Power supply with reduced switching losses by blocking a...

Details Power supply with reduced switching losses by blocking a... Power supply with reduced switching losses by blocking a...

2006-10-11

2011-11-08

Behm, Harry (Department: 2838)

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

C363S041000

Reexamination Certificate

active

08054659

ABSTRACT:
A power supply device includes a first switching element, a second switching element, a transformer having a primary coil, a low-pass filter including an input port connected to the secondary coil, an output terminal connected to an output port of the low-pass filter, a detector for outputting a voltage that follows a voltage at the output terminal, a reference signal generator for generating a reference voltage, a comparator unit for outputting a signal based on a result of comparison between the voltage supplied from the detector and the reference voltage, and an operation pause circuit controlling the first and second switching elements. The operation pause circuit is operable to drive the first and second switching elements according to the signal output from the comparator unit, and to cause the first and second switching elements not to conduct regardless of the signal output from the comparator unit.

REFERENCES:
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patent: 7176663 (2007-02-01), Takimoto et al.
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patent: 2005-308165 (2010-10-01), None
World Intellectual Property Organization (WIPO), Certified priority document, PCT/JP2006/320356, International filing date Oct. 11, 2006, pp. 1-20.
International Search Report for PCT/JP2006/320256, dated Dec. 26, 2006.

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