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:
Jun. 06, 2017
Filed:
Jan. 12, 2015
Applicant:
Ol Security Limited Liability Company, Dover, DE (US);
Inventor:
David Cave, Tempe, AZ (US);
Assignee:
OL Security Limited Liability Company, Dover, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/567 (2006.01); G05F 1/46 (2006.01); G05F 3/30 (2006.01); G05F 3/16 (2006.01);
U.S. Cl.
CPC ...
G05F 1/468 (2013.01); G05F 3/16 (2013.01); G05F 3/30 (2013.01); G05F 1/567 (2013.01); Y10S 323/907 (2013.01);
Abstract
A temperature corrected voltage bandgap circuit is provided. The circuit includes first and second diode connected transistors. A first switched compare circuit is coupled to the one transistor to inject or remove a first current into or from the transistor. The first current is selected to correct for curvature in the output voltage of the bandgap circuit at one of hotter or colder temperatures.