The JFET as an Amplifier

Chapter The JFET as an Amplifier

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

  • THE JFET AS AN AMPLIFIER3613. 1 mA4. 4.7 volts5. 5.3 volts (bias point)6. With capacitor: 376Without capacitor: 107. 57 Hz (approximately)THE JFET AS AN AMPLIFIER31  Chapter 3 discussed the JFET in problems 28231, and Chapter 4 discussed the JFET in problems 37241. You may want to review these problems before answering the ques-tions in this problem. Figure 8.30 shows a typical biasing circuit for a JFET.VGGVGSVDSRD+VDDRGFIGURE 8.30QUESTIONSA. What type of JFET is depicted in the circuit?B. What value of VGS would you need to turn the JFET completely ON?C. What drain current flows when the JFET is completely ON?Book Authorc08V107/04/2012 3:18 PM c08.indd 3617/4/2012 3:20:22 PM