Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437)
03/2013
03/27/2013CN103001314A Automatic switching device for equipment power supply
03/27/2013CN103001313A Off-line uninterrupted power system
03/27/2013CN103001312A Quick switching device of duplicate power supply
03/27/2013CN103001311A Energy-storage emergency direct- and alternating-current power supply system
03/27/2013CN103001310A Photovoltaic power generation and urban power grid parallel power supply switching device
03/27/2013CN103001309A Cold starting circuit of UPS (uninterrupted power supply)
03/27/2013CN103001308A Ups (uninterrupted power supply) power supply equipment for preventing power disturbance in safety monitoring system
03/27/2013CN103001307A Renewable energy power supply system and renewable energy power supply method
03/27/2013CN103001289A Solar energy storage power generation system
03/27/2013CN103001254A Alternating current and direct current hybrid micro-grid system
03/27/2013CN103001253A Power supply system of photovoltaic inverter suitable for lower voltage ride-through requirement and power supply method thereof
03/27/2013CN103001228A Secondary power supply device and secondary power supply method for prolonging working time of primary load
03/27/2013CN102991363A Storage battery and pantograph traced power supply system for urban rail vehicle
03/27/2013CN102264270B Household appliance with demonstration mode function
03/27/2013CN102082461B Power supply switching device and method as well as projection device applying power supply switching device
03/27/2013CN101888114B Multifunctional power supply of vehicular automotive electronic device
03/27/2013CN101854077B Nested redundant uninterruptible power supply apparatus and methods
03/26/2013US8405247 Method and apparatus for control of fault-induced delayed voltage recovery (FIDVR) with photovoltaic and other inverter-based devices
03/26/2013CA2653778C Data center uninterruptible power distribution architecture
03/21/2013WO2013038496A1 Power supply system
03/21/2013WO2012116378A3 Power system and method for operating a power system
03/21/2013US20130069504 Modular ups
03/21/2013US20130069436 Apparatus and method for controlling power off in a mobile terminal
03/21/2013US20130069435 Pre-Stage Boost Device for UPS
03/21/2013US20130069434 Parallel control and protection for ups
03/21/2013US20130069433 Cell site power system management, including battery circuit management
03/21/2013US20130069432 Parallel control and protection for ups
03/21/2013US20130069429 Battery managing apparatus, battery pack, and energy storage system
03/21/2013DE112011101884T5 Leistungsverteilungssystem mit Prioritätslaststeuerung Power distribution system with priority load control
03/20/2013EP2571138A1 Electric power supply system
03/20/2013EP2569847A1 Uninterruptible power supply systems and methods using isolated interface for variably available power source
03/20/2013EP2569846A2 Uniterruptible power supply systems and methods supporting high-efficiency bypassed operation with a variably available power source
03/20/2013EP2569845A2 Systems and methods for uninterruptible power supply control
03/20/2013EP2569841A2 Uninterruptiple power supply systems and methods supporting load balancing
03/20/2013CN202818121U Frequency converter, and wind and light energy complementation power generation system
03/20/2013CN202818093U Negative-voltage power supply generation circuit
03/20/2013CN202817901U Intelligent micro electrical network distribution system
03/20/2013CN202817895U Intelligent control system for power generation equipment
03/20/2013CN202817894U Emergency power supply device for corridor ONU equipment
03/20/2013CN202817893U Single-coil dual power supply automatic switching device
03/20/2013CN202817892U Double power switching circuit of inverter welding machine
03/20/2013CN202817891U Medical power supply device
03/20/2013CN202817890U Alternating-current double-power supply static electronic switching device
03/20/2013CN202817889U Vehicle-borne main/standby power supply switching circuit
03/20/2013CN202817888U Standby uninterruptible power supply non-delay synchronous switching circuit
03/20/2013CN202817887U Master-slave intelligent type dual supply rapid path changing device
03/20/2013CN202817886U Uninterruptible power source
03/20/2013CN202817885U Switching apparatus between dual supply systems for isolated network operation
03/20/2013CN202817884U Uninterruptible powered power supply device
