Title:
ＤＣ－ＤＣコンバータ
Document Type and Number:
Japanese Patent JP7036680
Kind Code:
B2
Abstract:
A DC-DC converter has a configuration in which a first full-bridge circuit and a second full-bridge circuit are connected via a transformer and an inductor. A control circuit controls soft switching of each switching element in the first full-bridge circuit and the second full-bridge circuit. An inductor current flowing through an equivalent inductor at a time of switching of turning on or off each switching element is greater than or equal to a threshold current, the equivalent inductor being equivalent to the transformer and the inductor. The control circuit outputs predetermined power by changing a voltage output period of the first full-bridge circuit and a voltage output period of the second full-bridge circuit while fixing the switching frequency and keeping constant a polarity inversion period in which the output of the second full-bridge circuit and the output of the first full-bridge circuit have reverse polarities. This enables performing ZVS operations by simple control and reducing switching losses.
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Inventors:
Shogo Nakahara
Nakayama Taiei
Nakayama Taiei
Application Number:
JP2018119551A
Publication Date:
March 15, 2022
Filing Date:
June 25, 2018
Export Citation:
Assignee:
Diazebra Electric Co., Ltd.
International Classes:
H02M3/28
Domestic Patent References:
| JP201785785A |
Foreign References:
| WO2012144249A1 |
Attorney, Agent or Firm:
Takami Nishida
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