| Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437) |
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| 02/04/2004 | CN1472863A Single-deck power supply backup method and backup system |
| 02/04/2004 | CN1472862A Battery driving electronic device |
| 02/03/2004 | US6686547 Relay for a transfer mechanism which transfers power between a utility source and a stand-by generator |
| 02/03/2004 | US6684788 Rotary press control apparatus and method capable of controlling operation in a power failure |
| 01/29/2004 | US20040017824 Modular, portable data processing terminal for use in a radio frequency communication network |
| 01/29/2004 | US20040017181 Power supply control device and method for mobile robot |
| 01/29/2004 | US20040017110 Uninterruptible switching power supply device and method for uninterruptibly switching voltage |
| 01/29/2004 | DE10230313A1 Schaltgerät Switchgear |
| 01/28/2004 | CN1471212A Autoconnected mutual-inductive uninterrupted voltage conversion method and uninterruption switch power source thereof |
| 01/28/2004 | CN1470374A Mixed power supply type injection moulding machine system |
| 01/27/2004 | US6684134 Electrical fault protection system |
| 01/27/2004 | US6683771 Electrical energy distribution system and contactor for such a system |
| 01/22/2004 | US20040012266 Uninterruptible power supply with built-in lamp |
| 01/22/2004 | US20040012265 System and method to control redundant power supplies selection |
| 01/21/2004 | CN2600967Y Control circuit for autoamtic closing intake gate when power cut for sewage disposal system |
| 01/21/2004 | CN1135458C Electronic timer and its charging device and method for controlling said charging device |
| 01/20/2004 | US6681335 System for controlling power plane of a printed circuit board by using a single voltage regulator to control switches during first and second power modes |
| 01/20/2004 | US6680548 Electronic timers using supercapacitors |
| 01/20/2004 | US6680547 Power sharing system including rechargeable power source |
| 01/20/2004 | CA2219293C Power conversion system for bi-directional conversion between hydraulic energy and electrical energy |
| 01/20/2004 | CA2188522C Method and apparatus for transferring between electrical power sources which adaptively blocks transfer until load voltage decays to safe value |
| 01/15/2004 | WO2004004852A1 Gaming machine power fail enhancement |
| 01/15/2004 | US20040010725 Embedded interruptible power supply |
| 01/15/2004 | US20040010649 User-configurable power architecture with hot-pluggable power modules |
| 01/15/2004 | US20040009756 Battery-driven electronic equipment |
| 01/15/2004 | DE20122043U1 System zum Detektieren defekter Batteriesäulen A system for detecting defective battery packs |
| 01/15/2004 | DE10330736A1 Anordnung zur Notstromversorgung von Sicherheitsbeleuchtungsanlagen und Verfahren zum sicheren Betrieb derselben Arrangement for emergency power supply of emergency lighting systems and procedures for the safe operation of the same |
| 01/14/2004 | EP1381136A1 Battery-driven electronic equipment |
| 01/14/2004 | EP1380085A2 Adjustable scalable rack power system and method |
| 01/14/2004 | CN1134881C Power supply device for producing multi-path voltages and apparatus comprising such device |
| 01/13/2004 | US6678538 Power supply method and power supply device for portable telephone |
| 01/13/2004 | US6678173 Power supply apparatus for the reduction of power consumption |
| 01/08/2004 | US20040004402 Dual input DC-to-DC power converter |
| 01/08/2004 | DE10326294A1 Elektrisch angetriebene Bremseinrichtung und Steuervorrichtung dafür Electrically driven brake device and control device therefor |
| 01/07/2004 | EP1378401A1 Electric power supply |
| 01/02/2004 | EP1376814A2 Power supply control circuit |
| 01/02/2004 | EP1374367A2 Uninterruptible power supply systems and methods using rectified ac with current control |
| 01/02/2004 | EP1374366A1 Minimizing standby power in a digital adressable lighting interface |
| 01/02/2004 | EP1373045A1 Electric load management center |
| 01/01/2004 | US20040001322 Uninterrupted power supply |
| 12/31/2003 | WO2004001929A1 System and method of forming capacitor-based electrical energy storage modules |
| 12/31/2003 | WO2004001716A1 Display and power-saving controller |
| 12/31/2003 | CN2596649Y High efficiency energy saving double power automatic switching device |
| 12/31/2003 | CN2596648Y Ring belt type auxiliary power device of portable electric equipment |
| 12/30/2003 | US6671191 Electric power conversion apparatus |
| 12/30/2003 | US6670725 Power apparatus for intermittently powered equipment |
| 12/30/2003 | US6668629 Methods and apparatus for web-enabled engine-generator systems |
| 12/25/2003 | US20030234580 Method to eliminate shipping fuse handling |
