AC/DC power supply

Details AC/DC power supply AC/DC power supply

1993-11-04

1997-05-20

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Diverse or unlike electrical characteristics

307 26, 307128, 363 21, H02J 400

Patent

active

056315040

ABSTRACT:
An AC/DC power supply includes an input sensing circuit for sensing whether the input connector is connected to an AC voltage source or to a relatively lower amplitude DC voltage source. When connected to the AC voltage source, a control circuit connects an input rectifier to the input circuit and also connects two primary windings of a power transformer in boosting relation to the output circuit. When the input connector is connected to the DC voltage source, the control circuit bypasses the input rectifier with respect to the input circuit, and connects only one of the primary windings to the output circuit while bypassing the other primary winding.

REFERENCES:
patent: 4185315 (1980-01-01), Miller
patent: 4608498 (1986-08-01), Falzarano et al.
patent: 4641234 (1987-02-01), Bonal
patent: 4791546 (1988-12-01), Carroll
patent: 5122946 (1992-06-01), Taylor
patent: 5245220 (1993-09-01), Lee

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