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:
Sep. 21, 1993
Filed:
May. 27, 1992
Applicant:
Inventors:
Ludwig Binnewies, Lappersdorf, DE;
Udo Frinzel, Oberkotzau, DE;
Hans Schreiber, Lappersdorf, DE;
Herbert Zimmer, Regensburg, DE;
Andreas Noichl, Vienna, AT;
Manfred Trefalt, Vienna, AT;
Roman Turba, Vienna, AT;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ; H02P / ;
U.S. Cl.
CPC ...
310 / ; 310 / ; 318696 ;
Abstract
In a safety system for a stepper-motor drive, a stepper motor for operating a throttle valve has poles with windings. Each pole winding is divided into part-windings, each of which is driven by a dedicated output stage. As a result, in the event of a failure of a part-winding or an output stage, it remains possible to control the stepper motor.