What is a emitter follower called?

In electronics, a common collector amplifier (also known as an emitter follower) is one of three basic single-stage bipolar junction transistor (BJT) amplifier topologies, typically used as a voltage buffer.

What is emitter follower explain in detail?

The emitter follower is a current amplifier that has no voltage gain. The emitter follower is a current amplifier that has no voltage gain. Its most important characteristic is that it has high input impedance and low output impedance. This makes it an ideal circuit for impedance matching. Circuit details.

What is the function of emitter follower?

Emitter follower is a negative current feedback circuit. Emitter follower configuration, also known as Common collector, provides high input impedance and low output impedance. So they are used for the purpose of impedance matching.

What is a follower amplifier circuit?

A voltage follower (also known as a buffer amplifier, unity-gain amplifier, or isolation amplifier) is an op-amp circuit whose output voltage is equal to the input voltage (it “follows” the input voltage). A voltage follower circuit has a very high input impedance.

What does emitter mean in physics?

emitter – the electrode in a transistor where electrons originate. electrode – a conductor used to make electrical contact with some part of a circuit. electronic transistor, junction transistor, transistor – a semiconductor device capable of amplification.

What is an electrical emitter?

Emitter – The section that supplies the large section of majority charge carrier is called emitter. The emitter is alway connected in forward biased with respect to the base so that it supplies the majority charge carrier to the base.

What is the gain of emitter follower?

In practice, the voltage gain of an emitter follower is between 0.8 and 0.999.