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:
Mar. 17, 2009
Filed:
Jul. 03, 2006
Applicant:
Tser-yu Lin, Hsin-Chu, TW;
Inventor:
Tser-Yu Lin, Hsin-Chu, TW;
Assignee:
MediaTek Inc., Hsin-Chu Hsien, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/567 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device, having temperature compensation, includes a constant voltage provider for providing a constant voltage; and a compensating load coupled to the constant voltage provider for providing a resistive load to transform the constant voltage into a substantially constant current. The compensating load contains a resistor, having a negative temperature coefficient and coupled to the constant voltage; and a compensating unit, having a positive temperature coefficient and coupled in series to the resistor, for compensating a resistance variation of the resistor for a temperature variation.