Explain the basic operation of an n-channel jfet

Reference no: EM131593514

Assignment

Answer /discuss the following 5 questions. Your answers should be 2-3 sentences long with detailed explanations. Also solve the following 4 problems and include detailed formulations, calculations and explanations.

Questions:

1) Is this a correct statement: "The JFET operates with a forward-biased pn junction"?

2) Explain the basic operation of an n-channel JFET.

3) Explain the regions of operations in a JFET.

4) How do you compare the "Pinch-off voltage" and "Cutoff Voltage".

5) How the IDSS is defined? And what does it stand for?

Problems:

1) Show how to connect bias voltages between the gate and source of the JFETs (a) n-channel and (b) p-channel).

2) A certain JFET datasheet gives VGS(off) = -8 V and IDSS = 10 mA. When VGS = 0, what is ID for values of VDS above pinch off? VDD = 15 V.

3) IDSS = 20 mA and VGS(off) = - 6 V for a particular JFET.

(a) What is ID when VGS = 0 V?
(b) What is ID when VGS = VGS(off)?
(c) If VGS is increased from - 4 V to - 1 V, does ID increase or decrease?

4) For each circuit below, determine VDS and VGS.

Reference no: EM131593514

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