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:
May. 26, 2015
Filed:
Sep. 18, 2013
Tord Bengtsson, Vasteras, SE;
Henrik Johansson, Vasteras, SE;
Stefan Roxenborg, Vasteras, SE;
Joseph Menezes, Vasteras, SE;
Zoltan Nagy, Vasteras, SE;
Mikael Sehlstedt, Arboga, SE;
Tord Bengtsson, Vasteras, SE;
Henrik Johansson, Vasteras, SE;
Stefan Roxenborg, Vasteras, SE;
Joseph Menezes, Vasteras, SE;
Zoltan Nagy, Vasteras, SE;
Mikael Sehlstedt, Arboga, SE;
ABB Research Ltd., , CH;
Abstract
A method for linearizing voltage transmission through a transformer including a magnetic core and, input and output windings. A measurement signal is supplied to the input winding at a first frequency and an output signal is measured at the output winding of the transformer, wherein the voltage of the measurement signal may be so low that the transformer operates in a non-linear region. The method includes, for a conditioning signal, selecting a second frequency different from the first frequency, defining an amplitude value of the conditioning signal and supplying the conditioning signal to the input winding at the second frequency with the defined amplitude value so that the transformer operates in its linear region.