Title:
DC-DC CONVERTER
Document Type and Number:
WIPO Patent Application WO/2020/003718
Kind Code:
A1
Abstract:
Provided is a DC-DC converter that performs aZVS operation with a simple control to reduce switching loss. The DC-DC converter (1) has a configuration in which a first full-bridge circuit (10) and a second full-bridge circuit (20) are connected to each other through a transformer (T) and an inductor (L1). A control circuit (30) performs a soft switching control on each switching element of the first and second full-bridge circuits (10, 20). While fixing a switching frequency (f) to keep a polarity inversion period (τc) during which the output of the first full-bridge circuit (10) and the output of the second full-bridge circuit (20) are inverted in polarity constant, the control circuit (30) executes an output angle change mode in which the voltage output period (τ1) of the first full-bridge circuit (10) and the voltage output period (τ2) of the second full-bridge circuit (20) are changed, thereby controlling the output power (P) of the DC-DC converter (1).
Inventors:
NAKAHARA SHOGO (JP)
NAKAYAMA HIROYOSHI (JP)
NAKAYAMA HIROYOSHI (JP)
Application Number:
PCT/JP2019/017379
Publication Date:
January 02, 2020
Filing Date:
April 24, 2019
Export Citation:
Assignee:
DIAMOND ELECTRIC MFG (JP)
International Classes:
H02M3/28
Domestic Patent References:
| WO2012144249A1 | 2012-10-26 |
Foreign References:
| JP2017085785A | 2017-05-18 |
Attorney, Agent or Firm:
NISHIDA Takami (JP)
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