| Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437) |
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| 05/13/2009 | CN201238208Y Automatic switchover circuit between commercial power and battery power supply |
| 05/13/2009 | CN201238207Y Power supply with low-standby power consumption |
| 05/13/2009 | CN201238206Y Duplicate-supply intelligent controller for transformer |
| 05/13/2009 | CN201238200Y Intelligent generator set for uninterrupted power supply |
| 05/13/2009 | CN201238154Y Mining power distribution and multipath control integrated switch |
| 05/13/2009 | CN101431256A Power-off protection apparatus |
| 05/13/2009 | CN101431237A Non-cabinet power supply system based on intelligent module |
| 05/13/2009 | CN101431218A Intelligent duplicate supply switching device |
| 05/13/2009 | CN101430359A Test switch simulation apparatus for automatic standby power switch equipment |
| 05/13/2009 | CN100488002C Frequency converter for a motor vehicle |
| 05/12/2009 | US7531922 Method and apparatus for using lighting to perform facility-wide power factor correction dimming and remote functions and to communicate with a building control system over a power line communications method(s) which can be programmed after manufacture |
| 05/12/2009 | US7531919 Multiple generator loadcenter and method of distributing power from multiple generators |
| 05/12/2009 | US7531918 Hot insertion and extraction of power supply module |
| 05/12/2009 | US7531917 Mobile power supply |
| 05/07/2009 | WO2009058054A1 A backup power supply arrangement to a deployment circuit for triggering the activation of an occupant restraint system |
| 05/07/2009 | WO2009057979A2 Static transfer switch device, power supply apparatus using the switch device and switching method thereof |
| 05/07/2009 | WO2009056084A1 Lifting magnet and method for emergency power supply |
| 05/06/2009 | CN201234162Y Intelligent auxiliary electric power fast switching apparatus |
| 05/06/2009 | CN201234161Y Seamless switching unit for DC electric power and standby electric power |
| 05/06/2009 | CN201234147Y Electric power safeguard apparatus for distribution control system |
| 05/06/2009 | CN201234136Y Dual power source electricity supply system |
| 05/06/2009 | CN101427442A Battery circuit in an emergency light device |
| 05/06/2009 | CN101427441A LED driver circuit |
| 05/06/2009 | CN101427440A Charging circuit for emergency light |
| 05/06/2009 | CN101427439A Emergency lighting device for operating a light source, in particular an LED |
| 05/06/2009 | CN101425685A Internal bridge connecting and protection implementing method for linkage standby electricity supply mode |
| 05/06/2009 | CN100486076C Method and device for switching supply power and protecting batteries |
| 05/05/2009 | CA2476909C Modular ac voltage supply and algorithm for controlling the same |
| 04/30/2009 | WO2009055134A1 Battery and power management for industrial inspection handset |
| 04/30/2009 | DE10240425B4 Schaltwandler mit einem separaten Transformator zur Sicherung des Standby-Betriebs Switching converter having a separate transformer for securing the standby operation |
| 04/29/2009 | CN201230228Y Dual power supply converting switch |
| 04/29/2009 | CN201230227Y AC/DC bi-purpose high pressure cleaning machine |
| 04/29/2009 | CN201230199Y Power-down protection circuit |
| 04/29/2009 | CN201229892Y Intelligent high voltage dual power supply converting switch |
| 04/29/2009 | CN201229891Y Intelligent high voltage dual power supply converting switch |
| 04/29/2009 | CN201229880Y Chamber type automatic duplicate supply converting switch |
| 04/29/2009 | CN101421898A Emergency power system using fuel cell, and distribution panel |
| 04/29/2009 | CN100483895C Highly intelligent dual-power automatic switching device |
| 04/29/2009 | CN100483894C Uninterruptible power supply system, voltage regulator and operating methods employing controlled ferroresonant transformer circuits |
| 04/29/2009 | CN100483893C Spare power supply system |
| 04/28/2009 | US7525217 Rectifier-super capacitor device for use in a power system for a telecommunication facility |
| 04/23/2009 | WO2009010949A3 Device, system and method for charger switch adaptor |
| 04/23/2009 | DE102007050455A1 Uninterrupted power supply for telecommunication device, has switch switching one set of cells to another set of cells over consumer busbar when voltage falls below given threshold value by unloading former set of cells |
| 04/22/2009 | EP2051379A1 Intelligent home automation system providing power saving In standby mode |
| 04/22/2009 | EP2051349A1 Device for guaranteeing the power supply of electric appliances |
| 04/22/2009 | CN201226498Y Four-bridge-arm electric power inverter with on-line two-machine heat backup function |
| 04/22/2009 | CN201226492Y DC voltage-boosting and step-down system with on-line multiple heat backup function |
