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:
Aug. 09, 2016

Filed:

Jan. 31, 2014
Applicant:

Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;

Inventors:

Hiroshi Tamura, Tokyo, JP;

Kenji Kubo, Hitachinaka, JP;

Takuma Ono, Hitachinaka, JP;

Susumu Sato, Hitachinaka, JP;

Satoshi Idei, Hitachinaka, JP;

Assignee:

Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); B60L 3/00 (2006.01); B60L 7/16 (2006.01); B60L 15/20 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33546 (2013.01); B60L 3/0046 (2013.01); B60L 7/16 (2013.01); B60L 15/2045 (2013.01); H02M 3/33584 (2013.01); B60L 2210/10 (2013.01); Y02T 10/645 (2013.01); Y02T 10/7216 (2013.01); Y02T 10/7283 (2013.01);
Abstract

An object is to suppress deterioration of a high-voltage side battery regardless of the magnitude of a load current. Provided is a control device of a DC-DC converter that is constituted by a primary side circuit that is electrically connected between an input side and a transformer, and a secondary side circuit that is electrically connected between an output side and the transformer. The control device includes a command generating unitthat sets an output current limiting value to a predetermined value on the basis of a detected input voltage, a duty generating unitthat calculates a duty configured to turn ON/OFF a switching element on the basis of the output current limiting value and a detected output current, and a switching signal generating unitthat generates a switching signal on the basis of the duty. The duty generating unitgenerates the duty so that an output current is limited to the output current limiting value or less.


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