Question
Download Solution PDFBy combining two Class B amplifiers, we can build ____
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFClass-B push-pull amplifier:
- The combination of two class B amplifiers working together is called push-pull operation.
- Push-Pull is a power amplifier that is used to supply high power to the load.
- It consists of two transistors in which one is NPN and another is PNP.
- One transistor pushes the output on a positive half-cycle and the other pulls on a negative half cycle. This is why it is known as a push-pull amplifier.
- The push-pull Amplifier circuit is as shown:
Features of Push-Pull:
- Class AB type Push – Pull amplifiers suffer from the cross–over distortion.
- Class B type amplifiers are designed to overcome this problem. It can eliminate distortions and noise that have been occurred in the circuit.
- Due to the Class B operation, their collector efficiency is quite high (> 50 %)
- It is capable of generating high gains.
- There are certain cases where these amplifiers produce harmonic distortions. So depending upon the requirement of the circuit the amplifier is chosen.
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