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:
Feb. 19, 2019

Filed:

Dec. 29, 2016
Applicant:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Inventors:

Yosuke Toyama, Kawasaki, JP;

Taichi Ogawa, Inagi, JP;

Takeshi Ueno, Kawasaki, JP;

Tetsuro Itakura, Nerima, JP;

Osamu Watanabe, Chigasaki, JP;

Takayuki Miyazaki, Setagaya, JP;

Assignee:

KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/577 (2006.01); H02M 3/158 (2006.01); H02M 3/157 (2006.01); H02M 1/08 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/157 (2013.01); H02M 1/08 (2013.01); H02M 3/158 (2013.01); H02M 2001/009 (2013.01); H02M 2001/0009 (2013.01);
Abstract

A DC-DC converter includes an input terminal, multiple output terminals, an inductor, a first switch, a first condenser, a second switch and a switch controller. One end of the inductor is connected to the input terminal. The first switch is subjected to on-off control to change a current flowing through the inductor. The first condenser has one end connected between the inductor and a first output terminal, which is one of the multiple output terminals, and has the other end connected to a ground. The second switch is connected between the inductor and the first condenser. The switch controller controls the second switch to turn on when the first switch is turned off while a first output voltage from the first output terminal is smaller than a predetermined first threshold value.


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