公开(公告)号：EP4329194A1

公开(公告)日：2024-02-28

申请号：EP23190335.2

申请日：2023-08-08

申请人： Harman International Industries, Incorporated

发明人： DANYUK, Dimitri ,  SHIMIAEI, Danial

IPC分类号： H03F3/45

摘要： A fully differential amplifier (500) is provided. A first amplifying circuit (502) receives a first input voltage signal and provides a first output voltage signal. A second amplifying circuit (504) to receive a second voltage signal and to provide a second output voltage signal. A summing circuit (509) to provide a common mode component of the first input voltage signal and the second input voltage signal. A compensation circuit (540) to amplify the common mode component of the first input voltage signal and the second input voltage signal and output an injection signal. A common gain setting network (505) including a plurality of resistors to receive the injection signal and to interface with the first amplifying circuit (502), the second amplifying circuit (504), and the compensation circuit (540) to prevent the common mode component from being present in the first output voltage signal and the second output voltage signal.