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. 24, 2025
Filed:
May. 12, 2022
Apple Inc., Cupertino, CA (US);
Yantao Song, Northville, MI (US);
Chanwit Prasantanakorn, Santa Clara, CA (US);
Bharat K Patel, San Martin, CA (US);
Abby Cherian, Fremont, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A power converter can include a rectifier that receives an AC input voltage and produces a rectified output voltage, a power factor correction (PFC) converter having an input coupled that receives the rectified output voltage of the rectifier and an output that provides an intermediate DC bus voltage, a DC-DC converter having an input that receives the intermediate DC bus voltage and produces a regulated DC output voltage, and control circuitry for the PFC converter stage that includes a relatively slower control loop that controls the PFC converter during steady state load conditions and at least one relatively faster control loop that controls the PFC converter during transient load conditions.