Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437) |
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10/10/2012 | CN101427441B LED driver circuit |
10/09/2012 | US8283802 Dual column gang outlets for minimizing installation space |
10/04/2012 | WO2012135329A1 System and method for off-line ups |
10/04/2012 | WO2012132151A1 Power-supply feeding system |
10/04/2012 | WO2012131367A1 Lighting device |
10/04/2012 | WO2012130247A1 Redundant power supply architecture |
10/04/2012 | WO2012096927A8 Method and apparatus for providing uninterruptible power |
10/04/2012 | US20120248875 System and method for off-line ups |
10/04/2012 | US20120248874 Method and apparatus for improving the operation of an auxiliary power system of a thermal power plant |
10/04/2012 | US20120248873 Energy storage systems |
10/03/2012 | CN202475007U Pipe laying equipment electric control system |
10/03/2012 | CN202475006U Medium-voltage emergency power supply taking boosting pulse as guarantee for charging |
10/03/2012 | CN202475005U A flame-detector-used power supply cabinet |
10/03/2012 | CN202475004U A cell-management-containing uninterruptible power supply with double DC outputs |
10/03/2012 | CN202475003U Automatic control device for power supply |
10/03/2012 | CN202475002U Intelligent integrated power supply ATS |
10/03/2012 | CN202475001U Controller used for automatic alternation switch |
10/03/2012 | CN202475000U Power supply equipment for high-rise shift dormitory in factory |
10/03/2012 | CN202474999U Boosting and rectifying independent charging type medium-voltage emergency power supply |
10/03/2012 | CN202474998U Full-bridge back-up UPS (uninterrupted power supply) |
10/03/2012 | CN202474997U Special UPS (uninterruptible power system) parallel load system for unparallel operation power for alternating current-direct current integral power supply |
10/03/2012 | CN202474996U Intelligent operation device of environmental protection device |
10/03/2012 | CN202474995U Wind-solar-hybrid maximum power point tracking (MPPT) controller |
10/03/2012 | CN202474993U Direct current regulated power supply for mine |
10/03/2012 | CN202474979U Intelligent domestic appliance emergency power system |
10/03/2012 | CN202474915U LED fluorescent lamp emergency power supply |
10/03/2012 | CN202474893U Novel wind and solar hybrid energy supply system |
10/03/2012 | CN202474887U Electric vehicle charge station control circuit system supplying solar power and commercial power complementarily |
10/03/2012 | CN202471828U Voltage sampling circuit suitable for dual-power automatic transfer switch and controller |
10/03/2012 | CN202470207U Wind and light complementary power generation geothermal heating system |
10/03/2012 | CN202467369U Remote control electric roller shutter door AC (alternating current) motor control circuit with automatic locking function |
10/03/2012 | CN202464135U Forest fireproofing unmanned aerial vehicle |
10/03/2012 | CN102710829A Mobile terminal and battery switching method thereof |
10/03/2012 | CN102710028A Cable theft-proof monitoring system based on passive carrier communication |
10/03/2012 | CN102710011A Power over Ethernet (POE) device capable of supplying power uninterruptedly |
10/03/2012 | CN102710010A Power supply equipment |
10/03/2012 | CN102710009A Design method for supplying power to core data center |
10/03/2012 | CN102710008A Three-bus four-section standby power automatic operation device self-adaption in service and out of service control method |
10/03/2012 | CN102710007A Double-power-supply system based on balance bridge arm |
10/03/2012 | CN102710006A Double-power supply system with balance bridge arm |
10/03/2012 | CN102709988A Energy-saving power supply |
10/03/2012 | CN102709903A Method for improving security of high voltage direct current power supply system |
10/03/2012 | CN102706392A Dam observation instrument with power supply of wind-light compensation power-generating system |
10/03/2012 | CN102705159A Method and device for safely controlling blade withdrawing |
10/03/2012 | CN102696533A Solar fish tank aerating device |
10/03/2012 | CN102075005B Processing method for 110KV zone automatic standby power switching action on basis of EMS (Engine Management System) system |
10/03/2012 | CN101969226B Automatic switching dual-voltage input power supply for massage armchair |
10/03/2012 | CN101924392B Bipolar automatic power control method of high-voltage direct-current transmission |
10/03/2012 | CN101917020B Lift energy feedback, reactive compensation and switched-off emergency running method and system |
10/02/2012 | US8278779 System and method for providing redundant power to a device |
09/27/2012 | US20120242150 Power supply system, control device of power supply system, operation method of power supply system, and control method of power supply system |
