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US 4,335,423 AGranted
Transformer
AssigneeSony Corporation
InventorsAkio Koizumi, Hiroshi Nakazawa, Akira Endo
Life of this patent
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AssigneeSony Corporation
InventorsAkio Koizumi, Hiroshi Nakazawa, Akira Endo
Estimating the term…
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.
A transformer comprising:
In a switching regulator of the type including a transformer, switching means for controlling the energization of a primary winding structure, and control means for controlling the switching operation of said switching means, said transformer comprising:
Dependencies are inferred from the claim text.