Transformer for switching power supply

Details Transformer for switching power supply Transformer for switching power supply

2007-01-16

2007-01-16

Mai, Anh (Department: 2832)

Inductor devices

Plural part core

C336S172000

Reexamination Certificate

active

11111741

ABSTRACT:
A transformer is constituted of an inner core, a plurality of outer cores connected in a ring to the inner core, a primary winding which is fed with a high frequency wave and wound around the inner core, and a secondary winding wound outside the primary winding. The secondary winding has, for the two outer cores, windings which are caused to pass at least once between the inner core and each of the respective outer cores, and the windings passed in the same direction are connected in parallel. With this configuration, it is possible to achieve a transformer for a switching power supply with a low voltage regulation.

REFERENCES:
patent: 4004251 (1977-01-01), Hesler et al.
patent: 4328458 (1982-05-01), Hiromitsu
patent: 6873237 (2005-03-01), Chandrasekaran et al.
patent: 2004/0239464 (2004-12-01), Mihara et al.
patent: 05205952 (1993-08-01), None
patent: 2000-134926 (2000-05-01), None

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