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. 05, 1980
Filed:
Dec. 13, 1978
Louis Chasson, Valence, FR;
Raymond Euvrard, Bourg les Valence, FR;
Paul Romand, Bourg de Peage, FR;
Crouzet, Paris, FR;
Abstract
This disclosure describes a device for converting binary coded angle information into the analog angular position of the rotor winding of a conventional counter-reaction resolver. The device is operative to provide two periodic rectangular wave signals of equal amplitudes and of time durations respectively proportional to the absolute values of the sine and cosine of the angle. These periodic rectangular wave signals are respectively applied to the stator windings of the resolver via two amplifiers respectively. Each of these amplifiers comprises a counter-reaction loop comprising a compensation winding and a capacitor. The rotor winding of the resolver is inserted in a servocontrol loop comprising an amplifier and a commutator which are connected only in the simultaneous absence of the two periodical rectangular wave signals.