| Patents for H02J 9 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting (16,437) |
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| 06/02/2004 | EP1424624A2 Method and apparatus for setting the operational mode of electronic devices |
| 06/02/2004 | CN1502158A Electrical system for a ship |
| 06/02/2004 | CN1501565A Sine wave generation circuit and uninterruptible power supply system using the same |
| 06/02/2004 | CN1501212A Power controlling system |
| 06/01/2004 | US6744648 Active backup power supply with power factor correction and output voltage regulation |
| 06/01/2004 | US6744152 Implantable cardioverter defibrillator with switchable power source and patient warning system cardiac device |
| 05/27/2004 | WO2004045044A1 A plant for the exploitation of renewable energy sources in combination with traditional energy sources, particularly for the heating and cooling of dwellings |
| 05/27/2004 | WO2004045040A2 System for generating electric power |
| 05/27/2004 | US20040103329 Power management system |
| 05/27/2004 | US20040100807 Dual input AC and DC power supply having a programmable DC output utilizing single-loop optical feedback |
| 05/27/2004 | US20040100229 Emergency power supply device |
| 05/26/2004 | EP1198876B1 System for controlling the delivery of power to dc computer components |
| 05/26/2004 | CN1151595C Power supply device with stand-by AC function |
| 05/25/2004 | US6741065 Electric device and method for charging and discharging battery unit of the same |
| 05/21/2004 | WO2004042908A1 Uninterrupted power supply with power-factor correcting bypass mode |
| 05/21/2004 | WO2004040956A2 Apparatus for providing high quality power |
| 05/21/2004 | WO2003092025B1 Consumer unit |
| 05/21/2004 | CA2504440A1 Uninterrupted power supply with power-factor correcting bypass mode |
| 05/21/2004 | CA2504366A1 Apparatus for providing high quality power |
| 05/20/2004 | US20040095249 Method and apparatus for the continuous performance monitoring of a lead acid battery system |
| 05/20/2004 | US20040095091 AC/DC hybrid power system |
| 05/20/2004 | US20040095022 Proton exchange membrane based power system for a telecommunication facility |
| 05/20/2004 | US20040094963 Power system for a telecommunication facility |
| 05/19/2004 | EP1420332A2 Power controlling system |
| 05/19/2004 | CN1498439A Power controller, power control method, information processor and power control program |
| 05/18/2004 | US6738276 Uninterrupted power supply without power loss |
| 05/18/2004 | US6738244 Annunciator |
| 05/18/2004 | US6737832 Power supply apparatus |
| 05/18/2004 | US6737762 Generator with DC boost for uninterruptible power supply system or for enhanced load pickup |
| 05/15/2004 | CA2424694A1 Power system for a telecommunication facility |
| 05/13/2004 | WO2004030189A8 Power conversion in variable load applications |
| 05/13/2004 | WO2003065493B1 Power controller, power control method, information processor, and power control program |
| 05/13/2004 | US20040093363 Portable computerized data communication device |
| 05/13/2004 | US20040093125 Method and apparatus for power managment control of a compressor-based appliance that reduces electrical power consumption of an appliance |
| 05/12/2004 | EP1418656A2 Mobile stand alone unit for providing electrical energy |
| 05/12/2004 | EP1356569B1 High-security electric power supply device |
| 05/12/2004 | CN2615948Y Thermal connecting & disconnecting secondary power supply for electric system automation equipment |
| 05/12/2004 | CN1496600A Uninterruptible power supply |
| 05/11/2004 | US6735096 Uninterruptible DC power system |
| 05/11/2004 | US6734577 Vehicle auxiliary accessory system |
| 05/11/2004 | US6732838 Power supply for ac elevator |
| 05/11/2004 | CA2314559C Power supply system switching device and method of switching between power supply systems |
| 05/06/2004 | WO2004038892A2 Hybrid variable speed generator/uninterruptible power supply power converter |
| 05/06/2004 | US20040088623 Digital signal voting scheme |
| 05/06/2004 | US20040085793 Programmable power converter |
| 05/06/2004 | US20040085785 Power supply apparatus and methods with power-factor correcting bypass mode |
| 05/06/2004 | US20040084968 Sine wave generation circuit and uninterruptible power supply system using the same |
| 05/06/2004 | US20040084967 Combined ac-dc to dc converter |
| 05/06/2004 | US20040084966 Simple automated source switch |
| 05/06/2004 | US20040084965 Hybrid variable speed generator/uninterruptible power supply power converter |
| 05/05/2004 | CN2614396Y Three-phase UPS made up of frequency-converter and accumulator |
| 05/05/2004 | CN1148856C Automatic switch equipment for power supply |
| 05/04/2004 | US6731484 Integrated high voltage transient surge suppression with automatic transfer switch for alternate source of electricity |
| 05/04/2004 | US6731023 Backup power supply for restraint control module |
| 04/29/2004 | US20040080215 System and method for brownout protection of a FET based battery switch |
| 04/29/2004 | US20040080212 Dual voltage power supply for a controlling current consumption of a controller during sleep mode |
| 04/29/2004 | DE202004002597U1 Battery supported emergency power supply for computer and its peripherals with power supply casing dimensioned to fit into cable conduit |
| 04/29/2004 | DE10296295T5 System zum Bereitstellen einer sicheren Energieversorgung für eine kritische Last A system for providing a secure energy supply for critical load |
| 04/28/2004 | EP1414126A1 Method for operating power source system and power source system comprising secondary battery |
| 04/28/2004 | EP1412321A2 Perfluoroalkyl-substituted amines, acids, amino acids and thioether acids |
| 04/28/2004 | EP1057236B1 Electric power supply system for simplifying the architecture of power and air conditioning installations |
| 04/28/2004 | CN2613796Y Monitor and control cabinet for gate |
| 04/27/2004 | US6728614 Electrically driven brake device and control apparatus thereof |
| 04/27/2004 | US6728119 Method and apparatus for converting a DC voltage to an AC voltage |
| 04/27/2004 | US6727603 Automatic mode transitions for microturbine generating systems |
| 04/27/2004 | US6725485 Mattress and bedpan cushion system |
| 04/22/2004 | WO1990016033A8 Hand-held data capture system with interchangeable modules |
| 04/22/2004 | US20040076148 Method and apparatus for automatic transfer switch |
| 04/22/2004 | US20040076062 Electronic apparatus and power supplying method |
| 04/22/2004 | US20040075344 Means for providing intelligence to multiple electro-mechanical point of use transfer switches |
| 04/22/2004 | US20040075343 System and method for power load management |
| 04/22/2004 | DE19882471T5 Nichtunterbrechbares Stromversorgungssystem Nichtunterbrechbares power system |
| 04/22/2004 | DE10296400T5 Aufwecksystem für auf einem Fahrzeug unterstützte elektronische Komponenten Aufwecksystem on a vehicle for supporting electronic components |
| 04/22/2004 | DE10251833B3 Mobile autonomous electrical energy generation unit has intermediate transmission with switched couplings allowing one or both of 2 IC engines to be coupled to one or both of 2 electrical generators |
| 04/22/2004 | DE10245309A1 Line network for back-up current supply for emergency lighting, has distributor provided with overcurrent protection fuses between current supply line and end current circuits |
| 04/21/2004 | EP1411617A1 Control for a group of lighting fixtures |
| 04/21/2004 | EP1411616A2 Electronic apparatus and power supplying method |
| 04/21/2004 | EP1410490A1 Control system for a power converter and method of controlling operation of a power converter |
| 04/21/2004 | EP1409919A1 Improvements in lamps, luminaires and lighting systems |
| 04/21/2004 | CN1491473A Method for operating power source system and power source system comprising secondary battery |
| 04/21/2004 | CN1490914A Apparatus for maintaining voltage in AC voltage power supply net and operational method thereof |
| 04/21/2004 | CN1490913A Power supplier with spark preventive function and method thereof |
| 04/15/2004 | WO2004032578A1 Improved lighting means capable of being mounted to a fan |
| 04/15/2004 | WO2004031928A1 Power supply system and electronic device comprising the same |
| 04/15/2004 | US20040070518 Emergency vehicular traffic signal control |
| 04/15/2004 | US20040070370 Method for operating power source system and power source system comprising secondary battery |
| 04/15/2004 | US20040070281 Method and apparatus for isolating a cogeneration system from a utility source |
| 04/15/2004 | US20040070279 System and method for automatically providing continuous power supply via standby uninterrupted power supplies |
| 04/15/2004 | US20040070277 Apparatus and method for controlling a power supply |
| 04/15/2004 | DE10244608A1 Emergency battery power supply is protected from damage in charging if discharged voltage condition becomes too low |
| 04/15/2004 | DE10148348B4 Redundate Spannungsversorgung für dreikanaligen elektrischen Verbraucher Redundate power supply for three-channel electrical load |
| 04/14/2004 | EP1407531A2 Method and device for short-circuiting temporary power failures in a matrix converter |
| 04/14/2004 | CN1489256A UPS Spare system and method |
| 04/14/2004 | CN1489255A Method for making operation of load in spare mode eg. peak-reduced power mode |
| 04/13/2004 | US6720674 Device for prevention of power interruptions |
| 04/08/2004 | WO2004030189A2 Power conversion in variable load applications |
| 04/08/2004 | WO2004030178A1 System for providing assured power to a critical load |
| 04/08/2004 | US20040066662 Power supply device and method having a spark prevention function |
| 04/08/2004 | US20040066201 Arrangements to detect and respond to disturbances in electrical power systems |
| 04/08/2004 | US20040066179 DC/DC boost converter and control method therefor |