ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,494,755, issued on Dec. 9, was assigned to Qorvo Texas LLC (Richardson, Texas).
"Apparatus and method of power management using envelope stacking" was invented by Susanne Paul (Billerica, Mass.), Akhil Garlapati (Billerica, Mass.) and Yan Li (Billerica, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An envelope stacking power amplifier system reduces current for a given output power level without sacrificing the ability to support large voltage swings at saturation and therefore increases efficiency at the maximum linear operating power and all power levels below that. The system includes a stack/unstack controller including circuitry configured to...