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:
Nov. 01, 1988
Filed:
Jul. 30, 1987
Yoshiaki Nishiyama, Hiratsuka, JP;
Hidesumi Nakahashi, Kamakura, JP;
NCR Corporation, Dayton, OH (US);
Abstract
In an apparatus such as a transformer comprising at least a magnetic core and a main winding, a method and apparatus for biasing of a magnetic material is characterized in that an auxiliary winding N2 is added to said magnetic core 2 and a predetermined amount of demagnetizing current, which will reduce the magnetic flux caused by said main winding N1 by a predetermined amount, is caused to flow through said auxiliary winding N2 in synchronism with an increase in the magnetic flux caused by said main winding N1 to prevent the magnetic saturation of the magnetic core during the time that the magnetic flux caused by the main winding is increasing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile