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. 09, 1986
Filed:
Sep. 26, 1980
Applicant:
Inventors:
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
318138 ; 318254 ;
Abstract
A DC motor is commutated by magnetically controllable electronic switches in the form of integrated semiconductor circuits. Each switch comprises a first switching path between a first input terminal and an output terminal and a second switching path between a second input terminal and the output terminal. The two switching paths are controlled by the magnetic field of the rotor such that either the one or the other switching path is closed and that both switching paths are open in positions intermediate between these two positions.