| Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437) |
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| 12/30/2009 | CN201374585Y Undisturbed stability control device |
| 12/30/2009 | CN201374584Y Substation dedicated UPS capable of satisfying 103 conventions |
| 12/30/2009 | CN201374583Y Dual-power automatic change-over switch |
| 12/30/2009 | CN201374571Y Online UPS |
| 12/30/2009 | CN201374266Y Interlocking mechanism for automatic transfer switching equipment |
| 12/30/2009 | CN201374265Y Transmission interlocking mechanism for automatic transfer switching equipment |
| 12/30/2009 | CN101615813A Redundancy standby method of board-level power supply |
| 12/30/2009 | CN100576688C Current converter parallel system and control method therefor |
| 12/30/2009 | CN100576687C Emergency lighting device |
| 12/30/2009 | CA2659976A1 False failure prevention circuit in emergency ballast |
| 12/29/2009 | US7638899 Nested redundant uninterruptible power supply apparatus and methods |
| 12/24/2009 | US20090315402 Ac-dc conversion device |
| 12/24/2009 | US20090315395 Fieldbus system with shared redundancy system |
| 12/23/2009 | WO2009153657A1 Power system |
| 12/23/2009 | WO2009127451A3 Emergency power supply device for a hybrid vehicle |
| 12/23/2009 | WO2009126405A3 Ac and dc uninterruptible online power supplies |
| 12/23/2009 | EP2135349A1 Method for operating a wind energy system in case of overvoltage in the grid |
| 12/23/2009 | CN201369603Y Intelligent type dual-power switching circuit |
| 12/23/2009 | CN201369602Y Alternating-current distribution unit |
| 12/23/2009 | CN201369601Y Automatic switching device for multiple power supply circuits |
| 12/23/2009 | CN201369600Y Handle of double power supply switching device |
| 12/23/2009 | CN201369599Y Double power supply switching device |
| 12/23/2009 | CN201369598Y Direct-current distribution unit |
| 12/23/2009 | CN201369597Y Standby power circuit applied to data protection of embedded system in case of power failure |
| 12/23/2009 | CN201369596Y Emergency power supply device |
| 12/23/2009 | CN201369595Y Multifunctional standby power supply capable of generating power by hand cranking |
| 12/23/2009 | CN201369577Y Power failure protective device and electronic equipment realized thereby |
| 12/23/2009 | CN101610001A Intelligent voltage selection device of digital transformer station |
| 12/23/2009 | CN101610000A Photovoltaic power station with 15KW and below 15KW and commercial power automatic switching circuit |
| 12/23/2009 | CN101609985A Photovoltaic power station with 15 KW and below and commercial power manual switching circuit |
| 12/23/2009 | CN100574045C Method and apparatus for controlling PC automatic change-over |
| 12/23/2009 | CN100574044C Power unit |
| 12/22/2009 | US7635972 Rechargeable powering system in an electricity meter |
| 12/22/2009 | US7635926 Redundant mobile power supply system |
| 12/17/2009 | WO2009149655A1 Power switch device of zero power consumption during standby condition |
| 12/17/2009 | US20090309423 Charging control apparatus and method for controlling the same |
| 12/16/2009 | EP2133977A2 Electric supply circuit of a control unit of a home automation installation |
| 12/16/2009 | EP2132856A1 Pulse width controlled dc-dc converter having pulse width period control for influencing power consumption |
| 12/16/2009 | EP2132854A1 Backpack based system for human electricity generation and use when off the electric grid |
| 12/16/2009 | EP2132759A2 Automatic transfer switch module |
| 12/16/2009 | EP2132060A1 Identification device for an automotive vehicle |
| 12/16/2009 | CN201364545Y Circuit automatically recognizing ATX power supply and AT single power supply and starting normally |
| 12/16/2009 | CN201363899Y Air source heat pump hot water device with emergency standby power supply |
| 12/16/2009 | CN101604867A Method for switching main power supply and backup power supply and switching circuit |
| 12/16/2009 | CN100570987C Auto-switching control method based on EMS for stand-by power source in electric grid |
| 12/16/2009 | CN100570133C Integrated system of communication base station and electric power |
| 12/15/2009 | US7634667 User-configurable power architecture with hot-pluggable power modules |
| 12/15/2009 | US7633181 DC-based data center power architecture |
| 12/15/2009 | CA2385430C Control arrangement and isolated power supplies for power electronic system |
