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:
Jul. 09, 2002
Filed:
Jul. 17, 2000
Applicant:
Inventor:
Chunyan Wang, Montréal, CA;
Assignee:
Concordia University, Montreal, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05I 3/02 ;
U.S. Cl.
CPC ...
G05I 3/02 ;
Abstract
A method and circuit are provided to perform current-to-voltage conversions. The circuit is operational in one linear mode based on channel-length-modulation effects in the saturation region and two non-linear modes based on a current operation overrunning the saturation region and a logarithmic function of drain current versus gate-to-source voltage, respectively. An adaptive process is provided to set-up the quiescent point of the circuit. The conversion gain is variable with respect to the conversion mode, the current range, and the length of the converting transistor.