Power indicator apparatus for a DC to DC flyback converter

Details Power indicator apparatus for a DC to DC flyback converter Power indicator apparatus for a DC to DC flyback converter

1982-06-04

1985-01-29

Rowland, James L.

Communications: electrical

Condition responsive indicating system

Specific condition

315135, 315241P, 363 19, G08B 2100

Patent

active

044969392

ABSTRACT:
A battery power indicator for a DC to DC flyback converter is responsive to the current flowing in the secondary winding of the converter's transformer. In one embodiment the power indicator is lighted when the battery is weak but not dead. If the battery is good, the indicator is bypassed and remains off. In a second embodiment, the indicator is lighted to indicate a good battery and when the power capability of the battery drops below a predetermined level, the indicator turns off.

REFERENCES:
patent: 4068150 (1978-01-01), Iwata et al.
patent: 4197484 (1980-04-01), Tanaka
patent: 4258290 (1981-03-01), Nakajima
patent: 4258297 (1981-03-01), Nakajima

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