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:
Oct. 29, 2019

Filed:

Mar. 05, 2019
Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventors:

Kenji Tomita, Nisshin, JP;

Seiji Iyasu, Nisshin, JP;

Yuichi Handa, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/08 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33569 (2013.01); H02M 1/08 (2013.01); H02M 3/3353 (2013.01); H02M 3/33523 (2013.01);
Abstract

In a control device applied to an insulated DC-DC converter including a transformer and drive switches connected to a input winding of the transformer, the control device operates the drive switches to control an output voltage output via the output winding to a target voltage. Furthermore, the control device includes a voltage acquiring unit acquiring the output voltage and a frequency setting unit setting a switching frequency for the drive switches based on the output voltage acquired by the voltage acquiring unit. The frequency setting unit sets, for the switching frequency, a value increasing with a value of the acquired output voltage, and sets the switching frequency such that an increase in the value of the output voltage increases a frequency increase rate corresponding to an amount of increase in the switching frequency per unit amount of increase in the output voltage.


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