Electron Devices: Chapter 5: Field Effect Transistors

Comparison of D-MOSFET and E-MOSFET

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Question: Differentiate between enhancement‒type and depletion‒type MOSFETs.

Comparison of D‒MOSFET and E‒MOSFET

1. Symbols

Depletion type:

Enhancement type:

2. Channel

Depletion type: Exists permanently.

Enhancement type: Channel is physically absent. It is induced after application of positive gate voltage above the threshold value for n‒channel enhancement type MOSFET and negative gate voltage above threshold value for p‒channel enhancement type MOSFET.

3. Operation

Depletion type: Can be operated in depletion mode as well as enhance mode.

Enhancement type: Can only be operated in enhance mode.

4. Current flow

Depletion type: Drain current flows on application of drain to source voltage, at V_GS = 0.

Enhancement type: Practically no current flows on application of drain to source, at V_GS = 0. Current flows only when V_GS is above threshold level.

Review Question

1. Differentiate between enhancement‒type and depletion‒type MOSFETs.

Electron Devices: Chapter 5: Field Effect Transistors : Tag: electronics : - Comparison of D-MOSFET and E-MOSFET

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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