| 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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| 09/23/2004 | US20040183505 Voltage regulator for alternator and method of controlling power generation of alternator |
| 09/23/2004 | US20040183503 Method and circuit for using polarized device in AC applications |
| 09/23/2004 | US20040183493 Collision monitoring system |
| 09/23/2004 | DE102004010959A1 Anordnung zum Schutz vor Überlast eines Elektromotors Arrangement for protection against overload of an electric motor |
| 09/22/2004 | EP1459437A1 Method and circuit arrangement for protecting an electric motor from an overload |
| 09/22/2004 | CN2643529Y Handset battery charger |
| 09/22/2004 | CN2643527Y Current limiting circuit for DC brushless motor |
| 09/22/2004 | CN2643526Y An overload and short protection circuit |
| 09/22/2004 | CN1531160A Differential pressure separating protector of resistor set |
| 09/22/2004 | CN1531159A Differential pressure regulating protector of resistor set |
| 09/21/2004 | US6795287 Static excitation system having capability of eliminating shaft vibrations of a generator and overvoltage when underexited |
| 09/21/2004 | US6795284 Device for stopping a single-phase asynchronous motor with phase-shifting capacitor |
| 09/21/2004 | US6794926 Charge pump with current limiting circuit |
| 09/21/2004 | US6794837 Motor speed-based anti-pinch control apparatus and method with start-up transient detection and compensation |
| 09/21/2004 | US6794775 Sensorless stall detection for motors |
| 09/21/2004 | CA2196651C Low-voltage electromagnetic riveter |
| 09/16/2004 | US20040179829 Amperage control for protection of battery over current in power tools |
| 09/16/2004 | US20040179448 OPU burnout protection circuit and optical drive utilizing the same |
| 09/16/2004 | US20040179379 Rectifying circuit |
| 09/16/2004 | DE10261452A1 Motorsteuerung mit einer Steuereinrichtung und einer Sicherheitsvorrichtung zum sicheren Abschalten eines Motors Engine control with a control device and a safety device for safely switching off an engine |
| 09/16/2004 | DE102004018045A1 Verfahren zum Betrieb eines elektrisch betriebenen Verstellantriebs mit Einklemmschutz A method of operating an electrically driven adjusting drive with trap |
| 09/15/2004 | EP1456929A1 A control circuit |
| 09/15/2004 | EP1456926A1 Transient voltage clamping circuit |
| 09/15/2004 | CN2641920Y Intelligent energys aving protecting controller of three-phase a.c asynchronous dynamo |
| 09/15/2004 | CN2641893Y Multi-purpose portable power source |
| 09/15/2004 | CN2641882Y Overcurrent protector for motor of children electric driven cart |
| 09/15/2004 | CN2641881Y Overvoltage protector for generator of heavy truck |
| 09/15/2004 | CN1529396A Lithium cell charging protection circuit |
| 09/15/2004 | CN1167176C Relay protection and failure location system for power distribution network |
| 09/14/2004 | US6791852 Method for detecting and identifying shorted thyristors |
| 09/14/2004 | US6791809 Charge/discharge protection circuit |
| 09/09/2004 | US20040174723 Power inverter |
| 09/09/2004 | US20040174650 Compressor terminal fault interruption method and apparatus |
| 09/09/2004 | DE10307708A1 Verfahren zur Temperaturüberwachung eines Elektromotors A method for monitoring the temperature of an electric motor |
| 09/09/2004 | DE10013110B4 Selektiver Leitungsschutzschalter Selective circuit breaker |
| 09/08/2004 | EP1455430A2 Device for the protection of a non-synchronized engine against idle running |
| 09/08/2004 | EP1455429A1 Ground-fault protection coordinating system and ground-fault circuit interrupter with ground-fault protection coordinating unit |
| 09/08/2004 | EP0774175B1 Movable barrier operator having force and position learning capability |
| 09/08/2004 | CN2640092Y Instantaneous power cut protector for electric motor |
| 09/08/2004 | CN2640091Y Solar remote controller |
| 09/08/2004 | CN1528001A Surge voltage protector for use in power transmission networks |
| 09/07/2004 | US6788505 Aircraft applicable current imbalance detection and circuit interrupter and packaging thereof |
| 09/07/2004 | US6788503 Protecting circuit against short-circuit of output terminal of AC adapter |
| 09/07/2004 | US6788034 Method for operating a transformer from a drivable voltage source, as well as an apparatus for carrying out the method |
| 09/07/2004 | US6788016 Motor speed-based anti-pinch control apparatus and method with endzone ramp detection and compensation |
| 09/07/2004 | US6788015 Brushless dc machine |
| 09/02/2004 | US20040169975 Method and circuit arrangement for limiting an overvoltage |
| 09/02/2004 | US20040169968 Method and circuit arrangement for protecting an electric motor from an overload |
| 09/02/2004 | DE4412507B4 Steuerung für eine Kühlanlage Control for a refrigeration system |
