The Junction Field Effect Transistor (JFET)

Chapter The Junction Field Effect Transistor (JFET)

Complete Electronics Self Teaching Guide with Projects
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Complete Electronics Self Teaching Guide with Projects

  • THE JUNCTION FIELD EFFECT TRANSISTOR JFET123100 kΩ1 kΩβ = 50VC10 VFIGURE 3.27QUESTIONSA. IB 5 IC 5 B. VR 5 C. VC 5 ANSWERSA. IvoltskmAB5V51010001 ImAmAC535500 15B. VR 5 1 kΩ 3 5 mA 5 5 voltsC. VC 5 10 volts–5 volts 5 5 voltsNOTE The output voltage in this problem is half of the supply voltage. This condition is important in AC electronics and is covered in Chapter 8.THE JUNCTION FIELD EFFECT TRANSISTOR JFET 28   Up to now, the only transistor described has been the BJT. Another common tran-sistor type is the JFET. Like the BJT, the JFET is used in many switching and amplifica-tion applications. The JFET is preferred when a high input impedance circuit is needed. Book Author c03 V1 07/04/2012 2:56 PM c03.indd 1237/4/2012 3:05:12 PM