Sihai network

What is the static operating point of the amplifier circuit

The static working point of the amplifier circuit refers to that the amplifier is in the no signal input state (static). The purpose of setting the static working point is to ensure that when the amplified AC signal is added to the circuit, whether it is positive half cycle or negative half cycle, it can meet the triode amplification state of positive bias of the transmitting junction and reverse bias of the collecting junction.

The static operating point can be changed by changing the circuit parameters, which can set the static operating point. If the static operating point is not set properly, saturation distortion (high static operating point) or cut-off distortion (low static operating point) may occur when amplifying AC signal.

The static operating point can determine the static value of the voltage and current of the amplification circuit. Taking an appropriate static operating point can prevent the circuit from nonlinear distortion and ensure good amplification effect. (FangDaDianLuDeJingTaiGongZuoDianShiShenMe)