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:
Jun. 28, 1983
Filed:
Mar. 06, 1980
Wilhelm Benecke, Bad Neustadt, DE;
Heinz Rosenberg, Vienna, AT;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
A static magnetic frequency multiplier has iron structures which form a closed magnetic circuit and which carry a polyphase primary winding having p.sub.1 pole pairs distributed in slots. The winding legs, pitch, interleaving of circuits, setting of the slots, and the like, of the primary winding are so constructed that a voltage is induced at its terminals only by the fundamental of a field which has the pole pair number p.sub.1. In addition, the iron structures carry a secondary winding with the pole pair number p.sub.2 which is an uneven multiple of p.sub.1 and which is distributed in slots, being magnetically coupled to the primary winding. The secondary winding is designed so that no voltage is induced at its terminals by the fundamental of a field having the pole pair number p.sub.1. The iron structures are designed so that either the layer containing the slot teeth or the magnetic return path is subjected, at least in part, to a pronounced magnetic saturation by the magnetic field produced by the primary winding when it is supplied with the nominal primary voltage at the nominal frequency.