| 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) |
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| 09/28/1999 | US5959437 Charge and discharge control circuit |
| 09/28/1999 | US5959436 Charge and discharge control circuit having low voltage detecting means for preventing charging of an abnormal cell |
| 09/28/1999 | US5959428 Starting control unit for a refrigeration machine |
| 09/23/1999 | WO1999048183A1 Electric motor unit, in particular for motor vehicle, incorporating a control electronics |
| 09/22/1999 | CN2340115Y Electrified-wire-netting isolation fault switch device |
| 09/22/1999 | CN2340114Y Fully-automatic safety fire-retardant protector for power supply |
| 09/22/1999 | CN1045234C Charge control apparatus and electronic apparatus provided with the control apparatus |
| 09/21/1999 | US5956240 Quick-reset circuit for auxiliary power supply |
| 09/21/1999 | US5956220 Adaptive distance protection system |
| 09/21/1999 | US5955859 Interface module between a field bus and electrical equipment controlling and protecting an electric motor |
| 09/15/1999 | EP0746896B1 Hybrid alternator with voltage regulator |
| 09/15/1999 | CN2338901Y Phase interruption protection device for three phase asynchronous motor |
| 09/15/1999 | CN2338900Y Multi-functional energy-saving and protection device for electric motor |
| 09/15/1999 | CN1045142C Device for detecting fault of dc-to-ac converter system |
| 09/14/1999 | US5953192 Solid state control device for an anti-pump circuit |
| 09/14/1999 | US5953086 Liquid crystal display device with protection circuit for electrostatic break down |
| 09/14/1999 | US5952801 For controlling activation of a motor |
| 09/09/1999 | DE19809628A1 Operating drive for automobile electric window, sliding sunroof or adjustable seat |
| 09/08/1999 | EP0940901A2 Control system, method of protectively controlling electric power system and storage medium storing program code |
| 09/08/1999 | EP0940852A2 Electrostatic discharge protection for integrated circuit semiconductor device |
| 09/08/1999 | EP0939903A1 Device and method for analysing faults on networks |
| 09/07/1999 | US5949668 Power amplifier with multiple switched output stages, and method and driver for operating same |
| 09/07/1999 | US5949633 Fluorescent lamp drive system with transformer over-voltage protection circuit |
| 09/07/1999 | US5949343 Supervisory apparatus for oil-filled electrical equipment |
| 09/07/1999 | US5949273 Short circuit protection for parallel connected devices |
| 09/07/1999 | US5949235 System and method for detection and control of ungrounded parts in a production coating line |
| 09/07/1999 | US5949233 Circuit for detecting overcharging and overdischarging |
| 09/07/1999 | US5949218 Methods and apparatus for managing the charging and discharging of a lithium battery |
| 09/07/1999 | US5949207 For an automobile window |
| 09/07/1999 | CA2170539C Accident detection circuit of a voltage-type self-excited power converter |
| 09/02/1999 | WO1999044255A1 Electrostatic enhanced lithium battery circuit |
| 09/02/1999 | DE19907928A1 Controller for battery driven electric motor in vehicle, e.g. used to drive hydraulically powered lift gate |
| 09/01/1999 | EP0939473A2 Motor controller based on pwm system |
| 09/01/1999 | EP0938813A1 Quick-reset circuit for auxiliary power supply |
| 09/01/1999 | EP0938772A1 Fault control circuit for switched power supply |
| 09/01/1999 | EP0938766A1 Control system using an electric motor |
| 09/01/1999 | CN2336506Y Control device for charger |
| 09/01/1999 | CN2336502Y Isolating failure switch unit for distribution network |
| 09/01/1999 | CN2336501Y High-tension current-limiting fuse for protection of transformer |
| 09/01/1999 | CN2336500Y Insulation four-branch combined overvoltage protector |
| 09/01/1999 | CN2336498Y Non-contact break protection AC contactor |
| 08/31/1999 | US5946178 Protective circuit for series-connected power semiconductors |
| 08/31/1999 | US5946172 Installation for power transmission by means of high-voltage direct current, comprising device for detection of a permanent ground fault |
| 08/31/1999 | US5946171 Method and device for prevention against explosion and fire of electrical transformers |
| 08/31/1999 | US5945810 Battery protective circuit |
| 08/31/1999 | US5945809 Battery pack short-circuit protection circuit and method |
| 08/31/1999 | US5945796 For controlling ascending/descending drive of an opening/closing body |
| 08/31/1999 | US5944635 Safety shutdown and latch off |
| 08/26/1999 | WO1999042691A1 Jam detector for switch component |
