Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02J - Circuit arrangements or systems for supplying or distributing electric power; Systems for storing electric energy › H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437)
08/2005
08/03/2005CN2715412Y Automatic power supply switching device
08/03/2005CN1649230A Protection system, construction method and use for beam source furnace power-off or misoperation
08/02/2005US6924567 Method and system for managing battery power
08/02/2005US6923168 Fuel control system and method for distributed power generation, conversion, and storage system
07/2005
07/28/2005WO2005069240A2 Fire detector
07/28/2005WO2005067463A2 Power distribution web node and power management process
07/28/2005WO2005038951A3 Method and system for managing battery power
07/28/2005US20050164563 Power terminal block
07/28/2005US20050162877 Transfer circuit topology for redundant power generator regulators and inverting DC drives
07/28/2005US20050162836 Modular UPS
07/28/2005US20050162792 Emergent power supply system and method of achieving input current balance in such system
07/28/2005US20050162281 Consumer unit
07/28/2005US20050162137 Power conversion apparatus and methods using DC bus shifting
07/28/2005US20050162132 Power apparatus and electronic equipment
07/28/2005US20050162019 Methods and apparatus for providing uninterruptible power
07/28/2005US20050162018 Multiple bi-directional input/output power control system
07/28/2005CA2549356A1 Power distribution web node and power management process
07/27/2005EP1557927A2 Power apparatus and electronic equipment
07/27/2005EP1556943A1 Uninterrupted power supply with power-factor correcting bypass mode
07/27/2005EP1556746A2 Apparatus for providing high quality power
07/27/2005CN2713713Y Double draught fan automatic conversion equipment
07/27/2005CN2713712Y Double power supply switching arrangement
07/27/2005CN1647225A Consumer unit
07/27/2005CN1645709A Power apparatus and electronic equipment
07/27/2005CN1645707A Power device of electric apparatus
07/26/2005US6922087 Control arrangement for power electronic system
07/21/2005US20050157482 Non-interruption light source
07/21/2005DE4414943B4 Batterieversorgungsvorrichtung Battery supply device
07/20/2005EP1555185A1 Electrically driven rail vehicle with an emergency power generator and method of powering said vehicle.
07/20/2005CN1643768A Wide bandwidth ac- DC power converter
07/20/2005CN1641968A Power supply system with improved supply quality
07/20/2005CN1641964A Wireless network data device with self-supply power source and its supply method
07/19/2005US6920575 Power source switching unit with integrated charging circuit for selectively coupling an external power source, a computer load, and batteries, for providing temporary power during coupling, and for charging batteries
07/19/2005US6920056 Dual input AC and DC power supply having a programmable DC output utilizing single-loop optical feedback
07/19/2005US6919648 Motor vehicle electric system
07/13/2005CN2710233Y Automatic change-over device of emergency power supply
07/13/2005CN1639958A Charge and discharge control device
07/13/2005CN1639942A Separate network and method for operating a separate network
07/13/2005CN1638226A Power distribution system and control system for same
07/13/2005CN1210931C Arrangement for transmitting useful signal between at least two device units
07/12/2005US6917506 Control apparatus for master/slave outlets
07/12/2005US6917125 Uninterruptible switching power supply device and method for uninterruptibly switching voltage
07/12/2005US6917124 Uninterruptible power supply
07/12/2005CA2248075C Customer side power management system and method
07/12/2005CA2149016C Power systems for plug-in modules
07/07/2005US20050146223 DC backup power supply system
07/05/2005US6914349 Universal uninterruptible power supply input circuitry and methods for configuring same
06/2005
06/30/2005WO2005060318A1 Apparatus and methods for providing an emergency lighting augmentation system
06/30/2005WO2005060067A1 Maintenance free emergency lighting
06/30/2005WO2005036684A3 Power electronics for fuel cell power system
06/30/2005US20050144489 Power supply control apparatus, power supply control system, and administration apparatus
06/30/2005US20050141252 Portable device having integral voltage connector
06/30/2005US20050140209 Power distribution web node and power management process
06/30/2005US20050140142 Transformerless, load adaptive speed controller
06/30/2005DE19910015B4 Verfahren und Vorrichtung zur Verlängerung der Pufferzeit eines Uhrenschaltkreises Method and apparatus for extending the buffering time of a clock circuit
06/30/2005DE19732299B4 Netzspannungsversorgungseinrichtung Mains power supply unit
06/29/2005EP1548912A1 Modular uninterruptible power supply with adaptation of power by stackable modules
06/29/2005EP1547231A2 Power conversion in variable load applications
06/29/2005CN1208773C Controlling device for image recording regeneration apparatus
06/28/2005US6912411 External power supply control system for cellular phone
06/28/2005US6912123 Power supply device
06/28/2005CA2243630C Controller for power converter
06/28/2005CA2210024C Method and apparatus for power supply switching with logic integrity protection
06/23/2005US20050135103 Apparatus and methods for providing emergency safety lighting
06/23/2005US20050134121 Power distribution system and control system for same
06/23/2005DE102004052864A1 Energiesicherungssystem für ein drahtloses Telefonsystem Energy system for a wireless telephone system
06/22/2005EP1544977A2 Power distribution system with a transfer switch
06/22/2005EP1543676A2 System and method for on-demand battery backup for cable telephony device
06/22/2005EP1543242A2 Mobile power system
06/22/2005CN2705936Y Control system of small petrol generating set
06/22/2005CN2705812Y Electronic memory automatic positioner of analogue electric wave clock
06/22/2005CN1630158A A novel energy-saving elevator
06/19/2005CA2490643A1 Power distribution system and control system for same
06/16/2005US20050127882 Switching circuit for master-slave feeding mode of low voltage power supply
06/16/2005US20050127880 Induction generator power supply
06/16/2005US20050127842 Emergency lighting function illumination appliance
06/16/2005US20050127758 System and method for power management when an operating voltage is between two thresholds
06/15/2005EP1542333A2 A switching circuit for master-slave feeding mode of low voltage power supply
06/15/2005EP1541422A1 Vehicle power source device and vehicle using the power source device
06/15/2005EP1540758A1 Method and system for balanced control of backup power
06/15/2005CN1628336A Display and power-saving controller
06/15/2005CN1627593A Switching circuit for low voltage power supply in master-slave power supply mode
06/14/2005US6906933 Power supply apparatus and methods with power-factor correcting bypass mode
06/14/2005US6906435 Uninterruptible power system with two current conversion units
06/09/2005WO2005053133A1 A street lighting system
06/09/2005WO2005053132A1 Power supply system
06/09/2005WO2005053130A1 Intelligent safety device for vehicle on-board electric equipment
06/09/2005WO2005029668A3 Automatic transfer switch and protection device
06/09/2005US20050122653 Method and system for balanced control of backup power
06/09/2005US20050121979 Direct-current uninterruptible power source unit
06/09/2005DE202005001810U1 Multifunctional interruption free emergency current supply unit has additional ability to charge nickel hydroxide or nickel chromium batteries
06/08/2005EP1537643A2 Electronic device with attachment and switching between batteries therefor
06/08/2005CN1625035A Uninterruptive bypass device for high/low voltage phase
06/08/2005CN1625015A Emergency power supply
06/08/2005CN1624848A Power supply switching device
06/08/2005CA2450028A1 Tj power
06/07/2005US6904530 Bus control module for improving legacy support
06/07/2005US6903950 Programmable power converter
06/07/2005US6902837 Method and system for balanced control of backup power
06/02/2005US20050117376 Power converter with retractable cable system
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