| Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437) |
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| 12/17/2008 | CN101325334A Microcomputer type electric power engineering DC power supply cabinet |
| 12/16/2008 | US7466081 Emergency lighting |
| 12/16/2008 | CA2385706C Low-energy storage fast-start uninterruptible power supply system and method |
| 12/11/2008 | WO2008150256A1 Gen-set control system having proactive load relief |
| 12/11/2008 | WO2008100986A3 'dialysis system with efficient battery back-up' |
| 12/11/2008 | US20080305761 Modular System for Connecting Multiple Customer Premises Voice and Data Communications Devices to a T1 Data Line |
| 12/11/2008 | US20080303347 Method and apparatus for maintaining uninterruptible power supplies |
| 12/11/2008 | US20080303346 System and method for a power supply device |
| 12/11/2008 | DE202008009785U1 Permanente elektrische Energieversorgung von Verbrauchern an unabhängigen und mobilen Energiesystemen Permanent electrical power supply to consumers of independent and mobile power systems |
| 12/11/2008 | DE102007021089B3 Verfahren zur Steuerung parallel geschalteter Ersatzstromquellen und Vorrichtung mit parallel geschalteten Ersatzstromquellen Method for controlling parallel-connected backup power sources and apparatus with parallel-connected backup power sources |
| 12/10/2008 | EP1430584A4 Wireless emergency lighting system |
| 12/10/2008 | CN201163725Y Main and standby power self-switching device |
| 12/10/2008 | CN101320919A Intelligent duplicate supply automatic switching device |
| 12/10/2008 | CN101320918A Bypass protection circuit and method |
| 12/10/2008 | CN100442632C Automatic module configuration in a telecommunications power system and battery configuration with a click |
| 12/10/2008 | CN100442631C Capacitor unit |
| 12/09/2008 | US7463500 Monopolar DC to bipolar DC to AC converter |
| 12/09/2008 | US7462954 Apparatus for providing high quality power |
| 12/04/2008 | WO2008146633A1 Network communication system for uninterruptible power supply and method for dividing controller group for performing communication to control operating status of load device of uninterruptible power supply for each uninterruptible power supply |
| 12/04/2008 | WO2008145011A1 Parallel signal transmitting method of uninterrupted power supply |
| 12/04/2008 | US20080296975 Back-up power system |
| 12/04/2008 | US20080296974 Snmp management card capable of supplying power to network device attached thereto |
| 12/04/2008 | US20080296973 Grid interconnection device, grid interconnection system and power control system |
| 12/04/2008 | DE19904851B4 Unterbrechungsfreies Stromversorgungsgerät Uninterruptible power supply |
| 12/03/2008 | CN201160226Y Selective back-up power supply apparatus |
| 12/03/2008 | CN201160223Y Multi-ring website system |
| 12/03/2008 | CN201159761Y Commercial power, generator electric power judgment device |
| 12/03/2008 | CN100440684C Method and apparatus for monitoring UPS power sources |
| 12/02/2008 | US7459804 Static transfer switch device and method |
| 12/02/2008 | US7459803 Iso-parallel UPS system configuration |
| 12/02/2008 | US7459799 Domestic combined heat and power unit |
| 11/27/2008 | WO2008142458A1 Energy management system |
| 11/27/2008 | WO2008141515A1 Method, apparatus and device for power distribution with multiple outputs |
| 11/27/2008 | WO2008106447A3 Portable power supply |
| 11/27/2008 | US20080290733 Dc backup power supply system and disk array using same |
| 11/27/2008 | US20080290732 Power switch system |
| 11/26/2008 | CN201156680Y Automatic throw-in equipment of adaptive standby power supply |
| 11/26/2008 | CN201156679Y Standby electrical power system having independent protection construction |
| 11/26/2008 | CN101312303A Power source switching apparatus |
| 11/26/2008 | CN101312302A Parallel signal transmission method of uninterrupted power source |
| 11/26/2008 | CN101312292A Energy supply controller |
| 11/26/2008 | CN101312290A Overload power utilization protector for home |
| 11/26/2008 | CN100438270C Electrical automatic transfer switch having thermal overload protection |
| 11/26/2008 | CN100438269C Uninterruptible power supplies with converter operation conditioned upon static switch communication and method of operation thereof |
| 11/26/2008 | CN100438257C Separate network and method for operating a separate network |
| 11/26/2008 | CN100437403C Power managing electronic apparatus |
| 11/25/2008 | US7456520 Control system, method and product for uninterruptible power supply |
| 11/25/2008 | US7456518 Method and apparatus for providing uninterruptible power |
| 11/20/2008 | WO2008140613A1 High efficiency alternative/renewable powered ups system |
| 11/20/2008 | WO2008139215A1 Standby power consumption limiting device |
