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JFET as an Amplifier

JFET as an Amplifier: One of the applications of JFET as an Amplifier of input signal. In FET the weak signal is applied between gate and source and an amplified…

JFET Differential Amplifier – Circuit Diagram and its Workings

JFET Differential Amplifier - Circuit Diagram and its Workings: Many differential amplifiers are constructed with FETs because of the large impedance they present to the input signals—an exceptionally important property…

Common Gate JFET Amplifier and its AC Equivalent Circuit

Common Gate JFET Amplifier and its AC Equivalent Circuit: The circuit of a simple Common Gate JFET Amplifier is shown in Fig. 13.53 and its ac equivalent circuit is shown…

Common Drain JFET Amplifier or Source Follower

Common Drain JFET Amplifier or Source Follower: In the Common Drain JFET Amplifier circuit (also called the source follower), the output voltage is developed across source resistor RS. External load…

Common Source JFET Amplifier with AC Equivalent Circuit

Common Source JFET Amplifier with AC Equivalent Circuit: The Common Source JFET Amplifier Circuit configuration is the most widely employed configuration. It is because this configuration provides high input impedance,…

Tuned Amplifier Articles

Tuned Amplifier Articles: Tuned Amplifiers – Definition, Classification and Advantages: Amplifier amplifying a signal of specific frequency or narrowband of frequencies is known as tuned amplifier. Tuned amplifiers are mostly…

Differential Amplifiers Articles

Differential Amplifiers Articles: Dual Input Balanced Output Differential Amplifier: The dual input balanced output differential amplifier configuration is shown in Fig. 20.2. In the given circuit two input signals vin1…

Constant Current Source in Differential Amplifier

Constant Current Source in Differential Amplifier: An ideal current source provides a constant current regardless of the load connected to it. There are many applications in electronics for a circuit…