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:
Feb. 23, 1993
Filed:
Sep. 27, 1991
Evert Seevinck, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
In a current-mode transconductor-C integrator, the non-linearity of the voltage-to-current conversion of a transconductor is corrected by means of a differentiator which supplies a current (i.sub.d) which is proportional to the derivative of a current (i.sub.f) which in turn is proportional to the transconductor output current (i.sub.out), with respect to the transconductor control (v). An input current (i.sub.in) is divided by the current (i.sub.d) by means of a current divider. The resultant quotient current (i.sub.q) is applied to an integrating capacitor across which a voltage (v) is built up. This voltage is converted into the output current (i.sub.out) by the transconductor. This results in an output current (i.sub.out) which is linearly proportional to the integral of the input current (i.sub.in) without the distortion usually caused by the non-linear voltage-to-current characteristic of the transconductor.