| 12/10/2009 | WO2009148277A2 Apparatus for minimizing standby power of switching-mode power supply |
| 12/10/2009 | US20090306594 Drug-delivery pumps and methods of manufacture |
| 12/09/2009 | CN201360176Y Circuit capable of realizing automatic switching between main power source and standby power source |
| 12/09/2009 | CN201360175Y LED lamp tube power source switching circuit |
| 12/09/2009 | CN201360174Y Quick duplicate supply switching unit |
| 12/09/2009 | CN201360173Y Emergency power supply circuit used during faults of both power supply conversion modules of railway intelligent power supply panel |
| 12/09/2009 | CN201360172Y Power supply adapter capable of cutting off AC power supply |
| 12/09/2009 | CN201359920Y Grounding transformer with adjustable zero-sequence impedance |
| 12/09/2009 | CN101601178A System and method for control line isolation |
| 12/09/2009 | CN101599661A Full high-frequency railway signal intelligent power supply panel without switching contact |
| 12/09/2009 | CN101599660A Method and system for randomly switching alternating current |
| 12/09/2009 | CN101599641A System and method for supplying power to communication equipment through high voltage direct-current |
| 12/09/2009 | CN100568663C Intelligent, energy-saving power supply system |
| 12/03/2009 | WO2009143834A1 System for emergency power supply in case of power grid failure |
| 12/03/2009 | WO2009123741A8 Apparatus, system and method for a ups |
| 12/03/2009 | US20090295228 Power supply with standby power |
| 12/02/2009 | EP2128960A2 Method and arrangement in conjunction with emergency light |
| 12/02/2009 | EP2127510A2 Uninterruptible power distribution systems and methods using distributed power distribution units |
| 12/02/2009 | EP2125464A1 Motor vehicle electric system |
| 12/02/2009 | CN201355579Y Mechanical interlocking mechanism of low-voltage circuit breaker |
| 12/02/2009 | CN201354376Y Electric accident switching device of converter oxygen lance |
| 12/02/2009 | CN101595620A 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 suppl |
| 12/02/2009 | CN101594000A Power supply method and power supply system by using optical network element |
| 12/02/2009 | CN101593999A Automatic switching circuit for supplying power to city and battery |
| 12/02/2009 | CN101593998A Energy-saving contactless quick power supply equipment |
| 12/02/2009 | CN101592304A Intelligent fire emergency lamp with MCU control |
| 12/02/2009 | CN100566076C Equalizer circuit for backup power supply |
| 12/02/2009 | CN100566075C Intrinsically safety type uninterruptible DC voltage stabilizing power source for explosive gas atmosphere |
| 12/02/2009 | CN100566072C Power management system and method |
| 12/02/2009 | CN100564856C Domestic combined heat and power unit |
| 12/01/2009 | US7627378 Battery monitor and power demand adjuster |
| 12/01/2009 | US7626284 Power system |
| 12/01/2009 | US7626283 Alternative alternating current power supply and method of its use |
| 12/01/2009 | CA2448536C Back-up power system |
| 11/26/2009 | US20090289504 Power saving uninterruptible power supply |
| 11/25/2009 | EP2122804A2 A smps circuit with multiple ac/dc inputs and application of such circuit to computer power supplies or laptop adapters |
| 11/25/2009 | EP2122803A2 Portable power supply |
| 11/25/2009 | EP2122802A2 Dc power system |
| 11/25/2009 | EP2122796A2 3-phase high power ups |
| 11/25/2009 | CN201352725Y Emergency power source system |
| 11/25/2009 | CN201352724Y Redundancy power supply device of gamma knife treatment table collimator drive shaft |
| 11/25/2009 | CN201352710Y Abnormal power-off automatic protecting device of locomotive standard operation monitoring detector |
| 11/25/2009 | CN101589532A A device and a method for supplying power to a critical load |
| 11/25/2009 | CN101589531A Storage power supply system, storage device, and their control |
| 11/25/2009 | CN101585462A Elevator control system with standby power supply module |
| 11/25/2009 | CN100563080C Method and apparatus for controlling and switching main and backup power |
| 11/24/2009 | US7622824 Distributed power supply arrangement |
| 11/19/2009 | WO2008100919A3 Method and apparatus for conserving battery power |
| 11/19/2009 | US20090284076 Fault-tolerant battery set and start-up battery module |
| 11/19/2009 | US20090284075 Structure of inverter |
| 11/19/2009 | US20090284074 Inverter |