| 04/22/2009 | CN201226456Y Automatic switchover line for 15KV and less photovoltaic power station and commercial power |
| 04/22/2009 | CN101414762A Method, apparatus and system for power-off protection |
| 04/22/2009 | CN100481671C Battery charger |
| 04/21/2009 | US7521823 Uninterruptible power supply |
| 04/21/2009 | US7521822 Protection techniques for a back-up electric power system |
| 04/16/2009 | WO2007142656A3 Data center uninterruptible power distribution architecture |
| 04/16/2009 | DE102007049397A1 Operating circuit for supplying direct current to lamp e.g. LED, of emergency lighting device, has regulating and control unit selectively controlling inverter to lock potential-higher switch |
| 04/15/2009 | EP2048756A2 Uninterruptible power supply |
| 04/15/2009 | CN201222717Y Flame-proof and essential safety type duplicate-supply variable-frequency control device for coal mine fan |
| 04/15/2009 | CN201222664Y Power supply equipped with system switching circuit |
| 04/15/2009 | CN201222663Y Portable power supply |
| 04/15/2009 | CN201222653Y Manual switching line for 15KW or less photovoltaic power station and commercial power |
| 04/15/2009 | CN201222296Y Electric force aerial conductor anti-theft alarm |
| 04/15/2009 | CN101409526A Elevator system and accumulator unit |
| 04/15/2009 | CN101409458A Power adapter capable of switching off AC power supply |
| 04/15/2009 | CN100479305C Protection circuit enabling a load to withstand a transient power supply failure |
| 04/15/2009 | CN100479295C Synchronized switching controller and its control for parallel uninterrupted power supply |
| 04/15/2009 | CN100479294C Electronic device having path of power supplied to display part switched according to whether external power is supplied |
| 04/15/2009 | CN100478841C Providing power supply to computer |
| 04/14/2009 | US7519909 Uninterruptible power supply (UPS) devices monitoring system |
| 04/14/2009 | US7518267 Power adapter for a remote device |
| 04/14/2009 | US7518265 On-demand uninterruptible power supply |
| 04/09/2009 | WO2009010246A3 Method and apparatus for controlling a printing press in case of a fault or outage of the power supply system |
| 04/09/2009 | WO2006105294A3 Power supply and related systems and methods |
| 04/09/2009 | US20090091190 Batteryless Starter for ups |
| 04/08/2009 | EP2044670A1 Generator apparatus with active load dump protection |
| 04/08/2009 | CN201219210Y Uninterrupted power supply control system of AC generator |
| 04/08/2009 | CN101405825A Electric power supply system and correlative method |
| 04/08/2009 | CN101404417A Uninterruptible power supply |
| 04/08/2009 | CN101404410A Green energy resource and network-electricity parallel operation method |
| 04/08/2009 | CN100477464C Power supply |
| 04/07/2009 | US7514817 Converting device with power factor correcting and dc/dc converting functions |
| 04/02/2009 | WO2009023426A3 Input and output power modules configured to provide selective power to an uninterruptible power supply |
| 04/02/2009 | WO2008150256A8 Gen-set control system having proactive load relief |
| 04/02/2009 | DE102007043416A1 Notbeleuchtungsverfahren und -system Emergency lighting method and system |
| 04/02/2009 | DE102004044469B4 Vorrichtung zum Starten einer Brennkraftmaschine eines Kraftfahrzeugs An apparatus for starting an internal combustion engine of a motor vehicle |
| 04/01/2009 | EP2041462A1 An apparatus for operating controllable installation means |
| 04/01/2009 | CN201215898Y Backup auto-activating device having remote auto-activating function |
| 04/01/2009 | CN101399463A Intelligent signal sampling device by using data interaction of dual micro processor |
| 04/01/2009 | CN101399451A Energy cut protection device for solar automatically tracking system |
| 04/01/2009 | CN101399446A Large power output machine with double electric machinery |
| 04/01/2009 | CN100474737C Power supply system with improved supply quality |
| 04/01/2009 | CN100474736C Device for supplying uninterruptible power |
| 03/26/2009 | WO2009036650A1 Dual-purpose intelligent lamp |
| 03/26/2009 | WO2009011562A3 Emergency light adapter |
| 03/26/2009 | US20090082913 Method and apparatus for preventing an unauthorized flight of an aircraft |
| 03/26/2009 | US20090079266 Electrical Power Distribution System and Method Thereof |
| 03/25/2009 | EP2040362A1 Power supply apparatus |
| 03/25/2009 | CN201213222Y Rear stage working circuit protecting device for dual path electric power supplying system |
| 03/25/2009 | CN101395782A Power supply assembly |
| 03/25/2009 | CN101394097A Uninterrupted power supply system and control method thereof |
| 03/25/2009 | CN101394092A Separate network and method for operating a separate network |
| 03/25/2009 | CN101393817A Chamber type intelligent duplicate power supply converting switch |