Uninterruptible power system

Details Uninterruptible power system Uninterruptible power system

1994-05-04

1996-07-02

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

307 66, 364492, H02J 700

Patent

active

055325238

ABSTRACT:
An improved uninterruptible power system including a UPS auto off circuit, a current limit protecting circuit, a power on overload protecting circuit, a simple charging circuit, a relay driver circuit, an external power voltage detecting circuit, a driver circuit, and a synchronizing circuit.

REFERENCES:
patent: 4520275 (1985-05-01), Marusik
patent: 4827151 (1989-05-01), Okado
patent: 4916329 (1990-04-01), Dang et al.
patent: 5315533 (1994-05-01), Stich et al.

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