What are the applications of common collector amplifier?

What are the applications of common collector amplifier?

Applications

• It is useful as an impedance matching device since its input impedance is much higher than its output impedance.
• It is used in digital circuits with logic gates.
• It is used as a switching circuit.
• It is also used for cascade amplifier circuit isolation.

What are the application of common base?

In electronics, a common-base (also known as grounded-base) amplifier is one of three basic single-stage bipolar junction transistor (BJT) amplifier topologies, typically used as a current buffer or voltage amplifier.

What are the application of BJT?

The main basic function of a BJT is to amplify current it will allow BJTs are used as amplifiers or switches to produce wide applicability in electronic equipment include mobile phones, industrial control, television, and radio transmitters. There are two different types of BJTs are available, they are NPN and PNP.

What is common collector BJT?

The Common Collector Amplifier is another type of bipolar junction transistor, (BJT) configuration where the input signal is applied to the base terminal and the output signal taken from the emitter terminal. Thus the collector terminal is common to both the input and output circuits.

What does a common emitter amplifier do?

Common-emitter amplifiers give the amplifier an inverted output and can have a very high gain that may vary widely from one transistor to the next. The gain is a strong function of both temperature and bias current, and so the actual gain is somewhat unpredictable.

What is the advantage of common collector amplifier?

➢ The common-collector (CC) amplifier is usually referred to as an emitter-follower (EF). The input is applied to the base through a coupling capacitor, and the output is at the emitter. The voltage gain of a CC amplifier is approximately 1, and its main advantages are its high input resistance and current gain.

What are the advantages of common collector amplifier?

What is a common collector amplifier?

The common collector amplifier is one of the three basic BJT amplifier topologies. In this circuit, the base of the transistor serves as an input, emitter as the output and the collector is grounded that is, common for both emitter and base.

What is common collector and common base circuit?

The Common collector circuit is widely used as a buffer. It is called as Emitter-follower. The emitter voltage follows that of the base. This gives a high input impedance and low output impedance. It has grounded collector. The Common base circuit provides low input impedance and high output impedance.

What are the applications of the common base amplifier circuit?

The following are the applications of the common base amplifier circuit. It is used in moving coil microphones Preamplifiers. It is used in UHF and VHF RF amplifiers.

What is the difference between common emitter and common collector?

The Common Emitter circuit is most widely used configuration. This circuit has grounded emitter. This circuit gives a medium level input impedance and output impedance. Voltage gain and current gain are medium, and the output reverses the input. The Common collector circuit is widely used as a buffer. It is called as Emitter-follower.