Which BJT terminal controls the amount of current flow?

Which BJT terminal controls the amount of current flow?

The base still controls current flow, but that current flows in the opposite direction — from emitter to collector. Instead of electrons, the emitter emits “holes” (a conceptual absence of electrons) which are collected by the collector.

What terminal of a transistor controls the flow of current?

FETs are devices with three terminals: source, gate, and drain. FETs control the flow of current by the application of a voltage to the gate, which in turn alters the conductivity between the drain and source.

What are the terminal in BJT?

The BJT (bipolar junction transistor) is a current-controlled electronic device main employed for amplification and switching purpose. It comes with three terminals called emitter, base, and collector. The small current at the base side is used to control the large current at the remaining terminals.

How is BJT a current controlled device?

A BJT is a current controlled device because its output characteristics are determined by the input current. A FET is voltage controlled device because its output characteristics are determined by the Field which depends on Voltage applied.

How many terminals FET?

A FET has four terminals named Source, Drain, Gate, and Body. Source: Source is the terminal through which the majority charge carriers are entered in the FET. Drain: Drain is the terminal through which the majority charge carriers exit from the FET.

How many terminal does a BJT have?

The Bipolar Junction Transistor (BJT) is a current controlled valve. The 3 terminals are named base, collector and emitter.

Is BJT a current controlled current source?

This effect can be used to amplify the input voltage or current. BJTs can be thought of as voltage-controlled current sources, but are more simply characterized as current-controlled current sources, or current amplifiers, due to the low impedance at the base.