| 12/24/2003 | WO2003056991A3 Mattress and bedpan cushion system |
| 12/24/2003 | DE20315806U1 Illumination device has switching device with radio transmitter connected to motion or object sensor, receiver outside detection region that switches on light source on receiving transmitter signal |
| 12/23/2003 | US6668232 Arrangements to detect and respond to disturbances in electrical power systems |
| 12/23/2003 | US6667599 Power supply apparatuses and methods of supplying electrical energy |
| 12/23/2003 | US6666568 Computer light |
| 12/18/2003 | WO2003105310A1 Stable power supply system, operation method thereof, and stable power supply operation program |
| 12/18/2003 | US20030233179 Electrically driven brake device and control apparatus thereof |
| 12/18/2003 | US20030231009 DC backup power supply device and method for diagnosing the same |
| 12/18/2003 | US20030231007 System and method of forming capacitor-based electrical energy storage modules |
| 12/18/2003 | US20030231003 Apparatus and method for providing temporary power |
| 12/18/2003 | US20030230935 Causing operation of load in alternate, reduced peak power mode |
| 12/18/2003 | DE20315384U1 Switching system for use with emergency lighting systems using a monitoring circuit to control a switching relay coupled to different supplies |
| 12/17/2003 | EP1372240A1 Uninterruptible power supply |
| 12/17/2003 | EP1372235A1 Multifunctional electronic energy saving switch |
| 12/11/2003 | WO2003103118A1 Electrical power supply circuit and corresponding method |
| 12/11/2003 | US20030228386 Hybrid power supply type injection molding machine system |
| 12/11/2003 | US20030227785 On-line uninterruptible power supplies with two-relay bypass circuit and methods of operation thereof |
| 12/10/2003 | EP1368730A2 Circuit and method for inputting a start signal for a controller |
| 12/10/2003 | CN2591842Y Double-power source protector for power supply device |
| 12/10/2003 | CN2591841Y Intelligent double-electric power supply changover apparatus |
| 12/09/2003 | US6661678 Power factor corrected UPS with improved connection of battery to neutral and methods of operation thereof |
| 12/09/2003 | US6661669 Uninterrupted power supply |
| 12/09/2003 | US6661116 Battery switching device and emergency alerting system comprising this |
| 12/04/2003 | WO2003030341A3 Induction generator power supply |
| 12/04/2003 | US20030222618 DC backup power supply system |
| 12/04/2003 | US20030222505 Systems and methods for energy storage in land-based telemetry applications |
| 12/03/2003 | EP1366553A1 Integrated uninterruptible power supply enclosure |
| 12/03/2003 | EP1365944A2 Method for providing the power supply once an internal combustion engine is switched off |
| 12/03/2003 | CN1130094C Electronic circuit for portable electronic device |
| 12/02/2003 | US6657416 Control system for stand-by electrical generator |
| 12/02/2003 | US6657321 Direct current uninterruptible power supply method and system |
| 12/02/2003 | US6657320 Integrated flywheel uninterruptible power supply system |
| 12/02/2003 | US6657319 Electric power system interconnection device |
| 11/27/2003 | WO2003098775A1 Improvements to a power backup device for cordless telephones |
| 11/27/2003 | WO2003098770A2 Hybrid power system for continuous reliable power at remote locations |
| 11/27/2003 | WO2003076857A3 A domestic combined heat and power unit |
| 11/27/2003 | US20030220026 Switching power supply unit |
| 11/27/2003 | US20030218839 Control arrangement and isolated power supplies for power electronic system |
| 11/27/2003 | US20030218385 Hybrid power system for continuous reliable power at remote locations |
| 11/26/2003 | EP1364454A1 Mobile power generation system |
| 11/26/2003 | EP1364439A2 An uninterruptible power supply system using a slip-ring, wound-rotor-type induction machine and a method for flywheel energy storage |
| 11/26/2003 | CN2588643Y Spare power switch device for card-selling machine |
| 11/25/2003 | US6654265 Dual input, hot swappable dual redundant, enhanced N+1 AC to DC power system |
| 11/25/2003 | US6653821 System controller and method for monitoring and controlling a plurality of generator sets |
| 11/25/2003 | US6653751 Fault tolerant AC transfer switch |
| 11/25/2003 | US6653749 Portable power supply system and a method for providing electrical power |
| 11/20/2003 | WO2003096508A2 Power supply unit |
| 11/20/2003 | US20030214822 Circuit for ac adapter to reduce power drawn from an ac power source |
| 11/20/2003 | US20030214819 Power supply apparatus for the reduction of power consumption |
| 11/20/2003 | US20030214188 Vehicle auxiliary accessory system |
| 11/19/2003 | EP1363377A2 Electromotive actuator |
| 11/19/2003 | CN1128397C Fault tolerant voltage regulator module circuit for supplying core voltage and cache voltage to intel processor |