| Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437) |
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| 04/10/2008 | WO2007148177B1 Apparatus for controlling the switching on/off of a power unit |
| 04/10/2008 | US20080084118 System and process for direct current power supply of an electrical network on board an aircraft |
| 04/10/2008 | DE202008001833U1 Notstromversorgungssystem mit einer separaten Schutzanordnung Emergency power supply system with a separate protection order |
| 04/09/2008 | CN201045748Y Ups |
| 04/09/2008 | CN201045464Y Lighting device |
| 04/09/2008 | CN101159385A Veneer power source backup method and system |
| 04/09/2008 | CN101158865A Electricity generator monitoring system device |
| 04/09/2008 | CN100380776C Electronic device with attachment and switching between batteries therefor |
| 04/09/2008 | CN100380775C Combination of AC-DC to DC converter |
| 04/08/2008 | US7355349 Apparatus and methods for providing emergency safety lighting |
| 04/08/2008 | US7355303 Constant voltage discharge device |
| 04/08/2008 | CA2373762C Method and apparatus for converting a dc voltage to an ac voltage |
| 04/03/2008 | WO2008040006A1 System and method for the detection of regenerated ac voltage |
| 04/03/2008 | WO2008040003A1 Method and apparatus for parallel engine generators |
| 04/03/2008 | WO2008039293A2 Power supply and electronic ballast with auxiliary protection circuit |
| 04/03/2008 | WO2008037428A1 Standby saver |
| 04/03/2008 | US20080078625 Emergency escape apparatus for elevator |
| 04/03/2008 | CA2664412A1 Standby saver |
| 04/02/2008 | EP1905149A1 Dual-input dc-dc converter with integrated ideal diode function |
| 04/02/2008 | CN201044375Y Uninterruption power source system with high reliability |
| 04/02/2008 | CN201044374Y Improved structure of electric power storage equipment |
| 04/02/2008 | CN201044368Y Automatic discharge structure for accumulators |
| 04/02/2008 | CN101156295A Electric power supply system |
| 04/02/2008 | CN101154829A Method for implementing automatic switching of ring main unit standby power by FTU |
| 04/02/2008 | CN101154818A Method and system for parallel connection of UPS derated models with different capacitance grade |
| 04/02/2008 | CN101154094A Automatic change-over switch for intelligent adjusting power supply of drive motor |
| 04/02/2008 | CN100379120C Vehicle anti-theft system |
| 04/02/2008 | CN100379119C Conversion device with power factor correcting and DC-DC conversion function |
| 04/02/2008 | CN100379114C Charging circuit, urgent lighting device and luminous device |
| 04/01/2008 | US7352087 Power system configuration |
| 04/01/2008 | US7352082 Transfer switch device and method |
| 03/27/2008 | WO2008036948A2 Charging methods for nickel-zinc battery packs |
| 03/27/2008 | WO2007133289A3 Electronic control transformer using dc link voltage |
| 03/27/2008 | US20080073977 Power over ethernet battery backup |
| 03/27/2008 | US20080073157 Auxiliary power supply apparatus and method |
| 03/27/2008 | DE112004002556T5 Energieverteilungsnetzknoten und Energieverwaltungsprozess Power distribution network nodes and power management process |
| 03/26/2008 | EP1901940A2 Control unit for personal protection |
| 03/26/2008 | CN201041956Y Power supply circuit for control circuit in high voltage device |
| 03/26/2008 | CN201041955Y Dual power supply switching control device |
| 03/26/2008 | CN101150260A Power supply switch and anti-jump control method and device |
| 03/26/2008 | CN101148151A Train two-step method traction intercrossing junction power supplying method |
| 03/26/2008 | CN100377469C Single-deck power supply backup method and backup system |
| 03/26/2008 | CA2838889A1 Configurable safety light receptacle |
| 03/26/2008 | CA2600426A1 Configurable safety light receptacle |
| 03/25/2008 | USRE40161 Cam operated inverter bypass safety switch |
| 03/25/2008 | US7348760 Power management topologies |
| 03/25/2008 | US7348759 Electronic apparatus, electronic apparatus system, and operation mode switching method |
| 03/20/2008 | WO2007140203A3 Systems and methods for reducing power losses in a medical device |
| 03/20/2008 | US20080068782 Mobile power system |
| 03/20/2008 | US20080067872 Apparatus and method for employing a DC source with an uninterruptible power supply |
| 03/20/2008 | DE102006041659A1 Portable electric generator, has transportable container that is developed as closed, automatically controlling energy network system, adjustable consumer connection, and regulating, controlling and current transformer equipment |
