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. 24, 1999
Filed:
Feb. 14, 1996
Applicant:
Inventor:
Jean-Marie Charreton, Bouc-Bel-Air, FR;
Assignee:
SGS-Thomson Microelectronics S.A, Saint Genis, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B / ; H02J / ; H02P / ;
U.S. Cl.
CPC ...
318254 ; 318138 ; 318439 ;
Abstract
A device for controlling a variable speed motor includes a chopper including a switch for modulating by variable width pulses a rectified a.c. voltage. At least one winding of the motor forms, with a capacitor for filtering out the switching peaks of the switch a first cell for filtering out radio frequency perturbations generated by the switching of the switch.
Charreton, Jean-Marie. (1999). Control device for a variable speed electric motor (U.S. Patent No. 5942864). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5942864
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile