method for protecting starter for engine against overheating |
11/01/2005 | CA2253512C Ground fault protection circuit for a multiple source system |
10/27/2005 | WO2005101606A1 Series motor and method for controlling the same |
10/27/2005 | US20050237693 Method of operation of, and protector for, high voltage power supply for electrostatic precipitator |
10/27/2005 | US20050237678 Configuration and method for protecting converter means |
10/27/2005 | DE202005008809U1 Electrical disturbance reducing circuit for DC motor, has auxiliary voltage source making series transistor fully conductive, and analyzer circuit analyzing supply voltage to increase resistance of transistor |
10/27/2005 | DE202004020586U1 Brushless fan motor operating method, involves directly or indirectly regulating number of revolutions of motor by governor, and evaluating output signal of governor if signal reaches preset threshold that is longer than regulation period |
10/27/2005 | DE102004013925A1 Verfahren und Vorrichtung zum Schutz einer von einer Steuereinrichtung gesteuerten Schaltvorrichtung Method and apparatus for the protection of a controlled switching device by a control device |
10/26/2005 | EP1588465A2 Electrostatic discharge circuit and method therefor |
10/26/2005 | CA2504917A1 Leakage current detection interrupter with open neutral detection |