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:
Aug. 15, 1989
Filed:
Jul. 29, 1987
Applicant:
Inventor:
Lary L Fields, Caledonia, IL (US);
Assignee:
Barber-Colman Company, Rockford, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06G / ;
U.S. Cl.
CPC ...
364829 ; 307490 ; 307540 ; 328127 ;
Abstract
An electronic integrator employing an algebraically summing operational amplifier which accepts input signals of opposite polarities, relative to a reference voltage, and wherein wind-up is alleviated by diodes which are normally reverse-biased and non-conductive but which respectively become conductive to clamp the net input voltage to a positive or negative magnitude which precludes further 'wind-up' of the integrator output.