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:
Aug. 20, 2019
Filed:
Oct. 08, 2018
Infineon Technologies Austria Ag, Villach, AT;
Shu Fan Lim, Singapore, SG;
Infineon Technologies Austria AG, Villach, AT;
Abstract
A method of operating a power supply having a PFC stage and an LLC converter coupled to the PFC stage includes: operating the PFC stage in CCM in a steady-state mode of the power supply using a current mode controller, by implementing a current control loop which has AC input voltage measurements as an input; operating the PFC stage in DCM for at least part of a burst mode of the power supply using a voltage mode controller, by implementing a voltage control loop which does not have AC input voltage measurements as an input; and modifying the voltage control loop if an output of the voltage mode controller in burst mode and which is proportional to power in average current mode control falls outside a predetermined range.