Junction Field Effect Transistor (JFET)

Introduction of Field Effect Transistors Distinction between a BJT and FET Junction Field Effect Transistor (JFET) N Channel JFET Summary of JFET Operation Mutual or Transfer Characteristic of n-channel JFET Amplification Factor 𝝁 Definition of Parameters p-Channel JFET

Introduction of Metal Oxide Semiconductor Field Effect Transistor - Mosfet Terminals in MOSFET Physical structure of MOSFET MOSFET Working Operation Summary of Operation MOSFET - N Type MOSFET Operation How does Drain current flow MOSFET operation More about Threshold Voltage Current vs Voltage Characteristics - Derivation Non Ideal Current -Voltage Effects or Second Order Effects Short Channel Effects MOSFET Device Capacitances MOSFET Large and Small signal Model pMOSFET Small SIgnal Model To use MOSFET device as a Capacitor nMOSFET as Capacitor- Working

Single Stage Amplifiers Common Source CS Stage with Diode-Connected Load Circuit to measure the Equivalent Resistance Common Drain Stage or Source Follower Common Gate Amplifier Large Signal Behavior Calculation of Input Resistance of a Common Gate Stage

Inverter with Enhancement n- Type MOS as Load Inverter with Linear Enhancement Type Load

Junction Field Effect Transistor (JFET)

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Junction Field Effect Transistor (JFET):

The JFET is a 3 terminal device and the terminals are called:

Source (S)
Drain (D) and
Gate (G)

The symbolic representation of the JFET is shown in Figure 2 below.

The terminal Source may be considered as equivalent to the Emitter of a BJT, Drain may be considered as equivalent to Collector and the Gate terminal may be considered as equivalent to Base terminal of the BJT. But it may be noted that there is no Gate current flow in the JFET unlike in a BJT where there is a Base current flow across the device.

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Junction Field Effect Transistor (JFET)

Field Effect Transistors

Field Effect Transistors

Metal Oxide Semiconductor Field Effect Transistor - Mosfet

Metal Oxide Semiconductor Field Effect Transistor - Mosfet

Amplifiers

Amplifiers

Inverters

Inverters

Junction Field Effect Transistor (JFET)