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:
Dec. 08, 2020
Filed:
Nov. 21, 2019
Ablic Inc., Chiba, JP;
Kazuhiro Tsumura, Chiba, JP;
ABLIC INC., Chiba, JP;
Abstract
A reference voltage generation device () includes a constant current circuit () configured to output a constant current; and a plurality of voltage generation circuits () each configured to generate an output voltage based on the constant current, wherein the constant current has a correlation represented by a first gradient with respect to a temperature change, and wherein a plurality of the output voltages from the plurality of voltage generation circuits () have correlations represented by second gradients that are inverse to the correlation represented by the first gradient with respect to the temperature change and have different gradient indices. The reference voltage generation device () is configured to generate a reference voltage based on the constant current and the output voltage of at least one voltage generation circuit selected from the plurality of voltage generation circuits.