场效应管夹断电压的作用及测试

The Influence and Test on the Field Effect Tube's Pinch-off Voltage

根据夹断电压能确定可变电阻区与饱和区的分界点，使场效应管可靠地工作在饱和区的原理。研究了夹断电压的测试问题，介绍了测试场效应管夹断电压的方法，进而找出预夹断电压，由此即可确定场效应管的饱和区。

On the grounds of the pinch-off voltage, the cut-off point of variable resistance area and saturation area can be fixed, so the field effect tube can reliably work in the saturation area. Then it introduces the test method of pinch-off voltage with the filed effect tube.