About 30 results
https://drivepatents.com/patents/999506 · 8 Aug 2012
A system (100) for providing redundant power to a device includes a first power supply unit (104) that includes a first communication module (110) including first and second first power supply unit transmitters and first and second first power supply unit ...
https://drivepatents.com/patents/1003694 · 4 Apr 2012
A system (100) for providing power to a device includes a first power supply unit (104) having a first power module (108) that provides A.C. power and is selectively connectable to input lines and a first communication module (110). The system also include...
https://drivepatents.com/patents/1005033 · 22 Feb 2012
The bus phase monitor (1) has monitoring unit (3) to monitor a power source (2), and communication unit (4) to exchange data with control bus (5). The monitoring unit and communication unit are connected with one another, such that the power source is moni...
https://drivepatents.com/patents/1009255 · 28 Sep 2011
A network device with an uninterruptible power supply function is provided. The network device includes a network physical transmission unit, a power connecting part and a backup power supply module. The network physical transmission unit is operated at a ...
PRIVATE GENERATOR WITH AUTOMATIC TRANSFORM TO FIRE-USE ONLY FEATURE FOR FIRE AND NON-FIRE EMERGENCES
https://drivepatents.com/patents/1011031 · 20 Jul 2011
The present invention relates to a private generator having an automatic switching function to fire extinguishment, the private generator having a main power circuit breaker and a circuit breaker for power interruption and a circuit breaker for fire exting...
https://drivepatents.com/patents/1079309 · 16 Mar 2005
An object of the present invention is to provide a power supply device that permits high efficiency and miniaturization, that makes the constitution of a power supply device advantageous from a cost perspective and an assembly work standpoint, and that als...
https://drivepatents.com/patents/1079643 · 2 Mar 2005
A vital power supply system that utilizes a two out of three determination scheme to control the tolerance of the output voltage and also to shut down the output voltage. The power supply system includes monitoring circuits that determine over-voltage and ...
https://drivepatents.com/patents/1096072 · 14 May 2003
A network is configured to apply power and data signals to networked devices for operation of the devices. A backup power supply module is coupled to the source of network power and to a secondary power source. The secondary power source may have an adjust...
https://drivepatents.com/patents/1102797 · 31 Jul 2002
A power-supply arrangement comprises a transformer having first and second primaries and first and second secondaries on a common core, the primaries being fed by first and second power-sources, respectively, and the secondaries feeding first and second lo...
https://drivepatents.com/patents/1111322 · 1 Aug 2001
A UPS device (10) of universal application provides a pair of backfeed relays (represented at block 116), which are mandated by certain countries outside the United States, controlled (as represented by line 142) by an overall control circuit (represented ...