| 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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| 01/02/2008 | CN100359775C Step down transformer and relay protection method of middle low voltage side bus |
| 01/01/2008 | US7315439 Method and circuit arrangement for limiting an overvoltage |
| 01/01/2008 | US7315152 System for detecting current in an output stage of a power amplifier |
| 01/01/2008 | US7315146 Blind device with orientable slats |
| 01/01/2008 | US7313923 Compressor diagnostic system for communicating with an intelligent device |
| 12/27/2007 | WO2007104285A3 Transverse flux machine, and rotary engine comprising such a transverse flux machine |
| 12/27/2007 | WO2007044930A3 Control and protection methodologies for a motor control module |
| 12/27/2007 | WO2006039233A3 Systems and methods for protection of electrical networks |
| 12/27/2007 | US20070297202 Self powered supply for power converter switch driver |
| 12/27/2007 | US20070296379 Generator start/stop controller |
| 12/27/2007 | US20070296378 Straddle-Type Vehicle |
| 12/27/2007 | DE4416803B4 Verfahren und Vorrichtung zum Verstellen fremdkraftbetätigter Teile, insbesondere in einer Fahrzeugkarosserie Method and apparatus for moving power-operated parts, in particular in a vehicle body |
| 12/27/2007 | DE112004003035T5 Verfahren zur Feststellung von Zuständen mit Erdschluss bei einer Motorsteuerung A method for determining states with ground fault in an engine control |
| 12/27/2007 | DE102004037586B4 Verfahren zum Verringern eines Riemengeräuschs A method for reducing noise of a belt |
| 12/26/2007 | EP1870717A1 System and method for determining phase-to-earth admittances of a three-phase electric line |
| 12/26/2007 | EP1869746A1 Method and arrangement for increasing and guaranteeing the selectivity of a switch device in a group of switch devices and use of the arrangement for switching in power circuits |
| 12/26/2007 | CN200997524Y Automatic overload halt protecting circuit of micro-grinding motor |
| 12/26/2007 | CN200997523Y Device for inspecting and alarming concrete agitating motor temperature |
| 12/26/2007 | CN200997522Y Split-phase current differential protecter |
| 12/26/2007 | CN200997517Y Self-thrower of convering station |
| 12/26/2007 | CN200996579Y Luminescent light |
| 12/26/2007 | CN101093974A Energy saving control box for pumping unit in oil field, and energy saving control method |
| 12/26/2007 | CN101093937A Lengthwise linked differential protection criterion of selfadapting current for transmission line |
| 12/26/2007 | CN101093936A Device for cutting off voltage of abnormal power supply |
| 12/26/2007 | CN101093935A Selfadapting method for determining singlephase earth fault of generator stator |
| 12/26/2007 | CN100358234C Electric machine |
| 12/26/2007 | CN100358218C Electric distribution network monitor system |
| 12/26/2007 | CN100358207C 电机保护电路 Motor protection circuit |
| 12/26/2007 | CN100358206C Heat protection device |
| 12/25/2007 | US7313006 Shoot-through prevention circuit for passive level-shifter |
| 12/25/2007 | US7313003 Switching power supply unit |
| 12/25/2007 | US7312967 Electronic apparatus |
| 12/25/2007 | US7312965 Aircraft applicable current imbalance detection and circuit interrupter and packaging thereof |
| 12/25/2007 | US7312962 Intelligent overcurrent protection for power supplies |
| 12/25/2007 | US7312600 AC power regulator circuit |
| 12/25/2007 | US7312593 Thermal regulation of AC drive |
| 12/21/2007 | WO2007145268A1 Charging/discharging circuit for secondary battery, and battery pack |
| 12/21/2007 | WO2007121888A8 Device for operating an electric motor |
| 12/21/2007 | WO2007104733B1 Electronic tripping unit for a motor-circuit breaker of an electric motor |
| 12/20/2007 | US20070291426 System and method for protecting a motor drive unit from motor back emf under fault conditions |
| 12/20/2007 | US20070291425 Electric power source for motor vehicle |
| 12/20/2007 | US20070291424 Abnormality judging apparatus |
| 12/20/2007 | US20070291423 Driving circuit for lamp |
| 12/20/2007 | DE19860721B4 Dreipunkt-Umrichter und Verfahren zu seinem Betreiben Three-point converter and method for its operation |
| 12/19/2007 | EP1868274A1 Battery pack, and battery protecting method |
| 12/19/2007 | EP1868273A2 Automatic trip device, network system using it and control method thereof |
| 12/19/2007 | EP1816733A9 Method in frequency converter, and frequency converter |
| 12/19/2007 | CN200994068Y Charging protection circuit |
| 12/19/2007 | CN200994063Y Automobile battery protection circuit |
| 12/19/2007 | CN200994062Y 智能型配电变压器监控装置 Intelligent power distribution transformer monitoring device |
| 12/19/2007 | CN200991659Y Electric dust-collector high-pressure silicon rectifying system safety protection device |
