| 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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| 11/04/2004 | US20040217740 Thermal protection scheme for high output vehicle alternator |
| 11/04/2004 | US20040217724 Driving circuit for rotating motor in forward and reverse direction |
| 11/04/2004 | DE10359225A1 Treiberschaltung für eine Halbleitervorrichtung A drive circuit for a semiconductor device |
| 11/04/2004 | DE10317741A1 Anlage und Verfahren zur Überwachung einer elektrischen Batterie in einem Unterseeboot System and method for monitoring an electric battery in a submarine |
| 11/03/2004 | CN2653774Y High frequency switch power commutating module for communication equipment |
| 11/03/2004 | CN1543034A Fan protective device and method |
| 11/02/2004 | US6813172 Power supply circuit for video display device |
| 11/02/2004 | US6813135 Variable capacitor and method for manufacturing same |
| 11/02/2004 | US6813124 Transformer over-current protection with RMS sensing and voltage fold-back |
| 11/02/2004 | US6813123 Method for protecting a DC generator against overvoltage |
| 11/02/2004 | US6812670 Battery control device |
| 10/28/2004 | US20040213026 Inverter configurations with shoot-through immunity |
| 10/28/2004 | US20040212941 Power sharing system and method for battery operated controller and application modules |
| 10/28/2004 | US20040212934 Transformer over-current protection with RMS sensing and voltage fold-back |
| 10/28/2004 | US20040212338 Window glass obstruction detector |
| 10/28/2004 | US20040212335 Controlled torque drive for a barrier operator |
| 10/28/2004 | DE10303246B3 Switch control circuit for switched power factor converter has signal generation circuit responding to detected critical condition for providing control signal with pulse ratio dependent on regulation signal |
| 10/28/2004 | DE10297186T5 Einklemmerkennungssystem Einklemmerkennungssystem |
| 10/27/2004 | EP1471617A2 Electric circuit |
| 10/27/2004 | EP1470948A1 Traction transformer and method for monitoring an operating status of a traction transformer |
| 10/27/2004 | EP1470625A1 Method for detecting saturation in a current transformer |
| 10/27/2004 | EP0902998B1 Transformer with protection device |
| 10/27/2004 | CN2652014Y Safety charge-discharge controller of lithium ion battery |
| 10/27/2004 | CN2652006Y Transient power cut protective circuit of cascading speed regulator |
| 10/27/2004 | CN2652005Y Microcomputer protector of electric power system |
| 10/27/2004 | CN1540978A Device for turning off overdriven color TV set |
| 10/27/2004 | CN1540830A Digitak type thermal protection method for electromotor |
| 10/27/2004 | CN1173117C Motor protective device of sealing type refrigeration compressor |
| 10/26/2004 | US6810292 Method for nonvolatile storage of at least one operating data value of an electrical motor, and electrical motor for said method |
| 10/26/2004 | US6810069 Electrical arc furnace protection system |
| 10/26/2004 | US6809488 Method for determining the position of an element driven by the drive shaft of a direct current motor |
| 10/22/2004 | CA2464921A1 Window glass obstruction detector |
| 10/21/2004 | WO2004091085A1 Configuration and method for protecting converter means |
| 10/21/2004 | US20040207969 Surge voltage protector for use in power transmission networks |
| 10/21/2004 | US20040207967 Overcurrent detection and protection apparatus for switching element |
| 10/21/2004 | US20040207966 Fan protection method and apparatus |
| 10/21/2004 | US20040207265 Transformer over-current protection with RMS sensing and voltage fold-back |
| 10/21/2004 | DE102004017514A1 Überstromschutzschaltung für geschaltete Stromversorgung The overcurrent protection circuit switched power |
| 10/21/2004 | DE102004005770A1 Betriebsschaltung und die Betriebsschaltung verwendende Leistungsschaltvorrichtung Operating circuit and the operating circuit switching power device used |
| 10/20/2004 | EP1468863A2 Device and method of monitoring an electric battery in a submarine |
| 10/20/2004 | CN1538584A Motor control equipment |
| 10/20/2004 | CN1172413C Sealed compressor with temp. feed-back provided to motor protector |
| 10/19/2004 | US6807038 Semiconductor device |
| 10/19/2004 | US6806672 Movable barrier operator |
| 10/19/2004 | US6806669 Motor overload coil control |
| 10/19/2004 | US6806665 Movable barrier operator having force and position learning capability |
| 10/19/2004 | US6806664 Electro-mechanical actuator including brushless DC motor for providing pinch protection |
| 10/14/2004 | WO2004088812A1 Protection device for electrical three-phase equipment |
