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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. 3.        The output is double as that offered by a single ended stage. 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 tr...

This amplifier circuit is very popular audio power amplifier circuit type. We call it a complementary since the final transistors is an NPN-PNP pair, each with the same characteristics. This circuit produce an AB class amplifier, since each transistor works in slightly more than half cycle of the signal. There is overlap area when both transistor conduct a current, and this area will be around its stationary current (when the input signal is zero). This circuit is also known as push-pull amplifier circuit since each transistor in the pair is working alternatively. Here is the schematic diagram of the circuit:  Complementary (Push-Pull) Power Amplifier Circuit Diagram If you liked this article,Take a few Seconds to Share this and leave comments