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:
Nov. 22, 2022

Filed:

Jul. 08, 2020
Applicant:

Ablic Inc., Tokyo, JP;

Inventor:

Kosuke Takada, Tokyo, JP;

Assignee:

ABLIC INC., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/575 (2006.01); G05F 1/59 (2006.01);
U.S. Cl.
CPC ...
G05F 1/59 (2013.01); G05F 1/575 (2013.01);
Abstract

A constant voltage circuit includes a depletion transistor having a drain, a gate, and a source, the drain connected to a first power supply terminal, and the gate connected to the source, a voltage division circuit connected between the first power supply terminal and an output terminal, a first enhancement transistor having a drain connected to the source of the depletion transistor, a source connected to the output terminal, and a gate connected to an output terminal of the voltage division circuit, a second enhancement transistor having a source connected to the first power supply terminal, a drain connected to the output terminal, and a gate connected to the drain of the first enhancement transistor, and a pull-down element having one end connected to the output terminal and the other end connected to a second power supply terminal.


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