DC-DC converter

Inductor devices – Plural part core

Reexamination Certificate

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C336S178000, C336S222000

Reexamination Certificate

active

07825765

ABSTRACT:
In a DC to DC converter, first and second primary windings are magnetically coupled to a first secondary winding. Third and fourth primary windings are magnetically coupled to a second secondary winding. The first and second primary windings are magnetically coupled to the first secondary winding. The third and fourth primary windings are magnetically coupled to the second secondary winding. The first and third primary windings are coupled in series to form a first coil member. The second and fourth primary windings are coupled in series to form a second coil member. One end of the first coil member is coupled to the first positive power line. A first switching element is coupled between the first negative power line and the other end of the first coil member. A first capacitor is coupled between the first negative terminal and one end of the second coil member.

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Jan. 14, 2010 Notification of Reasons for Rejection issued in JP 2004-207597 w/English-language translation.
French Preliminary Search Report issued Jun. 2, 2008 with English-language translation.
Japanese Notification of Reasons for Rejection for Patent Application No. 2004-207617 issued Jun. 23, 2009 with English-language translation.
Japanese Notification of Reasons for Rejection for Patent Application No. 2004-207597 issued Jun. 23, 2009 with English-language translation.
Japanese Information Offer Form for Patent Application No. 2004-207617 issued Aug. 6, 2009 with English translation.
Japanese Information Offer Form for Patent Application No. 2004-207597 issued Aug. 6, 2009 with English translation.

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