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