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:
May. 13, 2003
Filed:
Jan. 18, 2001
Applicant:
Inventor:
Dar-Chang Juang, Hsinchu, TW;
Assignee:
Sunplus Technology Co., Ltd., Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 3/20 ;
U.S. Cl.
CPC ...
G05F 3/20 ;
Abstract
A low temperature coefficient reference current generator has a bandgap reference voltage generator for providing a low temperature coefficient bandgap reference voltage and a positive temperature coefficient current. The low temperature coefficient reference current generator utilizes the low temperature coefficient bandgap reference voltage to drive a positive temperature coefficient resistor disposed in an IC, so as to produce a negative temperature coefficient current. The positive temperature coefficient current and the negative temperature coefficient current are adjusted and combined to produce a low temperature coefficient reference current.