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. 20, 2016
Filed:
May. 28, 2015
Infineon Technologies Austria Ag, Villach, AT;
Kennith Kin Leong, Villach, AT;
Klaus Krischan, Graz, AT;
Infineon Technologies Austria AG, Villach, AT;
Technische Universität Graz, Graz, AT;
Abstract
An electronic device includes a synchronous rectification circuit having an actively controlled switching element through which resonant current flows during operation. The actively controlled switching element is disposed in a package which adds stray inductance to a main current path of the synchronous rectification circuit. The electronic device also includes a fixed inductor magnetically coupled to the stray inductance or an additional inductance in series with the stray inductance so that the fixed inductor is not in the main current path of the synchronous rectification circuit and change in current through the inductance to which the fixed inductor is magnetically coupled induces a reference voltage at the fixed inductor which is in phase with a zero crossing point of the resonant current at different switching frequencies of the actively controlled switching element. A corresponding method of controlling the electronic device is also described.