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)
12/2005
12/29/2005WO2005124964A1 Battery pack protecting circuit and battery pack
12/29/2005WO2005124961A1 Method for error handling in a converter circuit for wiring of three voltage levels
12/29/2005WO2005124960A1 Method and device for detecting a blockage of a dc motor
12/29/2005WO2005124807A1 Voltage judgment method, voltage judgment part, power cut-off method, and power cut-off device
12/29/2005US20050286184 Electrical power outlet strip
12/29/2005US20050286182 Safety switch
12/29/2005US20050286181 Power supply apparatus capable of detecting abnormality in current flowing in drive circuit
12/29/2005US20050286180 System and method for quench protection of a superconductor
12/29/2005US20050286179 Method and apparatus for determining actual reactive capability curves
12/29/2005US20050285574 Method and apparatus for providing economic analysis of power generation and distribution
12/29/2005US20050285553 System and method for adapting to barrier nuisances and obstructions
12/29/2005DE112004000192T5 Hartmaske mit hoher Selektivität für IR-Sperrschichten zur Herstellung eines ferroelektrischen Kondensators Hard mask with a high selectivity for IR-blocking layers for the production of a ferroelectric capacitor
12/29/2005DE102005025999A1 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
12/29/2005DE102005014131A1 Motorantrieb Motor drive
12/29/2005DE102004027936A1 Using digital protection relay in electrical network of rock coal mining industry involves blocking short-circuit triggering before switching on next motor if protection function detects machine-dependent current limit being exceeded
12/28/2005EP1609660A1 Power supply apparatus capable of detecting abnormality in current flowing in drive circuit
12/28/2005CN2749158Y Non-contact open-phase protector for three-phase AC motor
12/28/2005CN2749157Y Open-phase over-current protector for motor
12/28/2005CN1713475A Overload protecting circuit of transformer
12/28/2005CN1713474A Overload protecting circuit of transformer
12/28/2005CN1712268A Power supply apparatus capable of detecting abnormality in current flowing in drive circuit
12/25/2005CA2510839A1 Method and apparatus for providing economic analysis of power generation and distribution
12/24/2005CA2508353A1 System and method for adapting to barrier nuisances and obstructions
12/22/2005WO2005122354A1 Isolated measurement circuit for sensor resistance
12/22/2005US20050280970 Current protection apparatus and method
12/22/2005US20050280968 Circuit arrangement for limitation of over-voltages in energy storage modules
12/22/2005US20050280965 Relay-to relay direct communication system and method in an electric power system
12/22/2005US20050280963 Restoring electrical load to distribution feeder circuits
12/22/2005US20050280400 Vehicle-mounted electrical generating system in which field current of electric generator supplying power to high-voltage system is derived from supply voltage of low-voltage system
12/22/2005DE19539753B4 Kraftfahrzeugtürverschluß mit Zentralverriegelungseinrichtung Motor vehicle door lock with central locking system
12/22/2005DE102004025923A1 Photovoltaikanlage zur Einspeisung in ein elektrisches Netz sowie zentrales Steuer- und Überwachungsgerät für eine Photovoltaikanlage Photovoltaic plant to feed into an electrical network and central control and monitoring unit for a photovoltaic system
12/22/2005CA2565288A1 Isolated measurement circuit for sensor resistance
12/22/2005CA2510562A1 Electrical power outlet strip
12/21/2005EP1608057A1 Protection circuit for reducing electrical disturbances when operating a DC motor
12/21/2005EP1607756A2 Malfunction detecting apparatus for on-vehicle charging system
12/21/2005EP1607562A1 Control device of opening and closing member
12/21/2005EP1606486A2 Control and monitoring arrangements for an aperture closure member
12/21/2005EP1606144A1 Power fold mirror control circuit and method
12/21/2005CN1711673A Power converter
12/21/2005CN1710814A Apparatus and method for monitoring input voltage
12/21/2005CN1710769A Garment vehicle idle power-off electricity-saving device
12/21/2005CN1232996C Synchronous open-circuit method for breaker of power generator and its control equipment
12/21/2005CA2510207A1 Circuit arrangement for limitation of over-voltages in energy storage modules
12/15/2005WO2005119873A2 Protection circuits for hybrid power systems
12/15/2005WO2005119872A1 Circuit for effective quench heating in superconducting magnets
12/15/2005WO2005119871A1 Directionnal and differential ground fault protective relay system for ungrounded dc traction power feed system and ground fault protective relay apparatus for detecting ground fault current
12/15/2005WO2005119393A1 A hybrid ac / dc system for electric power
12/15/2005WO2005119277A1 A method of monitoring line faults in a medium voltage network
12/15/2005WO2005093934A8 Method for operating a supply unit for a driver circuit, and supply unit for a driver circuit
12/15/2005WO2005079447A3 Switching power supply controller with built-in supply switching
