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. 24, 2002
Filed:
Nov. 27, 2000
Applicant:
Inventors:
Fritz Schmider, Hornberg, DE;
Stefan Lukenich, Singen, DE;
Assignee:
Papst-Motoren GmbH & Co. KG, St. Georgen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 7/36 ;
U.S. Cl.
CPC ...
H02P 7/36 ;
Abstract
An electronically commutated direct-current motor has a permanent-magnet rotor ( ), a stator ( ) that has at least one drive winding ( ), and an H-bridge circuit ( ) in which two bridge elements are configured as transistors ( ) and the other two bridge elements as resistors ( ), the drive winding ( ) being arranged on the diagonal of said H-bridge circuit ( ); and it has a commutation circuit for alternate activation and deactivation of the two transistors ( ) of the H-bridge circuit ( ). The motor operates quietly and with unusual reliability, and is well adapted for driving a fan.