| Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437) |
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| 04/10/2002 | EP0914702B1 Power pack |
| 04/10/2002 | CA2357499A1 Rf receiver with power off control |
| 04/09/2002 | US6370048 AC power system with redundant AC power sources |
| 04/09/2002 | US6369463 Apparatus and method for supplying alternative energy and back-up emergency power to electrical devices |
| 04/04/2002 | WO2002027905A1 Power supply |
| 04/04/2002 | WO2002027891A1 Current adjusting apparatus and current adjusting method |
| 04/04/2002 | WO2002027889A2 Method and apparatus for providing an uninterruptible supply of electric power to a critical load |
| 04/04/2002 | WO2000059444A9 Electrical power system for a self-contained transportable life support system |
| 04/04/2002 | US20020039302 Uninterruptible power system |
| 04/04/2002 | US20020039034 FET-OR circuit and power supply circuit using the same |
| 04/02/2002 | US6366053 DC pump control system |
| 04/02/2002 | US6365991 Method and structure for measurement of a multiple-power-source device during a test mode |
| 03/28/2002 | WO2002025792A1 Power saving control device and energy saving system |
| 03/28/2002 | US20020036911 Uniterruptible power system |
| 03/28/2002 | US20020036479 Power circuit, power supply method, and electronic device |
| 03/28/2002 | US20020036431 Redundant power subsystem |
| 03/27/2002 | EP1191661A2 Uninterruptible power system |
| 03/27/2002 | EP1191660A2 Power circuit, power supply method, and electronic device |
| 03/27/2002 | EP1191426A2 Power failure managing method and power failure managing device |
| 03/26/2002 | US6363146 Reset device |
| 03/26/2002 | US6362979 Switching power amplifier and uninterruptible power system comprising DC/DC converter for providing sinusoidal output |
| 03/26/2002 | US6362597 Power distribution in a portable device |
| 03/26/2002 | US6362541 System and method for reduced standby power consumption in a display device |
| 03/21/2002 | US20020034387 Composite system |
| 03/21/2002 | US20020034140 Disk reproducing speed control method and a disk reproducing apparatus using this method |
| 03/21/2002 | US20020033692 Uninterruptible power supply |
| 03/20/2002 | EP1188213A1 Uninterruptible power supply utilizing thermal energy source |
| 03/20/2002 | CN2482759Y Spare electric power source for fire -fighting |
| 03/20/2002 | CN1340896A Automatic switch equipment for power supply |
| 03/19/2002 | US6359794 Battery backup power supply |
| 03/14/2002 | WO2002021674A1 Power supply for high speed motor |
| 03/14/2002 | WO2002021663A1 Inverter having center switch and uninterruptible power supply implementing same |
| 03/14/2002 | WO2001082260A3 System and method for managing uninterruptible power supply systems |
| 03/14/2002 | WO2001065659A3 Power converters with ac and dc operating modes and methods of operation thereof |
| 03/14/2002 | US20020031000 Uninterruptible duplexed power supply system, and unit plug-in structure for uninterruptible duplexed power supply system |
| 03/14/2002 | US20020030412 Efficient battery transfer circuit |
| 03/14/2002 | US20020030411 Excessive load capacitor detection circuit for UPS |
| 03/13/2002 | EP1187298A2 Uninterruptible duplexed power system, and unit plug-in structure for uninterruptible duplexed power supply system |
| 03/13/2002 | EP1186094A1 Method and apparatus for converting a dc voltage to an ac voltage |
| 03/13/2002 | EP1185439A1 Energy supply system for systems critical to safety in a motor vehicle |
| 03/12/2002 | US6356471 Dynamic feedback adaptive control system and method for paralleling electric power sources and an uninterruptible power supply including same |
| 03/12/2002 | US6356470 Dual input, hot swappable dual redundant, enhanced N+1 AC to DC power system |
| 03/12/2002 | US6356057 Methods and apparatus for testing a powerability characteristic of a backup power supply |
| 03/12/2002 | US6356024 Lighting device for normal and emergent use |
| 03/07/2002 | US20020028700 Power control method in wireless communication device |
| 03/07/2002 | US20020027792 Automatic switchover device for power source |
| 03/07/2002 | US20020027508 Power failure managing device and method for managing a power failure |
| 03/06/2002 | CN2480226Y Moveable power supply vehicle |
| 03/06/2002 | CN1080379C Electric system for motorcycle with electronic oil injection |
| 03/05/2002 | CA2050829C External backup power supply |
| 02/28/2002 | WO2002016826A1 Improvements in lamps, luminaires and lighting systems |
| 02/28/2002 | US20020026548 Bus control module for improving legacy support |
| 02/27/2002 | EP1181508A1 Gas meter with low power consumption mode |
| 02/27/2002 | CN1338140A Methods and aparatus for web-enabled engine-generator systems |
| 02/27/2002 | CN1080022C Power unit for transferring energy by alternately switching winding circuits of transformer at high speed and energy transferring method thereof |
