公开(公告)号：US20200321913A1

公开(公告)日：2020-10-08

申请号：US16375765

申请日：2019-04-04

Applicant: QUALCOMM Incorporated

Inventor： Wu-Hsin CHEN ,  Rui XU ,  Marco VIGILANTE ,  Li LIU ,  Xiaotie WU

IPC: H03B5/12

Abstract: In certain aspects, an apparatus includes a transformer including an input inductor and an output inductor, wherein the input inductor is magnetically coupled to the output inductor. The apparatus also includes a transconductance driver configured to drive the input inductor based on an input signal. The apparatus further includes a feedback circuit configured to detect an output voltage swing at the output inductor, generate a regulated voltage at the input inductor, and control the regulated voltage based on the detected output voltage swing.