| 09/01/2004 | EP1453172A1 Method of detecting obstructions caused by electric windows and similar devices using current ripple |
| 09/01/2004 | EP1451922A1 Rectifying circuit |
| 09/01/2004 | EP1451914A1 Method for detecting a defective cooling fan and for generating an alarm signal |
| 09/01/2004 | CN2638326Y High frequency switch power supply for plasma display screen |
| 09/01/2004 | CN2638312Y Automatic sectional controller |
| 09/01/2004 | CN2638311Y Total automation device for transformer substation |
| 09/01/2004 | CN2638310Y Multifunctional protector for beam-pumping unit |
| 09/01/2004 | CN2638232Y Self-restoring over-current protective combined device |
| 09/01/2004 | CN1526195A Microprocessor for controlling the speed and frequency of a motor shaft in a power tool |
| 09/01/2004 | CN1525638A Intelligent high performance power saver for motor |
| 09/01/2004 | CN1165101C Apparatus and method for determining local short-circuit |
| 08/31/2004 | US6785108 Semiconductor equipment |
| 08/31/2004 | US6784687 Diagnostic device for electric mechanism drive circuits |
| 08/26/2004 | WO2004073135A2 Monitoring system for a generator |
| 08/26/2004 | WO2004073003A2 Switch sensing to prevent inadvertent motor startup |
| 08/26/2004 | US20040165325 Over heat protection circuit for a brushless dc |
| 08/26/2004 | US20040165323 Variable capacitor and method for manufacturing same |
| 08/26/2004 | US20040164717 Method and system for operating a generator using a dynamic capability curve |
| 08/26/2004 | DE10306569A1 Operating method for gate, involves retarding movement of gate when comparison result exceeds threshold value such that comparison result is obtained by comparing actual and desired values of drive characteristic as function of distance |
| 08/25/2004 | EP1450460A2 Method for monitoring the temperature of an electromotor |
| 08/25/2004 | EP1450459A1 Fault tolerant busbarstation with circuit-breakers and method for controlling a such station |
| 08/25/2004 | EP1449287A1 Control and protection module of an interrupter apparatus |
| 08/25/2004 | EP1028814A4 Spray gun power supply unit monitor |
| 08/25/2004 | CN2636477Y Voltage dropping starting explosion proof power saving capacity increasing compensation device for breaking phase alarming and automatic breaking |
| 08/25/2004 | CN2636476Y Double short protective circuit for electronic refrigeration switch power source |
| 08/25/2004 | CN1523725A Over current protective amperage control for battery of electric tool |
| 08/25/2004 | CN1523620A Layered capacity |
| 08/24/2004 | US6781341 Abnormality detector for a motor drive system |
| 08/19/2004 | WO2004070908A1 Secondary cell with bypass resistor and secondary cell protective method |
| 08/19/2004 | US20040162696 Method and system for detecting incipient failures in a traction system |
| 08/19/2004 | US20040160714 Components having actively controlled circuit elements |
| 08/19/2004 | DE10361698A1 Einstellverfahren und Vorrichtung für automatische Krafteinstellung einer beweglichen Barriere Setting and apparatus for automatic power adjustment of a movable barrier |
| 08/18/2004 | EP1447831A1 Device for protecting against overvoltage due to lightning |
| 08/18/2004 | CN2634696Y Automatic protector for overheat of draught fan motor |
| 08/18/2004 | CN2634695Y Protector of rotating speed differential motor |
| 08/18/2004 | CN1522486A Power inverter |
| 08/18/2004 | CN1521913A Electronic apparatus |
| 08/18/2004 | CN1520968A Dual-mode non-isolated corded system for transportable cordless power tools |
| 08/18/2004 | CN1162948C Power supply phase sequence automatic regulator of three-phase air-conditioner |
| 08/17/2004 | US6778372 Controls for loads such as air conditioner compressors |
| 08/17/2004 | US6778370 Adaptive recloser/sectionalizer |
| 08/17/2004 | US6778369 Electric distribution device, installation comprising such a device, and electrical protection process |
| 08/17/2004 | US6777917 Supercapacitor balancing method and system |
| 08/17/2004 | US6776362 Device wherein spray distance of electrostatic spray gun relative to article to be coated may be maintained to provide good efficiency of spray coating |
| 08/12/2004 | WO2004068543A2 Electrostatic discharge circuit and method therefor |
| 08/12/2004 | WO2004068540A2 Hardmask with high selectivity for ir barriers for ferroelectric capacitor manufacturing |
| 08/12/2004 | WO2004067473A1 Dielectric ceramic, process for producing the same and laminate ceramic capacitor |
| 08/12/2004 | WO2004040529A3 Bus total overcurrent system for a protective relay |
| 08/12/2004 | US20040158428 Intelligent auxiliary cooling system |
| 08/12/2004 | US20040156160 Power supply with surge voltage control functions |
| 08/12/2004 | US20040156157 Combination current sensor and relay |