ALEXANDRIA, Va., March 26 -- United States Patent no. 12,261,522, issued on March 25, was assigned to Cypress Semiconductor Corp. (San Jose, Calif.).
"Efficiency improvement for power factor correction based AC-DC power adapters" was invented by Hariom Rai (Bangalore, India), Arun Khamesra (Bangalore, India) and Aniket Shashikant Mathad (Bengaluru, India).
According to the abstract* released by the U.S. Patent & Trademark Office: "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 control...