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)
02/1998
02/03/1998US5714854 On-car motor driving apparatus and self-diagnosing and selective driving mechanisms for the same
01/1998
01/29/1998WO1998003376A1 Circuit arrangement for controlling a wiper motor
01/29/1998DE19629597A1 Schaltanordnung zur Ansteuerung eines Wischermotors Switching arrangement for actuating a wiper motor
01/28/1998EP0820255A1 Motor controlled surgical system and method having positional control
01/28/1998CN2273465Y Phase-defect and overload protector for electric motor
01/28/1998CN1171714A System of communication output function status indications between two or more power system protective relays
01/28/1998CN1037221C Inverter control method and apparatus
01/27/1998US5712796 Method for evaluating the faulted sections and states in a power transmission line
01/27/1998US5712775 Startup protecting for a switch mode power supply
01/27/1998US5712550 Apparatus for controlling a power control element of a drive unit of a motor vehicle
01/27/1998US5712548 Bi-directional motor actuator
01/22/1998WO1998002948A1 Circuitry for a high-voltage cable installation
01/22/1998WO1998002631A1 Process for limiting the excess force of an electrically controlled aggregate actuated by an external force when it nears its top or bottom stop positions, in particular for a motor vehicle window lifter nearing its closure position
01/22/1998DE19729883A1 Power control system for auxiliary drive unit of electric hybrid-vehicle
01/22/1998DE19629483A1 Monitoring system for electrical machine star-connected stator windings
01/22/1998DE19628238A1 Electrically powered door control method
01/21/1998EP0730721B1 Electronic control arrangement for motor-driven refrigeration compressors
01/21/1998CN2273071Y Reactive compensator for multiplex phase interruption sound and light alarm and automatic power cut-off arrangement
01/21/1998CN1170983A Multiple fault detector for multiway electric appliance winding
01/20/1998US5710471 Hybrid alternator with full output at idle
01/15/1998WO1998001944A1 Method for diagnosing abnormality of circuit member of inverter driving controller for driving and controlling motor
01/15/1998DE19629481A1 Schaltungsanordnung für eine Hochspannungskabelanlage Circuit arrangement for a high voltage cable system
01/14/1998EP0818889A2 Gate voltage limiting for a circuit arrangement
01/14/1998EP0818866A2 Abnormality detecting device for a phase advancing capacitor
01/14/1998EP0818077A1 Hybrid alternator
01/14/1998CN2272630Y Multi-function safety electronic transformer
01/14/1998CN2272625Y Branch circuit breaker
01/14/1998CN1170480A Circuit and process for operating adjusting drive
01/14/1998CN1170479A Circuit for detecting overload in adjusting drive
01/14/1998CN1170280A Protection circuit
01/14/1998CN1170275A Driving circuit for switched reluctance motor
01/14/1998CN1037047C Arrangement for detecting stator earth leakages in three-phase current machines
01/13/1998US5708576 Fault tolerant power converter
01/13/1998US5708351 Battery pack with a lithium ion secondary battery
01/13/1998US5708338 System and method for controlling vehicle sliding door
01/13/1998US5708336 Thermal control system for a motor
01/13/1998US5708335 On-car motor driving apparatus and self-diagnosing and selective driving mechanisms for the same
01/13/1998US5708277 Optically coupled device with high current protection
01/08/1998DE19626528A1 High-power voltage converter e.g. for electric drives on railways
01/07/1998EP0817347A2 Rotary current motor monitoring and corresponding apparatus
01/07/1998EP0817346A1 Protection device against the effects of internal faults in an electrical apparatus
01/07/1998EP0815631A1 Method for monitoring and controlling the opening and closing process of electrically powered units
01/07/1998EP0815610A1 Battery pack having under-voltage and over-voltage protection
01/07/1998EP0740860A4 High speed overvoltage detection and protection circuit
01/07/1998EP0717885B1 Safety device for moving parts
01/07/1998CN2272162Y Computerized motor protection
01/07/1998CN1169799A Electrostatic discharge circuit for high speed, high voltage cricuit
01/07/1998CN1169619A Microprocessor based motor control system with phase difference detection
01/07/1998CN1169553A Battery capacity predicting method, Battery unit and apparatus using battery unit
01/06/1998US5706187 Switching power source circuitry having a current bypass circuit
01/06/1998US5706153 Programmer for starter
01/06/1998US5705914 Overvoltage detecting apparatus for combination battery
