Transformer

Details Transformer Transformer

1980-10-20

1982-06-15

Shoop, William M.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

336183, H02M 3335

Patent

active

043354238

ABSTRACT:
A transformer includes a magnetic core; an input or primary winding structure wound on a bobbin secured to the magnetic core and including first and second primary winding portions; an output or secondary winding structure wound on the bobbin and including first and second secondary winding portions; and a control or tertiary winding structure wound on the bobbin and including first and second tertiary winding portions with the first tertiary winding portion being comprised of first and second windings connected in series, the primary, secondary and tertiary winding structures being wound on the bobbin in the order of the first primary winding portion, the first winding of the first tertiary winding portion, the first secondary winding portion, the second secondary winding portion, the second winding of the first tertiary winding portion, the second primary winding portion, and the second tertiary winding portion, so as to provide a high degree of magnetic coupling between the first primary and secondary winding portions and the first tertiary winding portion and between the second primary and secondary winding portions and the first tertiary winding portion and so as to provide noise suppression between the first primary and secondary winding portions and between the second primary and secondary winding portions.

REFERENCES:
patent: 2791646 (1957-05-01), Keroes
patent: 3210703 (1965-10-01), Lockie
patent: 4156273 (1979-05-01), Sato
patent: 4236198 (1980-11-01), Ohsawa et al.

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