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:
Dec. 30, 1980
Filed:
Sep. 22, 1978
Applicant:
Inventors:
Karl Schalk, Nuremberg, DE;
Georg Kogler, Schwabach, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B / ;
U.S. Cl.
CPC ...
318696 ; 318368 ;
Abstract
During the positioning of a dc stepper motor equipped with a permanent magnet rotor and electronic commutation device, an additional braking moment is enabled through a time delay stage which is triggered by the commutation signals, and/or the desired value of the nominal current regulator current is reduced to a desired holding current value at the end of the delay of the time delay stage.