01/02/1998DE19628203C1 Verfahren zur Begrenzung der Überschußkraft eines elektrisch gesteuerten, fremdkraftbetätigten Aggregats beim Anfahren seiner Schließposition, insbesondere beim Anfahren der Schließposition eines Fensterhebers eines Kraftfahrzeugs A method of limiting the excess force of an electrically controlled, externally powered unit when starting its closed position, especially when approaching the closed position of a window lifter of a motor vehicle
12/1997
12/31/1997WO1997050162A1 Motor driving apparatus
12/31/1997CN1169049A Capacity judging apparatus of capacitor in power converter outputting three level voltage
12/30/1997US5703459 Driver for an induction motor
12/30/1997US5703451 Motor driving circuit
12/30/1997US5703412 Energy reservoir protection apparatus in vehicle occupant protection system
12/29/1997EP0814395A2 Overcurrent sensing circuit for power mos field effect transistor
12/28/1997CA2208915A1 Support chip for microprocessor based products powered from noisy ac sources
12/24/1997WO1997048868A1 Window opening and closing apparatus
12/24/1997CN1168568A Protecting device for brushless motor
12/23/1997US5701226 Apparatus and method for distributing electrical power
12/23/1997US5701070 Electrical generator damage protection apparatus and method with circuit breaker trip initiation
12/23/1997US5701063 Obstruction-sensing system for a movable member
12/23/1997US5701044 Process and device for monitoring the temperature of an electric generator
12/23/1997CA2028055C Overload protector for telecommunications systems
12/18/1997WO1997048158A1 Device for electronically controlling a motor vehicle displacement mechanism
12/18/1997DE19724952A1 Electrically operated road-vehicle window
12/18/1997DE19623420A1 Vorrichtung zur elektronischen Überwachung eines in einem Fahrzeug angeordneten Verstellantriebs Device for electronically monitoring an adjusting drive arranged in a vehicle
12/17/1997EP0813282A1 Ground fault detection apparatus for a device connected to a power distribution or transmission network, and corresponding method
12/17/1997EP0812487A1 Protective circuit for series-connected power semiconductors
12/17/1997EP0758497B1 Differential current protection for a transformer
12/17/1997CN2271059Y Overcurrent overvoltage self-protective magnetic field internal earthing field effect electronic voltage regulator
12/17/1997CN1168022A Motor start-up circuit
12/16/1997US5699239 Power supply control circuit
12/16/1997US5699222 Apparatus and method for programming and reviewing a plurality of parameters of electrical switching device
12/16/1997US5698957 Over current protective circuit with time delay for a floor cleaning machine
12/16/1997US5698887 Semiconductor protection circuit
12/11/1997WO1997047064A1 Transformer with protection device
12/10/1997EP0812047A2 Programmer for starter
12/10/1997EP0721686B1 Method and device for measuring and recreating the load current in a power network in connection with the occurrence of faults
12/10/1997EP0658289B1 Process and device for driving a multiplicity of loads
12/10/1997CN2270306Y Sectionalizer for distribution line
12/04/1997WO1997045905A1 An installation for power transmission by means of high-voltage direct current, comprising device for detection of a permanent ground fault
12/04/1997WO1997045222A1 Control device for boring machine
12/04/1997WO1997045054A2 Motor controlled surgical system and method having self clearing motor control
12/04/1997CA2251228A1 Motor controlled surgical system and method having self clearing motor control
12/03/1997EP0810721A2 Welding converter device
12/03/1997EP0810714A2 System of communicating output function status indications between two or more power system protective relays
12/03/1997EP0810712A2 Circuit arrangement for controlled injection
12/03/1997EP0810707A2 Earth leakage-current protection system
12/03/1997EP0810444A1 Diagnosys circuit for possible faults during the driving phase of an electric load by a bridge stage
12/03/1997EP0809822A1 Delayed safety braking apparatus for a servomotor control system
12/03/1997CN2269664Y Friction protector for motor rotor and stator
12/03/1997CN2269663Y Short circuit protective device for plant varied transformation or excited transformation
12/02/1997US5694305 Method and apparatus for protection of electronic circuitry
12/02/1997US5694020 Battery powered electrical shaver or hair cutter
12/02/1997US5694018 Apparatus for charging a battery
12/02/1997US5694011 Windshield wiper control with stall protection