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)
07/2007
07/26/2007US20070170881 Phase change materials, phase change random access memories having the same and methods of operating phase change random access memories
07/26/2007DE102006003254A1 Verfahren zum Abschalten einer elektrischen Maschine im Falle einer Störung Method of shutting down an electric machine in case of failure
07/26/2007DE102006002245A1 Verfahren zur Überwachung eines abschaltbaren Kabels in einem elektrischen Netz, dafür geeignete Überwachungsvorrichtung sowie Überwachungssystem Method for monitoring a turn-off cord into an electrical network, for appropriate monitoring device and monitoring system
07/25/2007EP1811645A1 Power supply circuit protecting method and apparatus for the same
07/25/2007EP1811248A1 Freezing apparatus
07/25/2007EP1810887A2 Vehicle control unit and vehicle control method
07/25/2007EP1810353A2 Fault current limiting system
07/25/2007CN2927443Y Protecting control system against islet for parallel network inverse generator
07/25/2007CN101005265A Intelligent powersaving device for AC motor
07/25/2007CN101005239A Resonant switching power source apparatus
07/25/2007CN101005237A Current sense amplifier for voltage converter
07/25/2007CN101005235A Overheat protecting circuit of power supply unit and direct current power supply unit
07/25/2007CN101005215A Power supply unit and method of using the same
07/25/2007CN101005214A Electric grid system and method for resolving electric grid large area power cut
07/25/2007CN101005207A Output voltage state indicator for power source chip
07/25/2007CN101005206A Safety circuit for permanent magnet synchronous generator actuated by weak field
07/25/2007CN101005205A Motor monitor system
07/25/2007CN101005204A System and method of operating double fed induction generators
07/24/2007US7248486 Energy efficient switching converter
07/24/2007US7248152 Automatic on/off switch for vehicle power outlets
07/24/2007US7248027 Power converters in which the input power coupling times are adjusted in conjunction with cycle skip counts
07/24/2007US7248011 Drive for automatic operating of a vehicle door
07/19/2007WO2007081789A2 Miniature electric power generator system and method for controlling a miniature electric power generator
07/19/2007US20070165429 Reverse current protection for power converters having synchronous rectifiers
07/19/2007US20070165347 Dc/dc converter and decentralized power generation system comprising a dc/dc converter
07/19/2007US20070165341 Overvoltage-protective automotive power generation control circuit
07/19/2007US20070165340 Method and a tool for calculating and displaying fault response tolerances for a power switching device
07/19/2007US20070164713 Battery charging control device
07/19/2007US20070164712 Regulator for eliminating noises generated by automotive power generator
07/19/2007US20070164709 Battery pack protection circuit and battery pack
07/19/2007DE102006015712A1 AC/DC-Power Line Communication-Modem AC / DC Power Line Communication Modem
07/19/2007DE102006001007A1 Überlastschutz für einen Elektro-Bootsmotor Overload protection for an electric boat motor
07/18/2007CN2924919Y Low-voltage latched control circuit with bi-level for improving power supply device protection
07/18/2007CN2924880Y Three-phase motor protector
07/18/2007CN2924878Y Energy-saving power-stealing-proof distribution device
07/18/2007CN1326656C Electromagnetic switch and welder using the same
07/18/2007CN101001011A All-line phase-interruption protection switch
07/17/2007US7245514 Synchronous rectification circuit
07/17/2007US7245511 Resistor dropper power supply with surge protection
07/17/2007US7245510 Method and apparatus for conditional response to a fault condition in a switching power supply
07/17/2007US7245508 Power conversion apparatus
07/17/2007US7245470 Unsafe voltage shutoff control
07/17/2007US7245469 DC backup power supply device and method for diagnosing the same
07/17/2007US7245111 Regulator system for alternator
07/17/2007US7245110 System for using polarized device with an AC induction motor
07/17/2007US7245031 Generator with integrated powerswitch
07/12/2007WO2007077369A1 Method for controlling an opening leaf of a vehicle with an anti-trap function
07/12/2007US20070162189 Method and Apparatus for Determining Actual Reactive Capability Curves
07/12/2007US20070159737 Method for operating a wind turbine during a disturbance in the grid
07/12/2007US20070159736 Led-based lamp apparatus
07/12/2007US20070159180 Arrangement for testing a power output stage
07/12/2007US20070159139 Method and apparatus for generator control
07/12/2007US20070157910 Method and system for controlling power to be fed to electrical loads
