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:
Mar. 10, 2015

Filed:

Sep. 29, 2011
Applicants:

Fumio Asakura, Okazaki, JP;

Kenji Ochi, Nishio, JP;

Hiroshi Yoshida, Chiryu, JP;

Inventors:

Fumio Asakura, Okazaki, JP;

Kenji Ochi, Nishio, JP;

Hiroshi Yoshida, Chiryu, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H02J 7/02 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0068 (2013.01); H02J 7/022 (2013.01); Y02T 10/92 (2013.01);
Abstract

In a power supply apparatus, a power source generates electric power at a predetermined source voltage. The first converter circuit converts the source voltage into a first voltage or a second voltage. The secondary battery is charged with electric power at the first voltage when the first converter circuit outputs electric power at the first voltage. The second converter circuit converts the first voltage of the electric power outputted from the first converter circuit or the secondary battery into the second voltage. The electric load device is supplied with electric power at the second voltage outputted from the second converter circuit. The direct power supply circuit directly supplies electric power at the second voltage outputted from the first converter circuit to the electric load device without passing through the second converter circuit when the first converter circuit outputs the electric power at the second voltage.


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