Power circuit control apparatus for primary and auxiliary loads

Details Power circuit control apparatus for primary and auxiliary loads Power circuit control apparatus for primary and auxiliary loads

1984-10-12

1986-03-11

Moose, Jr., Harry E.

Electrical transmission or interconnection systems

Plural load circuit systems

Plural sources of supply

307 39, 307 66, 307 86, 307130, 307140, H02J 110

Patent

active

045756406

ABSTRACT:
A consumer electronics product such as a portable radio or combination radio/tape recorder having both primary and auxiliary loads is provided with power control apparatus for energizing both loads when connected to a source of a-c potential and energizing only the primary load when connected to a source of d-c potential. The control apparatus includes a solid state switching device in series with the auxiliary load, the switching device coupled to the output of the a-c source such that it is conductive only when a-c electric power is being supplied to drive the loads.

REFERENCES:
patent: 3562555 (1971-02-01), Ahrons
patent: 4054802 (1977-10-01), Mock
patent: 4327298 (1982-04-01), Burgin
patent: 4375701 (1983-03-01), Hanson
patent: 4486759 (1984-12-01), Toyomura

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