Electron Devices: Chapter 5: Field Effect Transistors

Applications of JFET

Home | Department: ECE Department | Ist Year | Subject: Electron Devices |

Questions: 1. State the applications of JFET. 2. Briefly describe some applications of JFET.

Applications of JFET

In general, like BJTS the FETS can be used in switch, digital and linear amplifier applications. Let us see specific applications of FET.

• Since JFET has high input impedance and low output impedance they are used as a buffer in measuring instruments.

• Because of low noise, they are used in RF amplifiers in FM tuners and in communication equipments.

• Since the input capacitance of FET is low, it is used test in cascade amplifiers in measuring and equipments.

• FETs are used in mixer circuits in FM and TV receivers, and communication equipments. Since use of FET reduces inter modulation distortion.

• Because of low frequency drift they are used in oscillators.

• FETs are also used in low frequency amplifiers.

• FETs are used in digital circuits.

Review Questions

1. State the applications of JFET.

2. Briefly describe some applications of JFET.

Electron Devices: Chapter 5: Field Effect Transistors : Tag: electronics : - Applications of JFET

Home | Department: ECE Department | Ist Year | Subject: Electron Devices |

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Electron Devices: Chapter 5: Field Effect Transistors

Field Effect Transistors - Symbol, Features, Classification

Construction of n-Channel JFET

Construction of p-Channel JFET

Operation of p-Channel and n-Channel JFET

Characteristics of JFET

JFET: The Pinch-off Voltage

Characteristics Parameters of JFET

Drain Current Equation of JFET

Comparison of BJT and FET

Applications of JFET

MOSFET

Depletion MOSFET (D-MOSFET) - Construction, Operation, Characteristics, Parameters, Type, Symbols

Enhancement MOSFET (E‒MOSFET) - Construction, Operation, Characteristics, Circuit Diagram, Parameters, Type, Symbols, Example Solved Problems

Channel Length Modulation in MOSFET

Comparison of MOSFET with JFET

Comparison of D-MOSFET and E-MOSFET

Comparison between N-Channel and P-Channel MOSFET

Comparison between N-channel and P-channel JFET

Comparison of BJT with MOSFET

MOS Capacitor

nMOS and PMOS - Advantages, Disadvantages, Applications, Inverter

CMOS - Advantages, Disadvantages, Applications, Basic Operation as an Inverter

Field Effect Transistors: Important Example Solved Problems - Electron Devices

Field Effect Transistors: Two Marks Important Questions and Answers - Electron Devices

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