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:
Mar. 20, 2001
Filed:
Nov. 24, 1998
Applicant:
Inventors:
Peter Kellendonk, Cologne, DE;
Hans-Michael Schuster, Haan, DE;
Assignee:
Ultrafilter GmbH, Haan, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 4/700 ;
U.S. Cl.
CPC ...
H01H 4/700 ;
Abstract
In a switched-mode regulator for operation of an electromagnet having a magnet coil using different supply voltages the operating voltage U,of the electromagnet is produced by means of a storage circuit including a storage choke (,). To achieve cost and space-saving operation of the electromagnet using different supply voltages U,, the storage choke also acts as the magnet coil of the electromagnet.