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:
Jul. 24, 2018
Filed:
Nov. 14, 2016
Infineon Technologies Austria Ag, Villach, AT;
Xiaowu Gong, Singapore, SG;
Infineon Technologies Austria AG, Villach, AT;
Abstract
A power converter includes a controller. The controller is configured to charge a capacitor of the controller based on a peak voltage applied to a primary-side winding of a transformer of the power converter. The controller is also configured to apply a discharge current defined by a first amount of current to the capacitor, and responsive to discharging the capacitor to a reference voltage level, determine, based on a feedback voltage generated by a primary-side auxiliary winding of the transformer, whether a discharge time of the capacitor is equal to a discharge time of the secondary-side winding. The controller is further configured to responsive to determining that the discharge time of the capacitor is not equal to the discharge time of the secondary-side winding, adjust the discharge current from the first amount of current to a second amount of current. The second amount of current is indicative of a predicted discharge time of a secondary-side winding of the transformer.