在交流放大电路中,由于静态工作点设置不合适或输入信号幅度过大,使被放大信号幅度超出了晶体管特性曲线线性区,出现非线性失真。交流放大电路非线性失真主要有饱和失真和截止失真。电路中出现失真后常用检查方法是用示波器进行检查。但对于无示波器时该怎样检查呢?下面介绍一种用万用表定性地 In the exchange amplifier circuit, due to the inappropriate setting of the static operating point or the input signal amplitude is too large, the amplified signal amplitude beyond the linear region of the transistor characteristic curve, non-linear distortion. AC amplification circuit nonlinear distortion mainly saturated distortion and cut-off distortion. Circuit commonly used in the inspection method is to check the oscilloscope distortion. But how to check the oscilloscope? Here is a qualitative use of multimeter