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.

Date of Patent:
Nov. 14, 2000

Filed:

Nov. 19, 1998
Applicant:
Inventors:

Yuji Kakuta, Tokyo, JP;

Yoshiaki Fukasawa, Tokyo, JP;

Yuichi Taguchi, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ; H03F / ;
U.S. Cl.
CPC ...
330277 ; 330289 ; 330302 ; 330311 ;
Abstract

Compensating for fluctuations in the gain characteristic of the gain slope in the event of changes in ambient temperature without increasing circuit scale or adding to costs. A thermistor, which is a thermally sensitive resistance element in which resistance changes with a negative temperature characteristic according to the ambient temperature, is employed as the gate resistance of an FET, and the circuit functions such that fluctuations in the gain characteristic of the gain slope with respect to ambient temperature are canceled out by fluctuations in the value of Q with respect to the ambient temperature, thereby compensating for fluctuations in the gain slope characteristic in the event of changes in the ambient temperature.


Find Patent Forward Citations

Loading…