Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437)
11/2004
11/16/2004US6819576 Power conversion apparatus and methods using balancer circuits
11/16/2004US6819226 Systems and methods for energy storage in land-based telemetry applications
11/16/2004US6819087 Distributed resource (DR) stabilization control for microgrid applications
11/16/2004US6819086 Power supply device for emergency shut down of a wind turbine
11/16/2004US6819012 Flywheel energy storage system
11/11/2004US20040223347 Uninterruptible power supply system
11/11/2004US20040222840 Electrical circuit for selecting a desired power source
11/11/2004DE10316008A1 Verfahren und Vorrichtung zur sicheren Notbeleuchtung von Tunneln Method and apparatus for safe emergency lighting of tunnels
11/10/2004CN2655584Y Electroluminance emergent lamp device
11/09/2004US6816022 Oscillator system and method for starting and stopping an oscillator
11/09/2004US6815935 Power supply
11/09/2004US6815934 Induction generator power supply
11/04/2004WO2004082306A3 System for providing backup power to an electronic device
11/04/2004US20040220829 Distributed system and method for managing communication among healthcare providers, patients and third parties
11/04/2004US20040218379 Concealed Safety Lighting Device
11/04/2004US20040217653 Supply selection circuit with programmable hysteresis
11/04/2004US20040217652 Power supply system and electronic device comprising the same
11/03/2004CN1543036A Intelligent, energy-saving power supply system
11/02/2004US6812591 Power control device with electric double layer capacitor unit cells
11/02/2004US6812587 Continuous power supply with back-up generation
10/2004
10/28/2004WO2004077648A3 Uninterruptible power supplies with converter operation conditioned upon static switch communication and methods of operation thereof
10/28/2004US20040213022 Power factor corrected UPS with improved connection of battery to neutral
10/28/2004US20040212355 Off-line non-step voltage regulation uninterruptible power supply
10/28/2004US20040212253 Uninterruptible power supply having programmable power output
10/27/2004EP1471593A1 Power controller, power control method, information processor, and power control program
10/27/2004CN2652084Y Multifunctional fluorescent tube
10/27/2004CN2652007Y Power supplying system of mobile laboratory
10/27/2004CN1541439A dual input Ac and DC power supply having programmable DC output utilizing secondary buck converter
10/27/2004CN1540836A Method and device for backing up secondary power source
10/27/2004CN1173446C Ups
10/21/2004WO2004090093A1 Culture treating device and automatic culture treating device
10/21/2004US20040208667 Power supply control apparatus and electric device
10/21/2004US20040207404 Power supply, and apparatus and method for operating a power supply
10/21/2004US20040207266 Standby electrical power generation and storage system and method
10/20/2004EP1469585A1 A METHOD OF ESTABLISHING A MASTER−HOST IN MODULES CONNECTING IN PARALLEL
10/20/2004CN1538806A Reliable board mounted power module
10/20/2004CN1538587A AC Adaptor power supply apparatus
10/20/2004CN1172418C Power supply equipment with parallelly connected two PC power supplies
10/19/2004USRE38625 Static switch method and apparatus
10/19/2004US6806678 Battery charger
10/19/2004US6806589 No break electric power transfer system
10/19/2004US6806588 Power controller for a vehicle
10/19/2004US6805469 Concealed safety lighting device
10/14/2004WO2004068324B1 Power supply with integrated dc supplies for external devices and universal cable
10/14/2004US20040203834 Remote radio data communication system with data rate switching
10/14/2004US20040201991 Led illuminator with capability of stable brightness
10/14/2004US20040201984 Electroluminescent lighting device
10/14/2004US20040201931 Configurable multiple power source system
10/14/2004US20040201282 Stable power supply system, operation method thereof, and stable power supply operation program
10/14/2004US20040201278 Charging circuit in uninterruptible power supply system
10/14/2004DE10312933A1 Electronic module for emergency lamps effective, when current supply for normal illumination system has failed, consisting of direct to alternating current (DC/AC) converter with downward transformation characteristic
10/13/2004EP1467465A2 Method and device for safe emergency lighting of tunnels
10/13/2004EP1466377A1 Fuel cell system power control method and system
10/13/2004CN2648682Y Automatic power supply changover switch
10/13/2004CN2648681Y Auxiliary power supply device for large power uninterruption power source equipment
10/13/2004CN1171371C Power supply system with spare AC power source and function against reverse insertion of AC power source
10/13/2004CN1171369C Modular power management system
10/12/2004US6803679 Parallel redundant power system and method for control of the power system
10/12/2004US6803678 Battery communication system
10/12/2004CA2414699C Rechargeable lamp system
10/07/2004US20040196005 Uninterruptible power supply device with circuit for degradation judgment of storage battery
10/07/2004US20040194218 Mattress cavity cushion system
10/06/2004EP1465319A2 Uninterruptible power supply device with circuit for degradation judgment of storage battery
10/06/2004EP1465318A2 Uninterruptible power supply system
10/06/2004CN2647013Y A single live wire fluorescent lamp with emergency handling function
10/06/2004CN1535260A Perfluoroalkyl-substituted amines, acids, amino acids and thioether acids
10/06/2004CN1534846A Non-power cutting power supply system
10/06/2004CN1534843A Intelligent railway signal power source switching module
10/05/2004US6801027 Power conversion in variable load applications
10/05/2004US6801023 DC/DC boost converter and control method therefor
10/05/2004US6801019 AC power generating system
10/05/2004US6801015 Method and circuit arrangement for preventing the stand-by discharge of a battery-powered signal evaluation circuit of a sensor
10/05/2004US6800963 Power controller, power generation system, and control method of power controller
10/05/2004US6800961 Apparatus and method for controlling a power supply
09/2004
09/30/2004US20040189267 DC-DC converter circuit with long holdover time and reduced spatial requirements
09/30/2004US20040189253 AC adapter power supply apparatus
09/30/2004US20040189097 Battery communication system
09/30/2004US20040189094 Uninterruptible power supply apparatus
09/30/2004US20040189008 Magneto-turbine electric charging
09/30/2004DE102004011688A1 Bordinternes Stromversorgungssystem Board Internal power supply system
09/29/2004EP1463190A1 Reliable board mounted power module
09/29/2004EP1463178A2 Power generating device
09/29/2004EP1462813A2 System for detecting defective battery packs
09/29/2004EP1460990A2 Mattress and bedpan cushion system
09/29/2004CN2645323Y Power distribution load observing and control terminal
09/29/2004CN2645322Y Intelligent type power supply automatic transfer switch circuit arrangement
09/29/2004CN1533629A Method and device for short-circuiting temporary power failures in a matrix converter
09/28/2004US6798187 Generator status information display for power transfer switch
09/28/2004CA2350435C Efficient battery transfer circuit
09/28/2004CA2155525C An emergency power system
09/23/2004WO2004082306A2 System for providing backup power to an electronic device
09/23/2004WO2004082110A2 Programmable peripheral power hub module
09/23/2004WO2004082098A1 Dc power supply system and switch
09/23/2004WO2004082097A1 Emergency lighting
09/23/2004WO2004063567A3 Mobile power system
09/23/2004DE10308411A1 Gleichstromwandlerschaltung DC-DC converter circuit
09/23/2004CA2515267A1 System for providing backup power to an electronic device
09/22/2004CN1531762A Back-up battery for cellular telephone
09/22/2004CN1531189A Generator
09/22/2004CN1531165A Uninterrupted power device