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)
09/2006
09/20/2006CN1276527C Battery with protective circuit
09/20/2006CN1276451C Combination block of motor protector for compressor
09/19/2006US7111195 Method and system for external clock to obtain multiple synchronized redundant computers
09/19/2006US7110272 Inverter bridge controller implementing short-circuit protection scheme
09/19/2006US7110271 Inrush current prevention circuit for DC-DC converter
09/19/2006US7110231 Adaptive protection system for a power-distribution network
09/19/2006US7110226 Regulator protection circuit and power supply apparatus incorporating it
09/19/2006US7109877 Fault monitoring apparatus and method
09/19/2006US7109687 Three-phase ac generator for vehicle
09/19/2006US7109676 Control for electric motor in vehicles
09/19/2006US7109438 Power supply apparatus for arc-utilizing apparatus
09/14/2006US20060203528 Apparatus for power conversion in electric rolling stock
09/14/2006US20060203410 Secondary battery protection device
09/14/2006US20060203402 Fireguard circuit
09/14/2006US20060203400 Current regulator having a transistor and a measuring resistor
09/14/2006US20060203399 Overload protection arrangement for electronic converters, for instance for halogen lamps
09/14/2006US20060202001 Enhanced heat system for bga/cga rework
09/14/2006US20060201264 Transformer monitoring system
09/14/2006DE102005009789A1 Electrical component e.g. heater device, overload protection arrangement for e.g. airplane, has protection device bypassing overload current in case of short circuit so that current via component to be protected is not above maximum limit
09/14/2006DE10101099B4 Verfahren zum Überwachen des Trockenlaufs einer Förderpumpe und nach dem Verfahren arbeitende Förderpumpe Method for monitoring the dry run of a feed pump and operating according to the process pump
09/13/2006EP1701594A1 Overload protection arrangement for electronic converters, for instance for halogen lamps
09/13/2006EP1700326A1 Cryogenic current limiting fuse
09/13/2006EP1699287A1 Sprayer thermal protection
09/13/2006CN2817169Y Over power protection device for self exciting power supply device
09/13/2006CN2817160Y Spark suppresser
09/13/2006CN2817139Y Contactless transformer air-cooling control device
09/13/2006CN2816829Y Small current earthing route selection device
09/13/2006CN1832287A Automatic start function module of motor and control method thereof
09/13/2006CN1832286A Undervoltage warning method, undervoltage warning circuit and switching power supply
09/13/2006CN1831704A Hard disk hot Atach & Detach power supply protection circuit of computer device
09/13/2006CN1275370C Motor open-phase protection circuit
09/12/2006US7107162 Determining an operational limit of a power transmission line
09/12/2006US7106605 DC converter circuit with overshoot protection
09/12/2006US7106573 Protection circuit for a digital subscriber line device
09/12/2006US7106565 Directional ground relay system
09/12/2006US7106030 Field excitation for an alternator
09/12/2006US7106029 Vehicle generator and vehicle generating system
09/12/2006US7106028 Controller of A.C. generator for vehicles
09/12/2006US7106017 Motor control device
09/12/2006US7105953 Power sharing system and method for battery operated controller and application modules
09/12/2006US7105949 Emergent power supply system and method of achieving input current balance in such system
09/09/2006CA2538210A1 Overload protection arrangement for electronic converters, for instance for halogen lamps
09/08/2006WO2006093926A1 An apparatus and method for detecting the loss of a current transformer connection coupling a current differential relay to an element of a power system
09/08/2006WO2006093600A2 Trench capacitor power supply system and method
09/08/2006WO2006092715A1 Malfunction determining device for drive circuit and drive unit including the same, and method for determining malfunction in drive circuit
09/07/2006US20060198073 Method and an apparatus for supervising the operation of current transformers
09/07/2006US20060198065 Apparatus and method for detecting the loss of a current transformer connection coupling a current differential relay to an element of a power system
09/07/2006US20060197637 Superconducting magnet system
09/07/2006US20060197511 Transformer with protection against direct current magnetization caused by zero sequence current
09/07/2006US20060197483 Power tool with remote stop
