Switching power supply device and method of controlling the...

Details Switching power supply device and method of controlling the... Switching power supply device and method of controlling the...

2007-05-22

2007-05-22

Philogene, Haissa (Department: 2821)

Electric lamp and discharge devices: systems

Time-controlled

C315S291000, C315S307000, C315S224000, C315S194000, C315SDIG002, C363S021110, C363S021120, C363S021140, C363S045000

Reexamination Certificate

active

11314420

ABSTRACT:
According to one embodiment, the switching power supply device comprises a DC-DC converter, an alternating current driver circuit, a smoothing capacitor and control circuitry. The control circuitry operates for adjusting a phase of an oscillation signal from the alternating current driver circuit to coincide start time points of current conducting periods between the output stage of the DC-DC converter and an input stage of the alternating current driver circuit.

REFERENCES:
patent: 4868729 (1989-09-01), Suzuki
patent: 6185111 (2001-02-01), Yoshida
patent: 6631082 (2003-10-01), Birumachi
patent: 05-341262 (1993-12-01), None
patent: 09-005705 (1997-01-01), None
patent: 09-331680 (1997-12-01), None
patent: 2002-101660 (2002-04-01), None

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