The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 12, 2024

Filed:

Jun. 28, 2022
Applicant:

Yazaki Corporation, Tokyo, JP;

Inventor:

Hideaki Masui, Makinohara, JP;

Assignee:

YAZAKI CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 1/36 (2007.01); H02J 7/34 (2006.01); H02M 1/00 (2006.01); H02M 3/158 (2006.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); H02J 7/345 (2013.01); H02M 1/0025 (2021.05); H02M 1/36 (2013.01); H02J 2207/50 (2020.01);
Abstract

A DC/DC converter has a EFT, and converts a power supply voltage from EDLC by turning on and off the FET. A control unit outputs a first PWM signal whose duty gradually decrease from 100% to the FET when the power supply from the EDLC to the DC/DC convertor is started. Thereafter, the control unit outputs a second PWM signal having a duty controlled so that an output voltage or an output current of the DC/DC converter becomes a reference value to the FET.


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