09/27/2012 | US20120242145 Automatic transfer switch |
09/27/2012 | DE19651612B4 Elektronische Schaltung zur Spannungsversorgung An electronic circuit for power supply |
09/26/2012 | EP2503666A2 Power supply system for an electrical drive of a marine vessel |
09/26/2012 | EP2503146A1 Method and arrangement for controlling an operation of an electric energy production facility during a disconnection to a utility grid. |
09/26/2012 | CN202455397U Online monitoring automatic data acquisition and transmission control system |
09/26/2012 | CN202455153U Generator room distribution type backup direct current power supply system |
09/26/2012 | CN202455152U Multifunctional inverter circuit |
09/26/2012 | CN202455151U Power supply system of supercapacitor electric vehicle based on radio frequency identification (RFID) |
09/26/2012 | CN202455150U Photovoltaic power generation system |
09/26/2012 | CN202455149U Power supply system for supplying electronic equipment and frame power supply |
09/26/2012 | CN202455148U Machine room distributed back-up alternating-current power supply system |
09/26/2012 | CN202455147U Switching device for frequency conversion controllers |
09/26/2012 | CN202455146U Distributed power supply system for machine room |
09/26/2012 | CN202455145U Wind-light complementary water pump energy control system |
09/26/2012 | CN202455144U Intelligent controller of wind and light complemented power generating system |
09/26/2012 | CN202455143U Transformer substation telesignalisation uploading emergency device |
09/26/2012 | CN202455142U 便携式动力电源箱 Portable power supply box |
09/26/2012 | CN202455068U No-breakpoint operation power-saving device |
09/26/2012 | CN102694657A Switching method of home access gateway with spare electricity |
09/26/2012 | CN102694415A Vehicle multimedia power supply control system |
09/26/2012 | CN102694414A Gapless automatic switching device for intelligent dual direct-current power supply |
09/26/2012 | CN102694413A UPS (uninterrupted power supply) circuit and control method thereof |
09/26/2012 | CN102694412A Intelligent-simulation-type IPQC (in-process quality control) electric control (power distribution) cabinet |
09/26/2012 | CN102694396A Electronic device |
09/26/2012 | CN102694393A Controller for switching grid connection photovoltaic power generation system and off-grid photovoltaic power generation system |
09/26/2012 | CN102691496A Safety control method for well logging system |
09/26/2012 | CN101976880B Intelligent device for voltage dip protection |
09/26/2012 | CN101383239B Chamber type automatic duplicate supply converting switch |
09/26/2012 | CN101043145B Ups systems having multiple operation modes and methods of operating same |
09/25/2012 | US8274175 Method and arrangement in conjunction with emergency light |
09/20/2012 | WO2012123838A1 Domestic appliance having a stand-by mode and method for operating such a domestic appliance |
09/20/2012 | WO2012123139A2 Energy store and energy storage system |
09/20/2012 | WO2012099957A8 Apparatus and method for providing uninterruptible power |
09/20/2012 | US20120236455 Power distribution system for building and protection method for main line thereof |
09/20/2012 | US20120235492 Power supply system |
09/20/2012 | US20120235491 Prioritization circuit and electric power supply system |
09/20/2012 | US20120235490 Electric power supply apparatus of electric apparatus |
09/20/2012 | US20120235489 Electronic apparatus and power supply control method |
09/20/2012 | US20120235488 Power converter |
09/20/2012 | US20120235487 Grid backfeed prevention system |
09/20/2012 | US20120235486 Photovoltaic inverter and method for controlling photovoltaic inverter |
09/20/2012 | DE102011005563A1 Method for performing switching between power input and redundant power input during e.g. occurrence of short circuit current, involves delaying switching-on of redundant power input in dependence of time course of load current |
09/19/2012 | CN202444415U Inverter power supply module of intelligent integrated power supply system |
09/19/2012 | CN202444332U On-line power supply device utilizing high voltage power transmission conducting wire |
09/19/2012 | CN202444318U Multi-source intelligent power supply and distribution device |
09/19/2012 | CN202444317U Control circuit for power supply of bacterium culture room constant temperature control system |
09/19/2012 | CN202444316U System for replacing battery of intelligent mobile phone in standby state |
09/19/2012 | CN202444315U Double alternating-current input conversion controller |
09/19/2012 | CN202444314U Air-conditioning bus air-exchange fan dual-path power supply automatic control system |