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)
09/2008
09/11/2008US20080217998 Renewable energy power systems
09/10/2008EP1968179A2 Clean input UPS with fast rectifier control and improved battery life
09/10/2008EP1966877A1 A power supply with reduced power losses during standby mode
09/10/2008EP1568120A4 Stand-by power supply shutdown at power on
09/10/2008CN201113552Y Constant voltage regulator multiplexing standby system
09/10/2008CN201113551Y Duplicate supply automatic transfer switch switching control electric appliance
09/10/2008CN201113550Y Power supply system possessing redundancy electric power
09/10/2008CN201113549Y Electric power redundancy system
09/10/2008CN201113548Y Back-up power
09/10/2008CN201113547Y Transformer substation intelligent station power utilization system
09/10/2008CN201113546Y Vehicle mounted control electric network
09/10/2008CN201113545Y Power supply controller
09/10/2008CN201113544Y Oil engine switching control system
09/10/2008CN201113512Y Duplicate supply automatic switchover circuit
09/10/2008CN201113480Y Uninterruptive power supply variable frequency speed regulator
09/10/2008CN201113478Y Double back-up power
09/10/2008CN201113467Y Mining working face local fan moving intelligent generating plant
09/10/2008CN201113253Y Mining explosion suppression type double power supply multi-loop combination switch
09/10/2008CN101262145A Uninterruptible power supply, connected to a grid
09/10/2008CN101262144A One-track modulus dual-power conversion switch device
09/10/2008CN101261761A In-vehicle emergency call apparatus
09/09/2008CA2622903A1 Clean input ups with fast rectifier control and improved battery life
09/04/2008WO2008106450A1 Portable power supply
09/04/2008WO2008104026A1 Heat protection system for a heat sensitive device
09/04/2008US20080211682 Uninterruptible power supply controller and method
09/04/2008US20080211479 Threshold detection in back-up power supply systems
09/04/2008US20080211308 Parallel-connected uninterruptible power supply system
09/04/2008DE202008003506U1 Dualstromssystem mit Umschaltungssteuerungsschaltkreis Dual-phase system with switching control circuit
09/03/2008EP1965487A1 Uninterruptible power supply, connected to a grid
09/03/2008EP1965483A1 Circuit for connecting an energy generation unit to the power grid
09/03/2008EP1965480A2 Integrated circuit and method for preserving vehicle's battery charge and protecting trailer load
09/03/2008EP1963137A1 Temporary voltage supply
09/03/2008CN101257223A Backup power system
09/03/2008CN101257222A Mobile area burst stop current failure emergency electric power safeguard system
09/03/2008CN100416972C System for providing assured power to a critical load
09/02/2008US7420295 Power unit for conveyance and conveyance provided with the power unit
09/02/2008US7420294 Smart power switch for broadband communications network
08/2008
08/28/2008WO2008103231A2 Method for reducing quiescent power draw and machine using same
08/28/2008WO2008101974A1 Identification device for an automotive vehicle
08/28/2008US20080203822 Power system for a device
08/28/2008US20080203821 Power system
08/28/2008US20080203820 Backup power system
08/28/2008US20080203819 Energy Storage Device of a Transformer
08/28/2008CA2678878A1 3-phase high-power ups
08/27/2008EP1961099A2 Backup circuit comprising a charge storage device
08/27/2008EP1960260A1 Hybrid propulsion system for a watercraft
08/27/2008CN201107838Y Circuit system of duplicate supply loop automatic switch
08/27/2008CN100414811C Power supply apparatus
08/26/2008US7418314 Methods and apparatus for providing and distributing standby power
08/21/2008WO2008100986A2 'dialysis system with efficient battery back-up'
08/21/2008WO2008100919A2 Method and apparatus for conserving battery power
08/21/2008WO2008100237A2 A smps circuit with multiple ac/dc inputs and application of such circuit to computer power supplies or laptop adapters
08/21/2008WO2008099872A1 Ic module system
08/21/2008WO2008068687A3 Apparatus with rechargeable power supply
08/21/2008US20080197706 3-Phase High Power UPS
08/21/2008US20080197705 System including a microturbine and a high-frequency alternator generating backup power for a telecommunications system
08/21/2008US20080197704 Back-Up Power Supply Systems
08/21/2008US20080196413 Cogeneration system
08/21/2008CA2676772A1 Method and apparatus for conserving battery power
08/20/2008EP1959537A2 Cogeneration system
08/20/2008EP1959536A2 Cogeneration system
08/20/2008EP1959535A2 Cogeneration system
08/20/2008EP1959330A1 Power source connecting circuit device with current transformer
08/20/2008EP1751334B1 Device for managing an electrical power cutoff in an, in particular, yarn transformation textile machine
08/20/2008CN101247052A Electric power for AC-DC-AC station used for electrified railroad
08/20/2008CN100413334C TV set, method for reducing electromagnetic interference in TV set, and electromagnetic interference restraining system
08/20/2008CN100413178C Integrity testing of isolation means in an uninterruptible power supply
08/20/2008CN100413175C Universal battery charger
08/20/2008CN100412754C Power supply voltage generation circuit
08/19/2008US7415621 Power supply system, computer apparatus and maximum power control method
08/14/2008WO2008095988A1 A grid-tie
08/14/2008WO2008014170A3 Efficient auxiliary power supply
08/14/2008US20080191556 Uninterruptible Power Supply for the Back up of Dc Power Source
08/14/2008US20080191552 Power supply device and storage control device
08/13/2008CN101242139A Power modulation method for operation/exit of ultra-high DC single 12-pulse conversion unit
08/13/2008CN101242132A Trigger angle control policy for ultra-high voltage DC startup
08/13/2008CN101242115A Automatic conversion switch appliance
08/13/2008CN101242114A Power feeding system
08/13/2008CN101242113A 电源供应系统 Power Supply
08/13/2008CN101240947A Self-adapting solar energy heat collection molten salt receiver system
08/13/2008CN100410143C Ship
08/12/2008US7411315 Battery communication system
08/12/2008CA2620790A1 Emergency lighting system
08/12/2008CA2246467C Modified receptacle and plug for low voltage dc distribution
08/07/2008WO2008093525A1 Power source system, power supply control method for the power source system, power supply control program for the power source system, and computer-readable recording medium with recorded power supply control program
08/07/2008WO2008073319A3 Dc power system
08/07/2008WO2008068275A3 Device for controlling the mode of operation of an electric circuit in a motor vehicle
08/07/2008US20080188197 Modular System for Connecting Multiple Customer Premises Voice and Data Communications Devices to a T1 Data Line
08/07/2008US20080185914 Redundant power supply with pulse width modulation soft start feature
08/07/2008US20080185913 Power feeding system
08/07/2008DE102008007167A1 Energieversorgungssystem Power supply system
08/06/2008EP1953894A2 Electronic control system for recharging batteries, in particular for emergency lighting lamps.
08/06/2008EP1953893A2 Centralized emergency lighting plant with functionalities integrated with ordinary lighting
08/06/2008EP1952502A1 Telecommunication system incorporating a vanadium redox battery energy storage system
08/06/2008CN201097308Y Intelligent 3-in-1 computer power
08/06/2008CN101237155A UPS dual-channel power supply automatic maintenance control device
08/06/2008CN101237139A Intelligent thunder-prevention device
08/06/2008CN100409702C Method, device and terminal for mobile radio communication
08/06/2008CN100409135C Stabilivolt circuit
08/05/2008US7409564 Digital radiography detector with thermal and power management
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