09/07/2006US20060196265 System and method for proactive motor wellness diagnosis
09/07/2006DE202005006760U1 Light consists of connection for voltage supply channel and second connection for signal channel and has security against overloading and may have apparatus to locate first and second channels
09/07/2006DE102005029949A1 Protection device for overvoltage attacks against a vending machine, has an overvoltage protection device that is connected to machine operating and control electronics and which isolates them if a critical overvoltage is detected
09/06/2006EP1698032A1 Method for the operation of a converter circuit of a washing machine or a tumble dryer
09/06/2006EP1481456A4 A protection device
09/06/2006CN2814760Y Comprehensive automatic protector utilizing digital inputting
09/06/2006CN2814759Y Silicon control state sampling device
09/06/2006CN2814758Y Three-phase asynchronous motor open-phase in stantaneous overload delay protector
09/06/2006CN2814757Y Device Net field bus intelligent motor protection observing and controlling apparatus
09/06/2006CN2814430Y Small current grounding select switch with arc suppression coil
09/06/2006CN1830091A H-bridge with single lead frame
09/06/2006CN1829035A Building electric fire hidden trouble alarm power distribution method and its circuit
09/06/2006CN1829032A Electronic component power-off protection circuit
09/06/2006CN1829031A Short-circuit protection circuit with self-recovering function
09/06/2006CN1829030A Quick-break protection device and method with power direction in motor protection measuring and controlling device
09/06/2006CN1829029A Motor protector
09/06/2006CN1829028A Passive zero breaking automatic de-excitation device and method
09/06/2006CN1829027A Protective circuit for intrinsically safe electromagnetic actuators, and protective circuit for intrinsically safe energy supply systems
09/06/2006CN1828789A Superconducting magnet system
09/05/2006US7102898 Isolated drive circuitry used in switch-mode power converters
09/05/2006US7102866 Power line protection
09/05/2006US7102861 Cryogenic current limiting fuse
09/05/2006US7102332 Control apparatus for automotive generator
09/05/2006US7102313 Apparatus and method for providing protection to electric traction motor of vehicle
08/2006
08/31/2006WO2006089904A1 Submarine direct current network
08/31/2006US20060195874 Transmission/reception integrated radio-frequency apparatus
08/31/2006US20060193155 DC converter
08/31/2006US20060193099 Systems and methods for performing a redundancy check using intelligent electronic devices in an electric power system
08/31/2006US20060193091 Power semiconductor apparatus provided with power controlling semiconductor modules connected in parallel to each other
08/31/2006US20060193090 Synchronous motor startup lock detection circuit and method
08/31/2006US20060192535 Fixed frequency electrical generation system with induction coupler and use thereof in an aircraft
08/31/2006US20060192534 Generating apparatus and motor control apparatus
08/31/2006US20060192533 Method and apparatus for calculating/controlling power generation torque
08/31/2006US20060191500 Method for controlling cooling fans
08/30/2006EP1696531A2 A method and an apparatus for supervising the operation of current transformers of a protection relay
08/30/2006CN2812375Y 瞬态过电压控制器 Transient overvoltage controller
08/30/2006CN2812094Y Power supply management circuit for PCMCIA card
08/30/2006CN1825730A Phase-loss detection for rotating field machine
08/30/2006CN1272897C Switching power supply device
08/29/2006US7099461 System and method for the powering and fault protection of remote telecommunications equipment
08/29/2006US7099169 DC to AC inverter with single-switch bipolar boost circuit
08/29/2006US7099168 DC-AC converter and controller IC therefor
08/29/2006US7099134 Apparatus for protecting boost converter in abnormal operation
08/29/2006US7099128 Fault condition protection
08/29/2006US7099127 High-side short-circuit protection for a voltage converter
08/29/2006US7098632 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
08/29/2006US7098629 Generator apparatus
08/29/2006US7098628 Generation control system
08/29/2006CA2267693C System and related methods for detecting and measuring the operational parameters of a garage door
08/24/2006WO2006088848A1 Device and method of sensing temperature of a rotating electromagnetic machine