12/15/2005US20050276081 Protection circuits for a DC-to-DC converter
12/15/2005US20050275983 Protection circuits for hybrid power systems
12/15/2005US20050275979 Power signaling based technique for detecting islanding conditions in electric power distribution systems
12/15/2005US20050275977 Multi-level power supply system for a complementary metal oxide semiconductor circuit
12/15/2005US20050275365 Acoustic noise reduction using fan speed control
12/15/2005US20050275363 Control device of opening and closing member
12/15/2005US20050275358 Protective circuit for reducing electrical disturbances during operation of a DC motor
12/15/2005US20050274893 Apparatus and method for determining the proportion of a substance in a gas sample using an infrared measuring instrument
12/15/2005DE19930402B4 Stromversorgungseinrichtung mit einem Akkumulator zur Speisung eines elektrischen Antriebs eines Lastträgers für Personen Power supply means including an accumulator for supplying an electrical drive of a load carrier for individuals
12/15/2005DE102005022569A1 System zur Erzeugung elektrischer Leistung für Fahrzeuge A system for generating electric power for vehicles
12/15/2005DE102004037071B3 Stromsparbetrieb bei Hörhilfegeräten Power Saving Mode in hearing aids
12/14/2005EP1604441A1 Protection system against an electric motor overload
12/14/2005CN1707897A Electric power cut off device for closed compressor
12/13/2005US6975523 Power supply capable of protecting electric device circuit
12/13/2005US6975522 Device and method for inhibiting power fluctuation
12/13/2005US6975490 Apparatus and method for detecting phase state
12/08/2005WO2005117229A1 Electronic element adapted to an electric circuit arrangement
12/08/2005WO2005117136A2 Photovoltaic installation for feeding an electric grid, and central control and monitoring device for a photovoltaic installation
12/08/2005WO2005091874A3 Apparatus and method for the production of power frequency alternating current directly from the output of a single-pole type generator
12/08/2005US20050273207 Distributed protection system for power distribution systems
12/08/2005US20050270709 Nuisance trip reducing motor control system and method
12/08/2005US20050270708 Combination-type motor control with extended current range
12/08/2005US20050270707 Extended trip range motor control system and method
12/08/2005US20050269880 Vehicle-mounted electrical generator control system enabling suppression of supply voltage spikes that result from disconnecting electrical loads
12/08/2005DE102004023502A1 Energy storage method for hybrid motor vehicle lowering voltage level of the energy storage if allowable temperature to be expected with voltage level is exceeded
12/07/2005EP1602166A1 Transferring electric power to a power consumer
12/07/2005EP1602115A2 Method and system for sensing switch position to prevent inadvertent startup of a motor
12/07/2005EP1046044B1 Motor winding contamination detector and detection
12/07/2005EP0873583B1 Digital current differential system
12/07/2005CN1230989C Integrated transmitting/receiving radio frequency device
12/07/2005CN1230973C Safety speed monitoring system for three-phase AC transmission without sensor
12/07/2005CN1230961C Method and apparatus for electrically controlling and regulating movement of electrically operated aggregate of motor vehicle
12/06/2005US6972972 Power inverter with optical isolation
12/06/2005CA2214608C Apparatus and method for adjustment and coordination of circuit breaker trip curves through graphical manipulation
12/01/2005US20050264972 Relay control device for a direct current electrical apparatus
12/01/2005US20050264971 Semiconductor integrated circuit apparatus having overheat protection circuit and overheat protection method
12/01/2005US20050264961 Generator
12/01/2005US20050264266 Generator
12/01/2005US20050264265 Generator apparatus
12/01/2005US20050264254 Switched reluctance motor control with partially disabled operation capability
12/01/2005US20050264217 Controller for power protection
12/01/2005DE19758128B4 Motor-Steuerungsbaugruppe und Verfahren zu deren Steuerung Engine control module and method for its control
12/01/2005DE102004037783B3 Safety switching system for digital outputs of logic building blocks and microcontrollers has diodes to prevent reverse flow of current through transistors when output voltage exceeds input voltage
12/01/2005DE102004028360B3 Vorrichtung und Verfahren zur Bestimmung des Anteils einer Substanz in einer Gasprobe mit einem Infrarot-Messgerät Apparatus and method for determining the content of a substance in a gas sample with an infrared instrument
12/01/2005DE102004022005A1 Vorrichtung zum Schutz vor thermischer Überlastung Device for protection against thermal overload
12/01/2005DE102004018966A1 Reihenschlussmotor und Verfahren zum Steuern eines solchen Series-wound motor and method for controlling such a
12/01/2005CA2507130A1 Controller for power protection
11/2005
11/30/2005EP1601104A1 Overcurrent detecting apparatus
11/30/2005EP1012960B1 Three-phase motor
11/30/2005CN1703814A Secondary battery with protective circuit