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:
Nov. 11, 2003
Filed:
Nov. 13, 2001
Peter Jaenicke, Erlangen, DE;
Siemens Aktiengesellschaft, , DE;
Abstract
In a control loop comprising a motor, a power section, a motor sensor and a control unit, an electrical circuit is also closed by producing an electrical connection between the motor and the motor sensor. Safe electrical isolation in such a control loop is preferably overcome by means of parasitic capacitances. The control unit transmits a feature, preferably via the power section, which feature is passed to the control unit once again from the other direction. This feature need not be an identity in the sense of a number, and a pulse which can be identified uniquely is sufficient. This allows a technically very effective implementation of a comparison of the control loop structure with the actual wiring, by the control unit evaluating the motor sensor to determine whether the pulse has occurred.