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:
Jun. 14, 2022
Filed:
Nov. 11, 2016
Applicant:
Epcos Ag, Munich, DE;
Inventor:
Michael Weilguni, Hagenberg, AT;
Assignee:
EPCOS AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 41/107 (2006.01); H05H 1/24 (2006.01); H03F 3/217 (2006.01); H01L 41/04 (2006.01);
U.S. Cl.
CPC ...
H01L 41/044 (2013.01); H01L 41/107 (2013.01); H03F 3/2176 (2013.01); H05H 1/24 (2013.01);
Abstract
A control circuit and a method for controlling a piezoelectric transformer are disclosed. In an embodiment the control circuit includes an inductor and a control unit, wherein the control circuit is configured to apply a voltage with a periodic waveform to a piezoelectric transformer, wherein a period duration of the voltage is specified by a control frequency and adjust the control frequency of the applied voltage as a function of an average current intensity of a current flowing through the inductor.