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.
Patent No.:
Date of Patent:
Jan. 26, 2021
Filed:
Mar. 11, 2019
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Yoichi Tokai, Tokyo, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION, Tokyo, JP;
Abstract
A current drive circuit has a first transistor that outputs a current, a second transistor connected to the first transistor by cascode connection, a third transistor connected to the second transistor by cascode connection, a first current source that supplies a current to the third transistor and the second transistor, a fourth transistor that shares a gate with the third transistor, a fifth transistor that is connected to the fourth transistor by cascode connection and shares a gate with the second transistor, a second current source that supplies a current to the fourth transistor and the fifth transistor, a sixth transistor that shares a gate with the third transistor and the fourth transistor and controls a gate voltage of the first transistor, and a third current source that supplies a drain current of the sixth transistor.