| 10/14/2004 | WO2004088338A1 Apparatus and method for evaluating underground electric power cables |
| 10/14/2004 | US20040201943 Operation circuit and power switching device employing the operation circuit |
| 10/14/2004 | US20040201937 Overcurrent protection circuit for switching power supply |
| 10/14/2004 | US20040201935 Driving circuit for semiconductor device |
| 10/14/2004 | US20040201359 Detection of loss of cooling air to traction motors |
| 10/14/2004 | DE10313520A1 Verfahren und Steuerschaltung zum Feststellen eines Betriebszustandes bei der Ansteuerung eines Lüftermotors Method and control circuit for detecting an operating condition when driving a fan motor |
| 10/13/2004 | EP1467462A1 Emergency control device and system for controlling a power transistor |
| 10/13/2004 | EP1467461A1 Method of detecting obstructions caused by motor-driven power windows and similar devices using fuzzy logic algorithms |
| 10/13/2004 | CN2648673Y Phase-defect protector for three-phase motor |
| 10/13/2004 | CN2648672Y Motor open-phase protector |
| 10/13/2004 | CN2648671Y Comprehensive protecting device for motor |
| 10/13/2004 | CN2648670Y Fault complementary phase combined transformer |
| 10/13/2004 | CN2648669Y Coil overheat protector |
| 10/13/2004 | CN1536737A Electric distribution network monitor system |
| 10/13/2004 | CN1536727A Heat protection device |
| 10/13/2004 | CN1171265C Motor servo mechanism for overhead air break electrical power distribution switches |
| 10/12/2004 | US6804128 Current modulation of direct current transmission lines |
| 10/12/2004 | US6804100 Method and apparatus for protection of batteries |
| 10/12/2004 | US6804098 Charge/discharge protection circuit for a rechargeable battery |
| 10/12/2004 | US6803748 System and method for controlling load dump voltage of a synchronous machine |
| 10/12/2004 | CA2038213C Transformer differential relay |
| 10/09/2004 | CA2462944A1 Emergency control process and system for power transistor switching |
| 10/07/2004 | WO2004086601A1 Method and control circuit for determining an operating state when controlling a fan motor |
| 10/07/2004 | WO2004085206A1 Power fold mirror control circuit and method |
| 10/07/2004 | US20040196604 Control system for canceling load unbalance of three-phase circuit |
| 10/07/2004 | US20040196603 Protective relay capable of protection applications without protection settings |
| 10/07/2004 | US20040196599 Battery for portable electronic device |
| 10/07/2004 | US20040196007 Battery pack malfunction detection apparatus and battery pack malfunction detection method |
| 10/07/2004 | US20040195986 Movable barrier operator |
| 10/06/2004 | EP1464102A1 High speed transfer system |
| 10/06/2004 | EP0976194B1 Switch-mode power supply with over-current protection |
| 10/06/2004 | CN2646924Y Automatic storage battery polarity butt joint device |
| 10/06/2004 | CN2646339Y Lift shutter door |
| 10/05/2004 | US6801419 Overcurrent protection circuit for voltage regulator |
| 10/05/2004 | US6801116 Overload protector with hermetically sealing structure |
| 10/05/2004 | US6801009 Current limitation process of brush and brushless DC motors during severe voltage changes |
| 10/05/2004 | US6800952 Method of protection and fault detection for starter/alternator operating in the starter mode |
| 09/30/2004 | WO2004084397A2 Control and monitoring arrangements for an aperture closure member |
| 09/30/2004 | US20040190316 Regulator control circuit and method |
| 09/30/2004 | US20040189229 H-bridge drive utilizing a pair of high and low side MOSFET's in a common insulation housing |
| 09/30/2004 | DE19736754B4 Integriertes Gasentladungsbauelement zum Überspannungsschutz Integrated gas discharge device for overvoltage protection |
| 09/30/2004 | DE102004012886A1 Motorsteuervorrichtung The motor control apparatus |
| 09/29/2004 | EP1149451B1 Method and control mechanism for controlling a drive device for a closing device of a building or an enclosed area |
| 09/29/2004 | CN2645313Y Electric generator exciting arrangement |
| 09/29/2004 | CN1533006A Battery discharge protective regulating circuit |
| 09/29/2004 | CN1532865A Operation circuit and electric power switch device using it |
| 09/28/2004 | US6798627 Engine generator set systems and methods providing load power fault protection |
| 09/23/2004 | WO2004082109A1 Transferring electric power to a power consumer |
| 09/23/2004 | WO2004082092A1 Protection system against an electric motor overload |
| 09/23/2004 | US20040184208 Power protecting device for electrical power source and load |
| 09/23/2004 | US20040184206 Motor control apparatus |
| 09/23/2004 | US20040184202 Multilayer capacitor |