03/20/2013CN202817883U Complementarily-powered bedroom centrifuge
03/20/2013CN202817882U Emergency power supply device with charging circuit for household ONU equipment
03/20/2013CN202817881U Emergency power supply device for household ONU equipment
03/20/2013CN202817880U Emergency power supply device for multipurpose household ONU and USB equipment
03/20/2013CN202817879U Uninterrupted power source control system based on DSP
03/20/2013CN202817878U Power source switching and supplying device used for AC screen for communication
03/20/2013CN202817877U Solar energy and commercial power complementation controller for street lamp illumination
03/20/2013CN202817876U Battery device for an uninterrupted power supply and electronic device with the same
03/20/2013CN202817875U Improved emergency lighting switching device
03/20/2013CN202817874U Uninterruptible power supply (UPS) redundant system
03/20/2013CN202817873U Generator set control system having monitoring function
03/20/2013CN202817869U Power storage and generation system device
03/20/2013CN202817863U Miniature direct current power supply
03/20/2013CN202817861U A high-voltage circuit breaker control device with electric energy storage
03/20/2013CN202817850U UPS power supply having double-bus charging circuit
03/20/2013CN202817843U Lithium battery charging circuit which can be charged while using and is used on laser surveying and mapping instrument
03/20/2013CN202817816U Power supply apparatus employing wind power, solar energy, and diesel for complementation
03/20/2013CN202817796U Fuel cell stand-by power supply system with hydrogen circulating apparatus
03/20/2013CN202814559U Dual-power supply sensor device with self energy collection for main power supply
03/20/2013CN202810940U Power supply system using gas power station as coal mine emergency power supply point
03/20/2013CN102983623A Emergency power supply auto switch over intertripping load method
03/20/2013CN102983622A Power supply system of automotive air conditioner
03/20/2013CN102983621A Ecological residence electric energy system and power supply control method
03/20/2013CN102983620A Auxiliary convertor and parallel connection control method thereof
03/20/2013CN102983619A Uninterruptible power device and power supply method thereof
03/20/2013CN102983604A Photovoltaic and fuel cell combined generating system
03/20/2013CN102983547A Uninterruptible power supply type leakage test comprehensive protection system
03/20/2013CN102980047A Solar dual-purpose high-power flashlight with mains supply
03/20/2013CN102195338B Power module in power failure
03/20/2013CN102074998B Protection circuit and Ethernet electrical equipment
03/20/2013CN102044989B Hybrid energy power supply system and method based on solar system
03/20/2013CN101471579B 电源切换电路 Power switching circuit
03/19/2013USRE44084 Control system for stand-by electrical generator
03/14/2013US20130063073 Battery exchange, recharge and recycle apparatus, system and method
03/14/2013US20130062969 Compact and voltage stable automatic change over switch
03/14/2013US20130062951 Battery-backed power interface transformer for low-power devices
03/14/2013US20130062949 Smooth switching device and method for double power supplies
03/14/2013US20130062943 Load shedding circuit for ram air turbines
03/13/2013EP2568570A1 Illumination device
03/13/2013EP2567441A1 Wireless lighting devices and grid-shifting applications
03/13/2013CN202798449U Power transformation output structure
03/13/2013CN202798137U Photovoltaic and super-capacitor AC (alternating current)-DC (direct current) integrated power supply for mobile substation
03/13/2013CN202798136U Switching circuit of power supplies of transformer and large-power diesel generator
03/13/2013CN202798135U Double-T inner bridge substation spare power automatic switching device corresponding operation model self-adaptive device
03/13/2013CN202798134U PT relay switching device
03/13/2013CN202798133U Transformer station DC operation dual power intelligent seamless switching device
03/13/2013CN202798132U Solar uninterruptible power supply system based on single program initiation (SPI)
03/13/2013CN202798131U Integrated multi-path power supply system
03/13/2013CN202798130U Uninterruptible power supply and battery management system and uninterruptible power supply system
03/13/2013CN202798129U Anti-flashover backup power supply system
03/13/2013CN202798128U Independent photovoltaic power supply system with self-starting function
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