Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437)
11/2013
11/27/2013CN103414240A Direct current power supply automatic control device
11/27/2013CN103414239A Gas turbine power plant circulating water MCC power supply switching method and apparatus
11/27/2013CN103414238A Downhole duplex feeding circuit preventing surges from power grid
11/27/2013CN103414237A Lighting power supply system of measuring truck
11/27/2013CN103414110A Ring main unit intelligent control system
11/26/2013CA2471689C Method and apparatus for preventing overloads of power distribution networks
11/21/2013WO2013172818A1 Elevator backup power supply
11/21/2013WO2013128008A3 Control module for an electrical energy accumulator, energy accumulator unit having such a control module, uninterruptible power supply unit and method for operating a control module
11/21/2013DE102012208297A1 Stromversorgungsanordnung mit Phasenwahl für eine Leuchte Power supply arrangement with phase selection for a luminaire
11/20/2013EP2664930A2 Power supply device and image forming apparatus having the same
11/20/2013EP2664053A2 Method and apparatus for providing uninterruptible power
11/20/2013CN203301521U A router containing a standby power supply
11/20/2013CN203301227U Uninterrupted power supply (UPS) automatic switching device
11/20/2013CN203301226U Zero time-delay on-line uninterrupted power converter for electric substation
11/20/2013CN203301225U Control device based on security-section interlocking self-switchover of gas-steam combined unit
11/20/2013CN203301224U Control power supply device of voltage-type three-level frequency converter
11/20/2013CN203301223U Rapid power supply switching device
11/20/2013CN203301222U Desulfurization denitration island intelligence power supply management system possessing inversion module
11/20/2013CN203301221U High voltage high power uninterrupted power supply device
11/20/2013CN203301220U Reserve power supply for returning card of card reader
11/20/2013CN203301219U Fast switching device
11/20/2013CN203301218U Device used for gas turbine power plant circulating water MCC power source switching
11/20/2013CN203301217U Uninterrupted power supply (UPS) providing dc and ac output
11/20/2013CN203301216U Electrolytic power supply cabinet for annealing and pickling system in cold rolling line
11/20/2013CN203301215U Movable-type comprehensive compensation system for low-voltage line
11/20/2013CN203301207U Desulfurization denitration island intelligence power supply management system
11/20/2013CN203299783U USB power supply self-selection circuit used for infrared frame
11/20/2013CN103403996A Energy storer and energy storage system
11/20/2013CN103401410A Power supply combining slow-start circuit, router and double-input-end equipment
11/20/2013CN103401307A Dual power switching control circuit capable of delaying on and off
11/20/2013CN103401306A AC/DC power supply nondelay switching system
11/20/2013CN103401305A Intelligent communication power supply switching networking system with direct current contactor
11/20/2013CN103401304A Intelligent operation power supply switching networking system with direct current contactor
11/20/2013CN103400454A Main-secondary circuit automatic switching and measurement managing method
11/20/2013CN103398202A Intelligent water protection system
11/20/2013CN103394485A Ultrasonic scale preventing and descaling device of C-class anti-explosion double-power module
11/20/2013CN102570574B Wind-light complementary charging device
11/20/2013CN102510122B Multi-power supply control devices and system thereof
11/20/2013CN102299552B Uninterruptedly operated current transformation device
11/20/2013CN101938166B Power supply apparatus
11/19/2013US8587929 High density uninterruptible power supplies and related systems and power distribution units
11/19/2013US8587149 Electronic protection unit for automatic circuit breakers and relative process
11/14/2013WO2013166991A1 Temporary back-up power system and temporary back-up power method
11/14/2013WO2013139773A3 Lamp unit power supply system
11/14/2013US20130300198 Power supply control device, image processing apparatus, and power supply control method
11/14/2013US20130300195 Battery Protection Device and Method for DC Power Supply
11/14/2013DE102004052864B4 Energiesicherungssystem für ein drahtloses Telefonsystem Energy system for a wireless telephone system
11/13/2013CN203289185U Automatic discrimination apparatus for bus short circuit fault of transformer station electric system
