Advantages and Disadvantages of Push Pull Amplifier
Advantages:
1. Even harmonics are absent in the
output.
2. The problem of core saturation and
non-linear distortions will not appear because of cancellation of D.C.
components of collector current.
4. The effect of ripple voltage of the
power supply due to inadequate filtering are balanced out because of flow of
ripple current in opposite direction in the primary of the output transformer.
Disadvantages:
1. Two transistors have to be used.
2. It requires two equal and opposite
voltages at the input. Therefore push pull circuit requires the use of driver
stage to furnish these signals.
3. If the parameter of the two
transistors are not the same, there will be unequal amplification of two halves
of the signal.
4. The circuit gives more distortion.
5. Transformer used are bulky and
expensive.
Thanks for the information
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