| 12/19/2007 | CN101091298A Vorrichtung zur befestigung von fahnen |
| 12/19/2007 | CN101091297A 保护电路以及电池组件 Protection circuit and battery pack |
| 12/19/2007 | CN101091296A Method for detecting earth-fault conditions in motor a controller |
| 12/19/2007 | CN101091295A Method and device for fault detection in an n-winding three-phase power transformer |
| 12/19/2007 | CN101090199A High reliable de-excitation method for generater |
| 12/19/2007 | CN101089771A Constant-current voltqage limit power supply with output protection |
| 12/19/2007 | CN101089496A Air conditioner and its distribution error detection method |
| 12/19/2007 | CN100356652C Overload protector of single-phase AC motor |
| 12/18/2007 | US7310251 Control circuit having two-level under voltage lockout threshold to improve the protection of power supply |
| 12/18/2007 | US7310250 Output voltage circuit of power supply |
| 12/18/2007 | US7310025 Oscillator circuit and integrated circuit incorporating the same |
| 12/18/2007 | US7309971 Opening and closing body control device |
| 12/13/2007 | WO2007142143A1 Magnetic device, and switching power source circuit using the device and control method for the circuit |
| 12/13/2007 | WO2007140810A1 By-pass device of an electrical component |
| 12/13/2007 | WO2007106395A3 Arc quenching circuit to mitigate ion beam disruption |
| 12/13/2007 | US20070288182 Method for Detecting Noise Events in Systems with Time Variable Operating Points |
| 12/13/2007 | US20070285954 Regulator Control Circuit and Method |
| 12/13/2007 | US20070285852 Aluminum wound transformer |
| 12/13/2007 | US20070285851 Apparatus and method for cold sparing in multi-board computer systems |
| 12/13/2007 | DE102007016651A1 Leadless integrierte Schaltungsschutzeinrichtung Leadless integrated circuit protective device |
| 12/13/2007 | DE102006034404A1 Überstromschutzeinrichtung für den Einsatz in Überspannungsschutzgeräten mit zusätzlichem mechanischen Auslöser, bevorzugt als Schlagbolzen ausgeführt , Preferably running overcurrent protective device for use in surge protection devices with additional mechanical trigger as striker |
| 12/13/2007 | DE102006026465A1 Filter for e.g. switching power supply, has capacitor attached to secondary winding of transformer and selected such that resonant frequency of parallel resonant circuit is integral multiple of frequency of alternative current voltage |
| 12/13/2007 | DE102006026405A1 Circuit arrangement for motor vehicle-electrical system, has main switch arranged in supply line and triggered by sensor in case of over voltage to separate load from voltage supply |
| 12/12/2007 | EP1864364A1 Converter valve |
| 12/12/2007 | EP0985242A4 Overcharge protection device and methods for lithium-based rechargeable batteries |
| 12/12/2007 | EP0891522B1 Methods and apparatuses for detecting surge in centrifugal compressors |
| 12/12/2007 | CN200990580Y DC motor speed regulating circuit device for overtemperature protection |
| 12/12/2007 | CN200990562Y Economic frequency changer |
| 12/12/2007 | CN200990506Y Circuit for realizing multi-section serial secondary pile protection with unit management |
| 12/12/2007 | CN200990505Y Battery charging protective circuit |
| 12/12/2007 | CN200990504Y Current type three-phase asynchronous motor defect-phase protector |
| 12/12/2007 | CN200990503Y Voltage type three-phase asynchronous motor defect-phase protector |
| 12/12/2007 | CN200990502Y Micro-electric machine protective circuit |
| 12/12/2007 | CN200988118Y Table type tool |
| 12/12/2007 | CN101088212A Apparatus and method for minimizing power loss associated with dead time |
| 12/12/2007 | CN101087121A 供电系统 Power supply system |
| 12/12/2007 | CN101087116A 电机起动器电路 Motor starter circuit |
| 12/12/2007 | CN101087067A A self-check device and method of relay circuit |
| 12/12/2007 | CN101087066A Rectifier with quick disjunction inductive load |
| 12/12/2007 | CN101087065A Air-conditioner compressor protection device and its protection method |
| 12/12/2007 | CN101086937A Intelligent AC vacuum contactor |
| 12/12/2007 | CN100354777C Integrated protection, monitoring and control system |
| 12/12/2007 | CA2591375A1 A pump control apparatus, system and method |
| 12/11/2007 | US7307820 Systems, methods, and device for arc fault detection |
| 12/11/2007 | US7307396 Overload protection system for an electrical device |
| 12/11/2007 | US7307395 Safety device for a sliding panel driven by an electrical motor and method for implementing such a device |
| 12/11/2007 | CA2297968C Bypass apparatus and method for series connected energy storage devices |
| 12/06/2007 | WO2007139477A1 Circuit device for a braked motor |
| 12/06/2007 | WO2007139169A1 Working vehicle |