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:
Jan. 29, 2002
Filed:
Apr. 13, 2001
Applicant:
Inventor:
J. Marcos Laraia, Pocatello, ID (US);
Assignee:
AMI Semiconductor, Inc., Pocatello, ID (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 3/16 ;
U.S. Cl.
CPC ...
G05F 3/16 ;
Abstract
A bandgap voltage reference circuit includes a current source and a bipolar transistor that are coupled together such that current from the current source passes through the bipolar transistor to a low voltage source such as ground. A composite resistor is coupled in series between the current source and the bipolar transistor. The composite resistor of this voltage reference leg of the circuit is composed of at least two component resistors that may be fabricated so as to adjust the temperature coefficient of the bandgap voltage reference as a whole.