Title:
DC-DC CONVERTER
Document Type and Number:
WIPO Patent Application WO/2010/107060
Kind Code:
A1
Abstract:
Provided is a DC-DC converter wherein an insulated high-frequency transformer is provided and a voltage resonant circuit composed of a switching circuit is connected to the primary side of a first transformer. An inductance is connected in series between the terminal on the secondary side of the high-frequency transformer and an output terminal, a second switching circuit is connected between the secondary side and the output terminal so as to be alternately switched therebetween, and a voltage is outputted via a rectifying circuit and a smoothing circuit. The voltage resonant circuit is switched by means of first switching signals, and the frequency of the first switching signals is set higher than a reference frequency when the output voltage is larger than a target voltage, and when the output voltage is smaller than the target voltage, the frequency of the first switching signal is set lower than the reference frequency.
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Inventors:
TAN NOZOMI (JP)
HORIUCHI SHOJI (JP)
HORIUCHI SHOJI (JP)
Application Number:
PCT/JP2010/054552
Publication Date:
September 23, 2010
Filing Date:
March 17, 2010
Export Citation:
Assignee:
WINZ CORP (JP)
MITSUI BUSSAN (JP)
TAN NOZOMI (JP)
HORIUCHI SHOJI (JP)
MITSUI BUSSAN (JP)
TAN NOZOMI (JP)
HORIUCHI SHOJI (JP)
International Classes:
H02M3/28
Foreign References:
| JP2003111401A | 2003-04-11 | |||
| JPH08126314A | 1996-05-17 |
Attorney, Agent or Firm:
SUZUYE, Takehiko et al. (JP)
Takehiko Suzue (JP)
Takehiko Suzue (JP)
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