Method and apparatus for detecting a reduction in the input volt

Details Method and apparatus for detecting a reduction in the input volt Method and apparatus for detecting a reduction in the input volt

1988-07-21

1989-04-25

Wong, Peter S.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 21, 363 97, 340663, 361 92, H02H 7122

Patent

active

048253502

ABSTRACT:
A scheme for detecting reduced source of voltage of a controlled switching power supply including a transformer employs the inherent insolation characteristics of the transformer to yield an isolated alarm signal indicative of a failed or inadequate source voltage.

REFERENCES:
patent: 4573112 (1986-02-01), Numata et al.
patent: 4628429 (1986-12-01), Walker
patent: 4688158 (1987-08-01), Peterson et al.
patent: 4717997 (1988-01-01), Hata
patent: 4737853 (1988-04-01), Graves et al.
patent: 4745299 (1988-05-01), Eng et al.
patent: 4763238 (1988-08-01), Maige

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