| 11/20/2008 | WO2008138958A2 Circuit arrangement and method for operating an energy storage arrangement |
| 11/20/2008 | WO2008138020A1 Method for controlling an inverter, and inverter |
| 11/20/2008 | US20080284459 Testing Using Independently Controllable Voltage Islands |
| 11/20/2008 | DE10321454B4 System und Verfahren zur Leistungsverwaltung in einem Computersystem mit mehreren Stromversorgungsnetzen System and method for power management in a computer system having a plurality of power supply systems |
| 11/20/2008 | DE102007022286A1 Medizinisches System mit galvanischer Trennung The medical system with galvanic isolation |
| 11/19/2008 | CN201153220Y Electricity selector special for warming machine |
| 11/19/2008 | CN201153219Y Auto-switch-on ring network cabinet for PLC controlled double electricity supply |
| 11/19/2008 | CN101309013A Double supply automatic switch-over circuit |
| 11/19/2008 | CN101309002A Method of start up at least a part of a wind power plant, wind power plant and use of the wind power plant |
| 11/18/2008 | US7453235 Modular uninterruptible power supply |
| 11/18/2008 | US7453169 Integrity testing of isolation means in an uninterruptible power supply |
| 11/13/2008 | WO2008138016A1 Alternative-source energy management |
| 11/13/2008 | WO2008135344A1 Electrical appliance |
| 11/13/2008 | WO2008135343A1 Self-stopping electrical appliance |
| 11/13/2008 | WO2008076095A3 Elevator drive system including rescue operation circuit |
| 11/13/2008 | US20080278889 Modular ups |
| 11/13/2008 | US20080278006 Battery communication system |
| 11/13/2008 | US20080278005 Uninterruptible power supply and method for implementing said power supply |
| 11/13/2008 | US20080278004 Electronic apparatus, power supply system, and method for supplying electric power |
| 11/13/2008 | US20080277945 Protection techniques for a back-up electric power system |
| 11/13/2008 | CA2686671A1 Alternative-source energy management |
| 11/13/2008 | CA2685429A1 Method of controlling parallel-connected backup power sources and apparatus with parallel-connected backup power sources |
| 11/12/2008 | EP1990893A1 Uninterruptible power supply and method of implementing said supply |
| 11/12/2008 | EP1990892A2 Battery discharge current sharing in a tightly regulated power system |
| 11/12/2008 | EP1735892B1 Device for supplying uninterruptible power |
| 11/12/2008 | CN201148309Y Container gantry crane having bidirectional electric supply |
| 11/12/2008 | CN101304180A Composition energy-saving non power brake system and bidirectional transducer module as well as power transferring method |
| 11/12/2008 | CN100433502C Multi-mode uninterruptible power supplies and methods of operation thereof |
| 11/12/2008 | CN100433498C Power supply system |
| 11/12/2008 | CN100433482C Safe battery case for hybrid motor automobile |
| 11/06/2008 | WO2008134127A1 Method for pulse width modulation synchronization in a parallel ups system |
| 11/06/2008 | WO2008134126A1 Transfer switch system with neutral current management |
| 11/06/2008 | WO2008133909A1 Methods and apparatus for providing power to a notification appliance circuit |
| 11/06/2008 | WO2008133733A1 Method and apparatus for synchronization of actions in a parallel ups system using a serial communications bus |
| 11/06/2008 | US20080272656 Apparatus and Method for Distributed Standby Power Provision |
| 11/06/2008 | US20080272655 Uninterruptible Power Supply With Remote Capabilities |
| 11/06/2008 | US20080272654 Methods and apparatus for providing power to a notification appliance circuit |
| 11/06/2008 | CA2685077A1 Methods and apparatus for providing power to a notification appliance circuit |
| 11/05/2008 | EP1380085A4 Adjustable scalable rack power system and method |
| 11/05/2008 | CN201146405Y Intelligent double power supply road-changing device |
| 11/05/2008 | CN201146404Y Intelligent rapid power supply road-changing device |
| 11/05/2008 | CN201146397Y Intelligent rapid emergency power supply system |
| 11/05/2008 | CN101299547A Apparatus and method for distributed standby power provision |
| 11/05/2008 | CN101299540A Apparatus for implementing low voltage cross-over of wind generator set |
| 11/04/2008 | US7446433 Methods and apparatus for providing uninterruptible power |
| 11/04/2008 | US7446432 Electronic device having path of power supplied to display part switched according to whether external power is supplied |
| 10/30/2008 | US20080265682 Leakage current protection circuit |
| 10/30/2008 | US20080265681 Self-Testing Power Supply Apparatus, Methods and Computer Program Products |
| 10/30/2008 | US20080265680 Method for pulse width modulation synchronization in a parallel ups system |
| 10/30/2008 | US20080265679 Transfer switch system with neutral current management |