Universal power adapter for converting AC/DC voltage to DC volta

Details Universal power adapter for converting AC/DC voltage to DC volta Universal power adapter for converting AC/DC voltage to DC volta

1992-04-02

1993-09-14

Beha, Jr., William H.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Selective or optional sources

307128, 363 37, H02J 400

Patent

active

052452204

ABSTRACT:
A universal power adapter comprised of a standard IEC three-wire socket, an AC/DC power supply detector circuit, an AC/DC power supply selector circuit, an AC/DC power supply pre-treating circuit, a DC power supply transformer circuit, a feedback and regulating circuit, and a DC output circuit, wherein said standard IEC three-wire socket connects an AC or DC input voltage to said AC/DC power supply selector circuit and said AC/DC power supply pre-treating circuit for converting into a DC voltage via said AC/DC power supply detector circuit, said DC voltage being treated through said DC power supply transformer circuit and said feed back and regulating circuit to provide a DC working voltage for output through an output device.

REFERENCES:
patent: 3873846 (1975-03-01), Morio et al.
patent: 3889173 (1975-06-01), Klusmann et al.
patent: 3898474 (1975-08-01), Funatsu et al.
patent: 4092709 (1978-05-01), Voigt et al.
patent: 4890217 (1989-12-01), Conway

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