| 08/25/1999 | CN2335292Y Motor protector |
| 08/24/1999 | US5943281 Semiconductor integrated circuit reducing undesired current |
| 08/24/1999 | US5943225 Circuit for removing a peak reverse voltage generated from a power supply source |
| 08/24/1999 | US5942931 Circuit for protecting an IC from noise |
| 08/24/1999 | US5942134 Frequency-changing welding arrangement |
| 08/19/1999 | DE19805499A1 Method for switching on, and supplying circuit for, individual items of motor vehicle electrical equipment |
| 08/18/1999 | EP0936717A2 Electrical switching apparatus employing interlocks for first and second trip functions |
| 08/18/1999 | EP0935834A2 System and related methods for detecting and measuring the operational parameters of a garage door |
| 08/18/1999 | EP0935833A1 Auto up window with obstacle detection system |
| 08/18/1999 | CN2334116Y AC contactor |
| 08/18/1999 | CN1044746C Output coupling to high frequency breakdown signals from middle-high frequency electric magnetic field of large motor |
| 08/17/1999 | US5940260 Apparatus and method for distributing electrical power |
| 08/17/1999 | US5939993 Method for developing a high voltage and device for electrostatic coating product spraying |
| 08/17/1999 | US5939863 Power circuit providing reverse battery protection and current and temperature sensing |
| 08/17/1999 | US5939850 Circuit for driving polyphase motor |
| 08/17/1999 | US5937622 Cordless electric lawn mower having energy management control system |
| 08/17/1999 | CA2170536C Method and device for measuring and recreating the load current in a power network in connection with the occurrence of faults |
| 08/12/1999 | WO1999040662A1 Adaptive distance protection system |
| 08/12/1999 | WO1999025483A9 Spray gun power supply unit monitor |
| 08/12/1999 | CA2319479A1 Adaptive distance protection system |
| 08/11/1999 | EP0935328A2 Single phase compressor thermostat with start relay and motor protection |
| 08/11/1999 | EP0755582B1 A device for indicating a destroyed arrester |
| 08/11/1999 | CN2333112Y Overcurrent protector of power supplying unit |
| 08/10/1999 | US5934398 Electric vehicle motor control apparatus |
| 08/05/1999 | WO1999039421A1 Supplemental battery overcharge protection device |
| 08/05/1999 | WO1999039418A1 Method for symmetrizing asymmetric faults |
| 08/05/1999 | WO1999039400A1 Overcharge protection device and methods for lithium-based rechargeable batteries |
| 08/05/1999 | CA2319267A1 Method for symmetrizing asymmetric faults |
| 08/04/1999 | EP0933859A1 Electronic on-line control and monitoring system for high-voltage circuit breakers |
| 08/04/1999 | EP0933858A1 Method of protection by means of short-circuiting |
| 08/04/1999 | EP0933857A2 Ground fault electrical switching apparatus for coordinating tripping with a downstream ground fault switch |
| 08/04/1999 | CN2332098Y New-type electric machine protector |
| 08/04/1999 | CN1225147A 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 |
| 08/04/1999 | CN1044536C Power converter protecting apparatus for electric power system |
| 08/03/1999 | US5933341 Power converting apparatus |
| 08/03/1999 | US5932990 Charging control system for uniformly charging a series connected battery array |
| 08/03/1999 | CA2228724A1 Method and apparatus for detecting arcs and controlling supply of electrical power |
| 07/29/1999 | CA2260525A1 Ground fault electrical switching apparatus for coordinating tripping with a downstream ground fault switch |
| 07/28/1999 | EP0932236A1 DC current energy storing device |
| 07/28/1999 | CN2331129Y AC motor power-saving protection overall controller |
| 07/28/1999 | CN2331128Y Motor start-up self-control device |
| 07/28/1999 | CN2331112Y Intrinsic safety type motor protector |
| 07/28/1999 | CN2331111Y Short-circuit protection device for electronic switch power supply and electronic transformers |
| 07/27/1999 | US5930096 Overvoltage and surge protection circuit in a hard disk drive |
| 07/27/1999 | US5930092 Power monitoring |
| 07/27/1999 | US5929610 Method and apparatus for shoot-through detection and accommodation in an electric power system including a synchronous generator power source |
| 07/27/1999 | US5929603 Apparatus for preventing over-discharge |
| 07/27/1999 | US5929580 Internal entrapment system |
| 07/27/1999 | US5929576 Protection apparatus for brushless motor |
| 07/27/1999 | US5928366 Microcomputer based system for the fail-safe control of an electric motor or the like |
| 07/22/1999 | WO1999037015A1 A system for controlling a brushless electric motor |