公开(公告)号：US12132455B2

公开(公告)日：2024-10-29

申请号：US17647534

申请日：2022-01-10

Applicant: QUALCOMM Incorporated

Inventor： Te Yu Kao ,  Muhammad Hassan ,  Abdellatif Bellaouar

IPC: H03F9/00 ,  H03F3/24

CPC classification number: H03F3/245 ,  H03F2200/451 ,  H03F2200/537

Abstract: In certain aspects, an apparatus includes a first amplifier having a first output and a second output, and a transformer. The transformer includes a first switchable inductor coupled between the first output and the second output, a first capacitor coupled in parallel with the first switchable inductor, a second switchable inductor magnetically coupled to the first switchable inductor, a second capacitor coupled in parallel with the second switchable inductor, a third switchable inductor magnetically coupled to the first switchable inductor, and a third capacitor coupled in parallel with the third switchable inductor.