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:
Jan. 19, 1993
Filed:
Jul. 18, 1991
Ralf Austermann, Herzogenrath-Kohlscheid, DE;
U.S. Philips Corporation, New York, NY (US);
Abstract
A circuit arrangement is described for commutating a reluctance motor having a rotor (2) movable relative to a stator (1) and having a winding to which in specific positions of the rotor (2) relative to the stator (1) a current is applied by means of a switching device, and including a detection arrangement by which a voltage induced in the winding is detected and which enables the switching device when the induced voltage reaches a predetermined value. In a circuit arrangement of this type a simple, modular and thus universally usable structure is achieved in that the winding comprises at least three winding sections (110, 210, 310) arranged substantially equidistant along the motion coordinate (w) of the rotor (2) and winding sections that can individually admit current, so that from each winding section (110) the voltage (U1) induced therein is tapped and the enable signal (at 119) is derived when the predetermined value is reached, as a result of which signal the power supply to the preceding winding section (210) viewed in the direction of the motion coordinate (w) of the rotor (2) is terminated and initiated at a next winding section (310).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile