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. 24, 2019
Filed:
Jul. 29, 2016
Applicant:
Circuit Seed, Llc, Newport Beach, CA (US);
Inventors:
Susan Marya Schober, Corona Del Mar, CA (US);
Robert C. Schober, Huntington Beach, CA (US);
Assignee:
Circuit Seed, LLC, Newport Beach, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 3/24 (2006.01); G05F 3/26 (2006.01); H03F 3/16 (2006.01); H01L 27/092 (2006.01);
U.S. Cl.
CPC ...
G05F 3/245 (2013.01); G05F 3/262 (2013.01); H03F 3/165 (2013.01); H01L 27/092 (2013.01);
Abstract
Existing proportional to absolute temperature (PTAT)/complementary-to-absolute-temperature (CTAT) reference voltage circuit requires a large components count and foot print, precise device matching for accuracy and unsatisfactory sensitivity error or variation to temperature and humidity. The present invention relates to a novel approach for such reference voltage circuit based on a self-biased complementary pair of n-type and p-type current field-effect transistors, which provides rail PTAT, rail CTAT and analog reference voltages.