Uninterruptible power supplies

Details Uninterruptible power supplies Uninterruptible power supplies

1990-06-19

1992-06-30

Gaffin, Jeffrey A.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

307 45, 307 75, 307 87, 320 48, 363 37, H02J 906

Patent

active

051265850

ABSTRACT:
Power supply apparatus is disclosed which can be configured as a power line filter or an uninterruptible power supply having a battery test on load capability. It comprises an input reversible rectifier connectable between an AC supply and a high voltage internal DC bus, a second reversible rectifier interconnecting storage batteries to the high voltage DC bus, and an output module supplying a desired DC output or an AC output. In use the voltage on the internal DC bus is maintained at a greater level than that of (a) the instantaneous repetitive peak of the incoming voltage, and (b) the peak battery storage voltage. Battery test means is provided by allowing the dumping of the charge stored within the storage batteries for a certain period at the maximum available rate into the internal bus and back into the AC supply through the said reversible rectifiers; meanwhile observing the extent of the battery voatage drop so caused.

REFERENCES:
patent: 4366390 (1982-12-01), Rathmann
patent: 4709318 (1987-11-01), Gephart et al.
patent: 4788450 (1988-11-01), Wagner
patent: 4985819 (1991-01-01), Mori et al.
"Hysteresis Current-Forced Three-Phase Voltage-Sourced Reversible Rectifier", I.E.E.E. Proceedings, vol. 136, No. 3, May 1989, by A. Green et al., pp. 113-120.
"Current-Forced Single-Phase Reversible Rectifier", I.E.E.E. Proceedings, vol. 136, No. 5, Sep. 1989, by J. Boys et al., pp. 205-211.
"Future Powersupplies Having Built-In Battery Back Up", INTELEC 87, Jun. 17, 1987, By G. Andersen et al., pp. 163-168.
"A Novel AC Uninterruptible Power Supply", INTELEC 87, Jun. 17, 1987, by F. Barzegar, pp. 521-524.

Affiliated with

Also associated with

Rating

Uninterruptible power supplies does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Uninterruptible power supplies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Uninterruptible power supplies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1865755