Power supply circuit with symmetrically tapped auto-transformer

Details Power supply circuit with symmetrically tapped auto-transformer Power supply circuit with symmetrically tapped auto-transformer

1988-11-28

1990-03-06

Salce, Patrick R.

Electrical transmission or interconnection systems

Plural load circuit systems

Transformer connections

323359, 336148, H02J 300

Patent

active

049068598

ABSTRACT:
An auto-transformer has first and second input terminals and first, second and third output terminals, the second output terminal being connected to a center tap of a coil and the first and third output terminals being connected to such points of the coil which are symmetrical with respect to the center tap. The first and second input terminals are connected to such points of the coil which are symmetrical with respect to the center tap. A first group of loads is coupled across the first and second output terminals and a second group of loads is coupled across the second and third output terminals. By equalizing the load currents to the first and second groups, the total current of the auto-transformer can be made significantly small.

REFERENCES:
patent: 1939319 (1933-12-01), Reiche
patent: 3652923 (1972-03-01), Knudson
patent: 3824449 (1974-07-01), Hase
patent: 4016452 (1977-04-01), Willis
patent: 4100476 (1978-07-01), Ghiringhelli
patent: 4309651 (1982-01-01), Brennan
patent: 4591779 (1986-05-01), Carpenter et al.

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