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:
Sep. 20, 2022

Filed:

Sep. 08, 2020
Applicant:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventors:

Yusuke Hayashi, Kanagawa, JP;

Kazuto Takao, Ibaraki, JP;

Kentaro Ikeda, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 1/00 (2006.01); H02M 3/335 (2006.01); H02M 3/28 (2006.01); H02M 7/219 (2006.01); H02M 7/217 (2006.01); H02M 1/08 (2006.01); H03K 17/687 (2006.01); H02M 1/088 (2006.01);
U.S. Cl.
CPC ...
H02M 7/219 (2013.01); H02M 1/08 (2013.01); H02M 3/158 (2013.01); H03K 17/6871 (2013.01); H02M 1/0003 (2021.05); H02M 1/007 (2021.05); H02M 1/0074 (2021.05); H02M 1/088 (2013.01);
Abstract

A power switcher includes a first normally-off transistor that switches between interrupting and not interrupting a current path between first and second electrodes according to a drive voltage input to a first control electrode, a second normally-on transistor cascode-connected to the first transistor and including a second control electrode to which the second electrode of the first transistor is connected, a control voltage generator that generates a control voltage in accordance with a voltage between the first and second electrodes of the first transistor, and a drive voltage generator that generates a drive voltage equal to or lower than a withstand voltage of the first transistor in accordance with the control voltage.


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