11/13/2013CN203289184U Power source device
11/13/2013CN203289183U An intelligent integrated inversion power supply system for a plurality of sets of mobile power sources
11/13/2013CN203289182U Double-channel power supply module and double-channel power supply inversion system
11/13/2013CN203289181U Power supply loop
11/13/2013CN203289180U Time-delay switching circuit
11/13/2013CN203289179U Isolated multipath composite-output uninterrupted power source
11/13/2013CN203289178U Interface circuit and uninterruptible power supply
11/13/2013CN203289177U Uninterruptible power supply system
11/13/2013CN203289176U Transmission line disconnection protection and emergency power supply device
11/13/2013CN203289066U Intelligent controller trip circuit for automatically-reclosing moulded case circuit breaker
11/13/2013CN203289065U Trip circuit for magnetic flux converter
11/13/2013CN103391012A 机柜供电系统 Cabinet Power Supply System
11/13/2013CN103390930A Electric power system control method of fuel cells
11/13/2013CN103390929A Self-adaptive output voltage control system for uninterruptible power supply
11/13/2013CN103390928A Uninterruptible power supply and method for controlling uninterruptible power supply to output waveforms
11/13/2013CN102497007B Power management system of wireless acquisition node
11/13/2013CN102355048B Intelligent dual-power automatic transfer switch and running method
11/13/2013CN102235235B Miniature integrated generator set and power supply control method
11/13/2013CN102047543B Non-isolated charger with bi-polar inputs
11/13/2013CN101989515B Magnetic latching contactor and communication power supply system
11/13/2013CN101926070B Systems for and methods of controlling operation of UPS
11/13/2013CN101657946B 3-phase high power ups
11/12/2013US8581439 Automation devices, systems, architectures, and methods including controllable transfer switches
11/11/2013CA2815488A1 Status monitoring cables for generators
11/07/2013WO2013164625A1 Lighting device
11/07/2013WO2013054164A3 Battery device providing uninterrupted power and electronic devices having said battery device
11/07/2013WO2012137210A3 Multi - input uninterruptible power supply with an ac voltage output
11/07/2013US20130293019 Control arrangement and method for supplying electrical power in an elevator system
11/07/2013US20130293018 Power supply system of electronic device and power supply method thereof
11/07/2013US20130293017 Environmental system and modular power skid for a facility
11/07/2013US20130293015 Power supply system comprising a fuel cell
11/07/2013US20130293014 Power Conversion System
11/07/2013US20130293013 Daisy chain configuration for power converters
11/07/2013DE102012103904A1 Energieversorgungsmodul als Zweitor, Verwendung einer Trenneinrichtung in einem solchen Energieversorgungsmodul und Verfahren zum Betrieb eines solchen Energieversorgungsmoduls Power supply module as a two-port network, use of a separating device in such a power supply module and method of operating such a power supply module
11/06/2013EP2659588A2 A control unit used in household appliances
11/06/2013CN203278389U Single-phase emergency power supply control system
11/06/2013CN203278388U Power supply construction for subway shield door
11/06/2013CN203278387U Automatic change-over switch with phase and frequency detection device
11/06/2013CN203278386U Dual-power automatic change-over switch
11/06/2013CN203278385U Control locking loop used for automatic switch protection apparatus of high voltage power distribution system
11/06/2013CN203278384U Power supply system of vehicle-mounted video terminal
11/06/2013CN203278383U Economical controller of automatic changeover switch
11/06/2013CN203278382U Uninterrupted switching power supply
11/06/2013CN203278381U Mobile emergency direct-current power supply
11/06/2013CN203278380U Emergency power supply control system
11/06/2013CN203278379U Starting system of emergency power-generation vehicle
11/06/2013CN203278378U Single-phase redundant power supply system, power supply, computer device, and controller
11/06/2013CN203278325U Solar LED road lighting system
11/06/2013CN203278230U Compressor frequency conversion driving dual supply system
11/06/2013CN203277204U Novel dual-power vacuum load switch
11/06/2013CN203276458U Electrical fire monitor convenient to charge
11/06/2013CN203274836U Monitoring system for monitoring floating roof of floating roof tank
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