| Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437) |
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| 11/13/2002 | CN2520625Y Lighting device of automatic switching from fluorescent lamp to LED vice versa |
| 11/13/2002 | CN1379526A Monitor screen of automatic switching between three power supplies |
| 11/12/2002 | US6480761 Battery-driven legged robot and method of controlling the same |
| 11/12/2002 | US6479970 Un-interruptible power supply |
| 11/12/2002 | US6479965 Autoilluminating rechargeable lamp system |
| 11/12/2002 | CA2206724C High efficiency, no dropout uninterruptable power supply |
| 11/07/2002 | DE10118569A1 Circuit arrangement for testing uninterruptible power supplies is connected to the UPS on its input side and connected to the power supply network on its output side via a swing transformer and an equalizing coil |
| 11/06/2002 | EP0972330B1 Flywheel power supply |
| 11/05/2002 | US6476583 Automatic battery charging system for a battery back-up DC power supply |
| 11/05/2002 | US6476519 Power back-up unit with low voltage disconnects that provide load shedding |
| 10/31/2002 | US20020158683 Circuit arrangement to reduce the supply voltage of a circuit part and process for activating a circuit part |
| 10/30/2002 | EP1252701A2 Multi-output switched power converter providing an uninterrupted voltage at one output |
| 10/24/2002 | WO2002084670A1 Device for emergency power supply to auxiliary components of a nuclear power plant and use method |
| 10/24/2002 | WO2002030174A3 Rotary dynamic system power distribution unit |
| 10/24/2002 | US20020153865 Uninterruptible power supply system having an NiMH or Li-ion battery |
| 10/24/2002 | US20020153779 Battery charger control circuit and an uninterruptible power supply utilizing same |
| 10/24/2002 | US20020153778 Ferroelectric transformer-free uninterruptible power supply (UPS) systems and methods for communications signal distribution systems |
| 10/24/2002 | US20020153777 Method and system for maintaining full power during a power interruption in a multiple power supply system |
| 10/24/2002 | DE10118353A1 Vorrichtung zur unterbrechungsfreien Stromversorgung mit einer Brennstoffzelle Apparatus for uninterruptible power supply with a fuel cell |
| 10/24/2002 | CA2445185A1 Device for emergency power supply to auxiliary components of a nuclear power plant and use method |
| 10/23/2002 | CN1093305C Spare electric-power supply using dc-dc converter |
| 10/17/2002 | WO2002082618A1 Minimizing standby power in a digital adressable lighting interface |
| 10/17/2002 | WO2001054249A9 Uninterruptible power generation system |
| 10/17/2002 | US20020149265 Apparatus for uninterrupted power supply including a fuel cell |
| 10/17/2002 | US20020149206 Continuous power supply with back-up generation |
| 10/16/2002 | EP1249883A2 Device for uninterrupted power supply with a fuel cell |
| 10/16/2002 | CN1375123A System for controlling the delivery of power to DC computer components |
| 10/15/2002 | USRE37876 Power supply switch reference circuitry |
| 10/15/2002 | US6465984 Pseudo battery pack, battery pack, electronic apparatus, and electronic apparatus system and method |
| 10/15/2002 | US6465912 Power transfer device |
| 10/15/2002 | US6465911 Power supply system switching device and method of switching between power supply system |
| 10/15/2002 | US6465910 System for providing assured power to a critical load |
| 10/15/2002 | US6463738 Method and apparatus for providing a continuous supply of electric power |
| 10/10/2002 | WO2002061910A3 Uninterruptible power supply system |
| 10/10/2002 | US20020145894 Power supply device having two AC power inputs |
| 10/10/2002 | US20020145338 Uninterruptable power supply with energy control |
| 10/09/2002 | CN2515856Y Emergency power supply control cabinet |
| 10/09/2002 | CN1373535A Electricity-saving socket unit allowing to remotely control |
| 10/08/2002 | US6462437 System and method for alternating standby mode |
| 10/03/2002 | WO2002076794A2 Wake up system for electronic component in a vehicle using a bus technology |
| 10/03/2002 | US20020140403 Un-interruptible power supply |
| 10/03/2002 | US20020140360 Remote control test apparatus |
| 10/03/2002 | US20020140293 Backup power supply for restraint control module |
| 10/03/2002 | US20020140292 Wake up system for electronic component supported on a vehicle |
| 10/01/2002 | US6459175 Universal power supply |
| 10/01/2002 | US6459173 Self-programmable battery load/bias for memory expansion module |
| 09/26/2002 | US20020138785 Power supply critical state monitoring system |
| 09/26/2002 | US20020138775 Power supply event notification system |
| 09/26/2002 | US20020138176 Automated aggregation and management of distributed electric load reduction |
