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:
Mar. 25, 2025
Filed:
Jun. 09, 2022
Applicant:
Cypress Semiconductor Corporation, San Jose, CA (US);
Inventors:
Assignee:
Cypress Semiconductor Corporation, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/42 (2007.01); H02M 7/217 (2006.01);
U.S. Cl.
CPC ...
H02M 1/4208 (2013.01); H02M 7/217 (2013.01);
Abstract
Controlling power factor correction (PFC) in a secondary-controlled alternating current (AC) to direct current (DC) (AC-DC) power adapter is described. In one embodiment, an apparatus includes a transformer, a primary-side controller coupled to the transformer, a PFC component coupled to the primary-side controller, and a secondary-side controller coupled to the transformer. The secondary-side controller is configured at least to obtain data informative of an amount of power, and control, based on the amount of power, a PFC operating mode of the PFC component.