Title:
DC/DC CONVERTER AND POWER SOURCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/090066
Kind Code:
A1
Abstract:
A DC/DC converter 20 comprises a power unit 21 and a control unit 22, and is characterized in that the control unit 22 comprises: a first control unit 23 that generates a first control command value CC for causing the output of the power unit 21 to approach a target value; an input voltage ripple extraction unit 24 that extracts an input voltage ripple VR; an output current ripple extraction unit 25 that extracts an output current ripple IR; a second control unit 26 that multiplies a symbol F relating to the polarity of the input voltage ripple VR by the output current ripple IR to calculate a polarized output ripple FIR, and multiplies a gain G for causing the polarized output ripple FIR to approach a ripple target value by the input voltage ripple VR to generate a second control command value FG; and a switching control unit 27 that controls a switching element of the power unit 21 on the basis of the first control command value CC and the second control command value FG.
Inventors:
SASAKI MIKIO (JP)
YAMAGUCHI MASASHI (JP)
YAMAGUCHI MASASHI (JP)
Application Number:
PCT/JP2023/033707
Publication Date:
May 02, 2024
Filing Date:
September 15, 2023
Export Citation:
Assignee:
NICHICON CORP (JP)
International Classes:
H02M3/28; H02M1/14
Foreign References:
| JP2020173913A | 2020-10-22 | |||
| JP2001037215A | 2001-02-09 | |||
| JP2005006455A | 2005-01-06 | |||
| JP2021013233A | 2021-02-04 |
Attorney, Agent or Firm:
MINORI PATENT PROFESSION CORPORATION (JP)
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