07/12/2007DE202007003348U1 Elektrisches Antriebssystem, besonders für verstellbare Möbel The electrical drive system, especially for adjustable furniture
07/12/2007DE202006001746U1 Vorrichtung zur Detektion eines Einklemmfalles An apparatus for detecting a pinching
07/12/2007DE102006058971A1 Verfahren zum Überprüfen einer Steuereinrichtung eines Elektromotors sowie Prüfeinrichtung A method of verifying a control device of an electric motor and test equipment
07/12/2007DE102005063069A1 Air purification device for use with e.g. carbon filter, has high voltage production device electrically connected in parallel to input of fan motor, where number of revolutions of fan motor is adjustable using changeable input voltage
07/11/2007EP1806817A1 Oil-immersed electrical equipment with a short-circuiting safety device
07/11/2007CN2922241Y Vehicle lithium ion storage cell equalizing protecting circuit
07/11/2007CN2922235Y Power lithium ion cell protecting circuit
07/11/2007CN2922234Y Over-discharge protecting circuit for power lithium ion cell
07/11/2007CN2922233Y Over-charging protecting circuit for power lithium ion cell
07/11/2007CN1996743A Brushless DC motor control device and control method therefor
07/11/2007CN1996733A Control system for serial operation of the quick crystal brake tube
07/11/2007CN1996697A Relay protection method of the line single phase grounding failure affected by the distribution-resisting capacitance and current
07/11/2007CN1996696A Control circuit for intelligent breaker loop protection
07/11/2007CN1996695A Multifunctional circuit of the control and protection switch appliance
07/11/2007CN1996694A Design method of the measurement software for the protection direction of the PC relay protection device
07/11/2007CN1996693A Fault control circuit and method therefor
07/11/2007CN1996692A Protection method of the dual-power field and its circuit
07/11/2007CN1996421A Continuous positioning monitoring device for double-power supply moving device
07/11/2007CN1326161C Surge voltage protector for use in power transmission networks
07/10/2007US7242571 Dielectric ceramic, manufacturing method therefor, and multilayer ceramic capacitor
07/10/2007US7242562 Fan protection method and apparatus
07/10/2007US7242244 Method and arrangement for testing a power output stage
07/10/2007US7242172 Microprocessor die with integrated voltage regulation control circuit
07/10/2007US7242166 Electric machine
07/10/2007US7242110 Control system for canceling load unbalance of three-phase circuit
07/05/2007WO2007075710A2 Active rectification of alternator output without using a position sensor
07/05/2007WO2007073979A1 Superconductive magnet coil having a circuit for quenching protection and an mrt device therewith
07/05/2007WO2006031810A3 Power control methods and apparatus for variable loads
07/05/2007US20070153556 Inverter device
07/05/2007US20070153435 Motor overcurrent protection device
07/05/2007US20070153433 Motor temperature control using estimated motor temperature based on motor power dissipation
07/05/2007US20070152641 Voltage generator device, motor vehicle, control method for the voltage generator device, control method for the motor vehicle, and computer-readable recording medium storing program for causing computer to execute the control method
07/05/2007DE202006002525U1 Einklemmschutz einer motorisch angetriebenen Verstellvorrichtung für eine Verstellvorrichtung Pinch protection of a motor-driven adjusting device for adjusting a
07/05/2007DE19813888B4 Motorschutzeinrichtung Motor protection equipment
07/05/2007DE10149578B4 Vorrichtung und Verfahren zur Überwachung einer Verstellvorrichtung eines Kraftfahrzeuges, insbesondere eines Fensterhebers Apparatus and method for monitoring an adjusting device of a motor vehicle, in particular a window lifter
07/04/2007EP1804359A2 Motor control apparatus and motor control method
07/04/2007EP1803505A1 process to control the power unit of a cleaning machine and cleaning machine
07/04/2007EP1803202A1 Method and apparatus for preventing overheating in an electronically commutated motor assembly
07/04/2007CN2919640Y Neutrality point grounding protecting device
07/04/2007CN2919639Y Integrated controller for electric motor
07/04/2007CN2919638Y Phase-lack over-current protector
07/04/2007CN2919635Y Branch line protecting type branch cable
07/04/2007CN2919602Y USB wire with function of charging protection
07/04/2007CN1992572A Method and apparatus for multiplexing from low-speed light port to 2M transmission line and protection switching
07/04/2007CN1992491A Device for powering electric or electronic devices operatively associated with a circuit breaker
07/04/2007CN1324779C Rotation speed monitoring method for protecting AC motor and outputting torsion control
07/03/2007US7239496 Distance protective relay using a programmable thermal model for thermal protection