Low voltage DC-DC converter

Details Low voltage DC-DC converter Low voltage DC-DC converter

2007-01-30

2007-01-30

Berhane, Adolf (Department: 2838)

Electric power conversion systems

Current conversion

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

Reexamination Certificate

active

10643531

ABSTRACT:
A direct current to direct current voltage converter (DC-DC converter) in accordance with the invention comprises a transformer coupled with a voltage source and a self-starting oscillator that includes a secondary winding of the transformer, a capacitor; and a first switch coupled to conduct current from the DC source via a primary winding of the transformer. The first switch is a normally closed switch. The DC-DC converter also comprises a second switch coupled to conduct current in a parallel path with the first switch, the second switch being a normally open switch having a lower saturation resistance than the first switch.

REFERENCES:
patent: 4696639 (1987-09-01), Bohan, Jr.
patent: 4734658 (1988-03-01), Bohan, Jr.
patent: 4770629 (1988-09-01), Bohan, Jr.
patent: 4890210 (1989-12-01), Myers
patent: 4984981 (1991-01-01), Pottebaum
patent: 5931655 (1999-08-01), Maher, Jr.
patent: 6237855 (2001-05-01), Stickney et al.
patent: 6252781 (2001-06-01), Rinne et al.

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