公开(公告)号：US20230122394A1

公开(公告)日：2023-04-20

申请号：US17502689

申请日：2021-10-15

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Ramin ZANBAGHI ,  Lingli ZHANG ,  Wei XU ,  Justin RICHARDSON ,  John L. MELANSON

IPC: G01R19/25 ,  H03F3/217

Abstract: A system for sensing an electrical quantity may include a sensing stage configured to sense the electrical quantity and generate a sense signal indicative of the electrical quantity, wherein the electrical quantity is indicative of an electrical signal generated by a Class-DG amplifier configured to drive a load wherein the Class-DG amplifier has multiple signal-level common modes and a common-mode compensator configured to compensate for changes to a common-mode voltage of a differential supply voltage of the driver occurring when switching between signal-level common modes of the Class-DG amplifier.