| 02/19/2002 | US6348782 Uninterruptible power supply systems, voltage regulators and operating methods employing controlled ferroresonant transformer circuits |
| 02/19/2002 | CA2266900C Method and arrangement for controlling functions in a program-controlled circuit arrangement when the operating voltage fails |
| 02/14/2002 | WO2002013352A1 Digital signal voting scheme |
| 02/14/2002 | WO2002013351A1 Electric power device controller and working power control system using the same |
| 02/14/2002 | US20020017822 Power control device with electric double layer capacitor unit cells |
| 02/14/2002 | US20020017821 Generator transfer switching system with multiple generator modes |
| 02/13/2002 | CN1335662A Uninterrupted power supply |
| 02/07/2002 | WO2002011263A2 Power grid backfeed protection apparatus |
| 02/07/2002 | US20020014880 Automatic battery charging system (ABC) |
| 02/07/2002 | US20020014802 Power system utilizing a DC bus |
| 02/07/2002 | DE10037958A1 Unit for preventing deep-discharge of vehicle battery, has sensing circuit and switch disconnecting inessential consumers when battery voltage dips sufficiently |
| 02/07/2002 | DE10037358A1 Mains-free switching arrangement for seating and sleeping furniture, avoiding effects of mains electromagnetic fields on user, includes temperature-controlled switches for preventing mains contacts from being switched on |
| 02/01/2002 | CA2353667A1 Generator transfer switching system |
| 01/31/2002 | WO2002009255A1 Automatic battery charging system (abc) |
| 01/31/2002 | US20020012258 Power control device, remote control receiving device and optical communication device with zero power consumption during standby |
| 01/31/2002 | US20020011752 Apparatus and method for rapid fault detection and transfer in a utility-interactive uninterruptible power supply |
| 01/30/2002 | EP1176693A2 Static random access memory backup |
| 01/30/2002 | EP1175585A1 Microprocessor controlled demand defrost for a cooled enclosure |
| 01/29/2002 | US6342736 Inverterless circuit for an uninterruptible power supply |
| 01/24/2002 | WO2002007288A1 Interruption signal decision device and uninterruptible power supply comprising the interruption signal decision device |
| 01/24/2002 | WO2001080026A3 Bus control module |
| 01/24/2002 | DE10033029A1 Notstromversorgungseinrichtung Emergency power supply device |
| 01/23/2002 | CN1078398C Method and device for supplying electrical energy |
| 01/17/2002 | US20020007230 Battery-driven legged robot and method of controlling the same |
| 01/17/2002 | US20020006536 Uninterruptible power supplies employing fuel cells |
| 01/17/2002 | DE10053196A1 Working light used in e.g. as-yet unlit rooms on building sites, includes emergency lighting unit to enable continued use in event of mains interruption |
| 01/17/2002 | DE10031061A1 Vorrichtung zur Notabschaltung zumindest eines Standstromgerätes bei Fahrzeugen und Verfahren zum Abschalten zumindest eines Standstromgerätes Apparatus for emergency shutdown of at least one state power unit for vehicles and method of shutting down at least one state current device |
| 01/17/2002 | DE10029465A1 Lamp used for work on e.g. building site, includes emergency lighting unit used when mains electricity fails or is switched off |
| 01/16/2002 | EP1172916A2 Power control device with electric double layer capacitor unit cells |
| 01/16/2002 | CN2472452Y High performance and cheap emergent lamp for fire control |
| 01/15/2002 | US6339314 Battery charger circuit with low standby power dissipation |
| 01/10/2002 | US20020003480 Method and apparatus for delivering uninterrupted power |
| 01/10/2002 | US20020003379 High efficiency lighting system |
| 01/10/2002 | DE10033317A1 Automobile onboard electrical network has self-holding undervoltage relay for switching safety relevant electrical loads across from onboard network battery to emergency battery |
| 01/09/2002 | EP1169002A1 Electrical power system for a self-contained transportable life support system |
| 01/09/2002 | CN2471052Y Emergent lighting lamp |
| 01/09/2002 | CN1077735C Device for buffering direct voltage at power outlet terminal |
| 01/03/2002 | WO2002001923A1 Rechargeable lamp system |
| 01/03/2002 | WO2002001696A1 Device for powering an appliance |
| 01/03/2002 | WO2002000472A1 Device and method for disconnecting at least one fixed electric device |
| 01/03/2002 | WO2001073921A3 Method and apparatus for coordinating uninterruptible power supply modules to provide scalable, redundant power |
| 01/03/2002 | CA2414337A1 Device and method for switching off at least one stationary-vehicle current apparatus |
| 01/01/2002 | CA2160747C Back-up system for the supply of voltage in television cable systems |
| 12/27/2001 | WO2001048899A3 Multi-output switched power converter providing an uninterrupted voltage at one output |
| 12/27/2001 | US20010055207 Rechargeable lamp system |