| 09/26/2002 | US20020136042 System for detecting defective battery packs |
| 09/26/2002 | US20020136038 Multipurpose data port |
| 09/26/2002 | US20020135328 Electric power conversion apparatus |
| 09/26/2002 | US20020135233 Power system |
| 09/26/2002 | DE10114570A1 Einrichtung zur unterbrechungsfreien Stromversorgung und zur Aktivfilterung Means for uninterruptible power supply and active filtering |
| 09/25/2002 | EP1244193A2 Device for uninterruptible power supply and for active filtering |
| 09/25/2002 | EP1153466B1 Emergency light system |
| 09/25/2002 | CN2513275Y Full digital control power special UPS |
| 09/24/2002 | US6456837 Ruggedized tradesworkers radio |
| 09/24/2002 | US6456508 Drive apparatus for vibrating-type compressor |
| 09/24/2002 | US6456507 Structure of uninterrupted power supply |
| 09/24/2002 | US6455954 Auxiliary power supply system serving as primary power source during selected times and power outages |
| 09/24/2002 | US6455953 Dual power modes electronics apparatus |
| 09/24/2002 | US6455949 Vehicle electrical system in motor vehicles |
| 09/19/2002 | US20020131788 Power supply control apparatus and image formation apparatus |
| 09/19/2002 | US20020130648 Power factor corrected UPS with improved connection of battery to neutral |
| 09/19/2002 | US20020130641 Apparatus and method for providing span power to communication equipment at a customer premise |
| 09/19/2002 | US20020130556 Method for apparatus for transfer control and undervoltage detection in an automatic transfer switch |
| 09/19/2002 | DE10108751A1 Energy-saving circuit for temporary activation of electrical device in stand-by mode uses triac connecting electrical load to current network for timed duration |
| 09/18/2002 | EP1241776A1 Power supply |
| 09/18/2002 | EP1078436B1 Systems and methods for producing standby uninterruptible power for ac loads using rectified ac and battery |
| 09/18/2002 | CN1369754A Spare circuit for electronic device |
| 09/12/2002 | WO2002071585A2 Circuit and method for inputting a start signal for a controller |
| 09/12/2002 | WO2002071573A1 Power saving outlet device that allows remote control |
| 09/12/2002 | WO2002071572A1 System for providing assured power to a critical load |
| 09/12/2002 | WO2002071568A2 Uninterruptible power supply systems and methods using rectified ac with current control |
| 09/12/2002 | WO2002052690A3 Battery charger circuit with low standby power dissipation |
| 09/12/2002 | WO2002037637A3 Method for controlling the charging and discharging phases of a back-up capacitor |
| 09/12/2002 | WO2001013489A9 Transfer mechanism for transferring power between a utility source and a stand-by generator |
| 09/12/2002 | US20020128748 Configurable switchgear system |
| 09/12/2002 | US20020126467 Structure of uninterrupted power supply |
| 09/12/2002 | US20020125862 Electrical energy distribution system and contactor for such a system |
| 09/11/2002 | EP1238453A1 Standby electric supply and a method for controlling the operation of a standby electric supply |
| 09/11/2002 | CN1369128A External power supply control system for cellular phone |
| 09/11/2002 | CN1369127A Electric device and apparatus for charging battery unit, and method for charging and discharging |
| 09/10/2002 | US6449173 Alternating current to direct current distributor |
| 09/06/2002 | WO2002052689A3 Back-up battery for a cellular telephone |
| 09/06/2002 | WO2001022555A9 Switching circuit and related method |
| 09/05/2002 | US20020124192 Power source switching unit and computer |
| 09/05/2002 | US20020122322 Uninterruptible power supply systems and methods using rectified AC with current control |
| 09/05/2002 | DE10109796A1 Schaltung und Verfahren zur Vorgabe eines Startsignals für einen Controller Circuit and method for providing a start signal for a controller |
| 09/05/2002 | DE10107469A1 Mains free circuit for seating/sleeping furniture, has auxiliary circuit relays for connection to second mains stage potential simultaneously with first relay, switching motor changeover contacts |
| 09/04/2002 | CN2509814Y Charging exciter lamp |
| 09/04/2002 | CN2509766Y Switch source of double-channel power source input |
| 09/03/2002 | US6445986 Static random access memory backup |
| 09/03/2002 | US6445936 Low power consumption quick charge for wireless device |
| 09/03/2002 | US6445658 Disk reproducing speed control method and a disk reproducing apparatus using this method |
| 09/03/2002 | US6445163 Battery cutoff timer |
| 09/03/2002 | US6445159 Power sharing method and circuit for simultaneously charging multiple loads |
| 09/03/2002 | US6445089 Uninterruptible power system |
| 09/03/2002 | US6445088 Multipurpose data port |