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)
04/2003
04/02/2003CN2543262Y Double-power supplied DC power supply device
03/2003
03/27/2003US20030058595 Power supply
03/26/2003EP1295376A1 Method and apparatus for providing an uninterruptible supply of electric power to a critical load
03/26/2003EP0935836B1 Portable electronic device and method
03/26/2003CN1406406A Battery charger circuit with low standby power dissipation
03/26/2003CN1405943A Electric-power supply method and power-supply controlling information processing apparatus
03/26/2003CN1104078C Power network power-source
03/26/2003CN1104077C Power source apparatus
03/26/2003CN1104076C Uninterruptible power supply apparatus
03/25/2003US6538906 Energy storage circuit for DC-DC converter
03/25/2003US6538345 Load bank alternating current regulating control
03/25/2003US6538344 Uninterruptable power supply system with automatic data storing arrangement
03/20/2003WO2003023937A1 Wireless emergency lighting system
03/20/2003WO2003023935A1 A uninterruptible power supply
03/20/2003WO2003023799A2 Uninterruptible transfer switch
03/20/2003WO2002076794A3 Wake up system for electronic component in a vehicle using a bus technology
03/20/2003US20030052644 Multiple energy storage device controller
03/20/2003US20030051476 Power system
03/19/2003EP1294073A2 Backup power module for industrial control and monitoring network
03/19/2003EP1293106A1 Battery monitor and power demand adjuster
03/19/2003EP1078447B1 Uninterruptible power supply with plurality of inverters
03/19/2003CN1103508C Assembling multi-power supply device
03/18/2003US6535405 Power supply device having two AC power inputs
03/18/2003CA2216517C Controller system for a dc power supply
03/13/2003US20030051176 Method and network for providing backup power to networked devices
03/13/2003US20030051175 Backup power module for industrial control and monitoring network
03/13/2003US20030048647 Dual input, hot swappable dual redundant, enhanced N‘AC to DC power system
03/13/2003US20030048626 Lighting system
03/13/2003US20030048006 Uninterruptible power supply
03/13/2003US20030048005 Advanced power distribution system
03/13/2003US20030048004 Uninterruptible transfer switch
03/12/2003EP1290771A1 Buffer circuit
03/12/2003EP1290662A2 System and method for managing uninterruptible power supply systems
03/12/2003CN1402411A Automatic control device for diplex power change-over switch
03/12/2003CN1103132C Power pack of system
03/11/2003US6531837 Control circuit between a port of a microprocessor and an actuator and method of maintaining the momentary state of an actuator during a dip in the supply voltage
03/11/2003US6531790 Generator transfer switching system with multiple generator modes
03/06/2003WO2002093722A3 Method of and apparatus for producing uninterruptible power
03/06/2003WO2002067404A8 Wireless communication device and method of switching power supply
03/06/2003US20030043608 Power circuit in uninterruptible power supply
03/06/2003US20030042798 Multiple power sources control system
03/06/2003US20030042796 Automatic power outlets
03/06/2003US20030042794 Wireless control of power transfer switches for electrical load management
03/06/2003DE20219737U1 Working light has mains supply connection and back up battery lighting unit which can be switched on by the operative
03/06/2003DE20205931U1 Circuit for reliable power supply to users of medical IT network, employs two interlocked switches, operable manually under no-volt conditions
03/04/2003US6528902 Device for controlling power distribution to subsystems
02/2003
02/28/2003CA2400512A1 Compact auxiliary power generator
02/27/2003WO2003017735A1 Bi-voltage emergency lighting system
02/27/2003WO2003017405A2 Systems for and methods of providing primary, auxiliary or backup power to one or more loads
02/27/2003US20030038546 Power management system associated with semiconductor manufacturing facilities
02/27/2003DE20219237U1 Monitoring and control system for a water processing unit that has automatic filter cleaning
02/25/2003US6525666 Power circuit
02/20/2003WO2003015252A2 Appliance control system with power controller
02/20/2003WO2003015236A1 Method for operating power source system and power source system comprising secondary battery
02/20/2003US20030035985 Power system including heat removal unit for providing backup power to one or more loads
02/20/2003US20030035984 Metal fuel cell system for providing backup power to one or more loads
02/20/2003US20030035308 Control system for a power converter and method of controlling operation of a power converter
02/20/2003US20030034693 Power transfer switch assembly
02/20/2003CA2434712A1 Method for operating power source system and power source system comprising secondary battery
02/19/2003EP1284041A1 Uninterruptible power supplies employing fuel cells
02/19/2003CN1398031A Mains
02/18/2003US6522603 Charging device for electronic timepiece, electronic timepiece, and method for controlling charging device
02/18/2003US6522147 LED test switch and mounting assembly
02/17/2003CA2398408A1 Power transfer switch assembly
02/13/2003WO2002027889A3 Method and apparatus for providing an uninterruptible supply of electric power to a critical load
02/13/2003US20030033550 Uninterruptible power supply (UPS) devices monitoring system
02/13/2003US20030030329 Method and structure for measurement of a multiple-power-source device during a test mode
02/13/2003US20030030324 Power distribution apparatus
02/12/2003EP0938812B1 Standby power supply for video display apparatus
02/12/2003EP0842558B1 Method and device for supplying electrical energy, and apparatus provided with such a device
02/12/2003CN2535995Y Drive circuit device of LED lamp
02/11/2003US6518734 System and method of forming capacitor-based electrical energy storage modules
02/06/2003WO2003010877A1 Control system for a power converter and method of controlling operation of a power converter
02/06/2003WO2003010128A2 Perfluoroalkyl-substituted amines, acids, amino acids and thioether acids
02/06/2003US20030026113 Method and apparatus for converting a DC voltage to an AC voltage
02/06/2003US20030025397 System for providing assured power to a critical load
02/06/2003US20030025396 Power supply system
02/06/2003US20030025395 Appliance control system with power controller
02/05/2003CN2534717Y Primary/secondary socket controller
02/05/2003CN1101071C Uninterruption power source
02/04/2003US6515883 Single-stage power converter and an uninterruptible power supply using same
02/04/2003US6515872 Automobile and electric power system controller thereof
01/2003
01/30/2003WO2003009457A2 Method and device for short-circuiting temporary power failures in a matrix converter
01/30/2003US20030023888 Loadshedding uninterruptible power supply
01/30/2003US20030020330 DC ladder bus
01/29/2003EP1280044A2 Network hibernation system
01/28/2003US6512308 Fault tolerant air bag bus system without transformer
01/28/2003US6512305 Method and apparatus having a turbine working in different modes for providing an uninterruptible supply of electric power to a critical load
01/23/2003WO2003007454A2 Dc ladder bus
01/23/2003US20030016548 Ac power supply apparatus and methods providing output control based on estimated instantaneous reactive power
01/23/2003DE4345258C2 Servo-controller with motor and position indicator
01/22/2003EP1277121A2 Bus control module
01/22/2003EP1276643A1 Fault tolerant air bag bus system without transformer
01/22/2003CN1393051A Power supply
01/22/2003CN1392649A Automatic cut-in distributing box of spare power source
01/22/2003CN1099716C Battery continuation apparatus and method thereof
01/21/2003US6510067 System, method and apparatus for protecting consumer electronic devices from brownouts and short duration power outages
01/21/2003US6509657 Battery backup unit system and interface
01/16/2003WO2002049878A3 Method for providing the power supply once an internal combustion engine is switched off
01/16/2003US20030011247 Power supply device
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