1. According to the query of Huaqiang Electronic Network, the complementary or quasi-complementary follower circuit can realize power following, amplify the input signal and control the output signal.

2. Complementary or quasi-complementary follower circuit can improve the stability of the circuit, and through the design of complementary or quasi-complementary follower circuit, the stability of the circuit can be improved, and the influence of the change of component parameters in the circuit on the circuit performance can be reduced.