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:
Nov. 30, 2021
Filed:
Oct. 31, 2018
Applicant:
Microchip Technology Incorporated, Chandler, AZ (US);
Inventor:
James E. Bartling, Chandler, AZ (US);
Assignee:
Microchip Technology Incorporated, Chandler, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01K 7/00 (2006.01); G01K 7/34 (2006.01); G01K 1/02 (2021.01); G05F 3/10 (2006.01);
U.S. Cl.
CPC ...
G01K 7/34 (2013.01); G01K 1/028 (2013.01); G05F 3/10 (2013.01);
Abstract
A Proportional-To-Absolute-Temperature (PTAT) current source is used for high-resolution temperature measurement. The PTAT current source is coupled to a capacitor for a fixed amount of time so as to charge the capacitor to a voltage which is proportional to the current applied to the capacitor, and thus proportional to the temperature. The voltage on the capacitor is measured, and a temperature is calculated or determined from the measured voltage.