Failure-free power source device

Details Failure-free power source device Failure-free power source device

1994-11-21

1997-05-27

Wong, Peter S.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

307 86, 363 37, H02H 710

Patent

active

056337892

ABSTRACT:
A failure-free power source device memorizes the history of errors of a commercially available power source, monitors the stability of the power source on the basis of the history, directly outputs, when the power source remains stable for more than a predetermined period of time, an AC input as an AC output, and releases, when an error occurs in the power source, energy stored in an accumulator until a predetermined period of time expires to thereby output it as an AC output via an inverter.

REFERENCES:
patent: 5070251 (1991-12-01), Rhodes et al.
patent: 5272382 (1993-12-01), Heald et al.
patent: 5338994 (1994-08-01), Lezan et al.
"Joint Electricity Study"; the Expert Committee for Measures against Momentary Voltage Drops, Japanese Society for Joint Electricity Study, Vo. 46, No. 3, pp. 7-8, Figure 1-2-1 (issued Feb. 07, 1990) [in Japanese].

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