| 03/20/2008 | DE102006040753A1 Redundante Stromversorgung mit Diagnosefähigkeit und Schutzbeschaltung Redundant power supply with diagnostic capability and protection |
| 03/20/2008 | CA2662898A1 Method of powering up a plurality of loads in sequence |
| 03/19/2008 | EP1900089A2 Maximized battery run-time in a parallel ups system |
| 03/19/2008 | EP1301974B1 Wind power plant with an emergency power supply device |
| 03/19/2008 | CN201038827Y Intelligent monitoring system for blast furnace slipping prevention blower |
| 03/19/2008 | CN201038826Y Frequency conversion power control device for viscose filament spinning machine group |
| 03/19/2008 | CN201038825Y Branch-station power synchronization device for transformer substation monitoring system |
| 03/19/2008 | CN201038824Y A RF card and a RF recognition system |
| 03/19/2008 | CN201038823Y Onboard heat switching device |
| 03/19/2008 | CN201038822Y Quick non-interrupted power system |
| 03/19/2008 | CN201038821Y A drive system for petroleum borer and workover rig |
| 03/19/2008 | CN201038795Y High-frequency emergency power supply unit |
| 03/19/2008 | CN201038046Y Highly intelligent duplicate power supply automatic switching device |
| 03/19/2008 | CN100376067C Control method for fuel cell safety operation |
| 03/18/2008 | US7345454 Energy storage system |
| 03/18/2008 | US7345380 Backup power supply system with a null transfer time |
| 03/13/2008 | WO2008028567A1 Electrical system of a vehicle, provided for the towing away of the same |
| 03/13/2008 | WO2006065435B1 Power system with redundant power supply apparatus |
| 03/13/2008 | US20080062724 Bidirectional active power conditioner |
| 03/13/2008 | US20080061741 Power supply device |
| 03/13/2008 | US20080061628 Method and apparatus for providing uninterruptible power |
| 03/12/2008 | EP1537643A4 Electronic device with attachment and switching between batteries therefor |
| 03/12/2008 | CN201035349Y Cis-position master-slave synchronisation control circuit device |
| 03/12/2008 | CN201034261Y LED energy-saving lamp capable of lighting for emergency |
| 03/11/2008 | US7342326 Circuit arrangement for momentarily maintaining an internal operating direct current voltage in the event of an interruption in the vehicle electrical system power supply voltage |
| 03/06/2008 | WO2008025981A1 A device for supplying electrical power and cooled air |
| 03/06/2008 | WO2008008209A3 Power converter with integral battery |
| 03/06/2008 | US20080054723 Embedded battery control circuit and driving method thereof |
| 03/06/2008 | US20080054722 Method and apparatus for transfer of a critical load from one source to a back up source using magnetically latched relays |
| 03/06/2008 | DE202006020298U1 Schaltungsanordnung zum Betreiben von Leuchtmitteln oder vergleichbaren Lasten im Netz- oder Notstrombetrieb Circuit arrangement for operating lamps or similar loads in the network or emergency power |
| 03/05/2008 | EP1352443B1 Cellular telephone comprising a backup-battery |
| 03/05/2008 | CN201032694Y Dual-power supply switch circuitry |
| 03/05/2008 | CN201032693Y Modularization parallel power dedicated UPS power supply device |
| 03/05/2008 | CN201032687Y Triggering type power supply switching mechanism for cars |
| 03/05/2008 | CN201032068Y Charging electronic candle |
| 03/05/2008 | CN101138114A 燃料电池应急系统 The fuel cell emergency system |
| 03/05/2008 | CN101136558A Power supply system and switch circuit, switch method of main power source and backup battery |
| 03/05/2008 | CN101136557A Uninterrupted power supply and its configuration method |
| 03/05/2008 | CN100373744C Unit resident normal/ emergency power supply switch board and its power supply automatic converting device |
| 03/05/2008 | CN100373741C Protection system, construction method and use for beam source furnace power-off or misoperation |
| 02/28/2008 | WO2008023861A1 Isolation control high speed transfer switch for uninterruptible power supply, power supply system using the switch and isolation control high speed transfer switching method |
| 02/28/2008 | WO2008022549A1 Electronic ballast device for uninterrupted lighting of hid lamp |
| 02/28/2008 | US20080048884 Traffic signal transfer switch |
| 02/27/2008 | EP1892825A2 Motor driving circuit |
| 02/27/2008 | CN201029211Y Double-power supply manual switching mechanism for communication base station |
| 02/27/2008 | CN100372214C Hybrid power system and method |
| 02/27/2008 | CN100372209C Method for making operation of load in spare mode (peak-reduced power mode) |
| 02/26/2008 | US7336005 System and method for brownout protection of a FET based battery switch |
| 02/26/2008 | US7336003 Transfer switch and power system including the same |