This is a class-B amplifier, or push-pull follower. There is no voltage gain, but it amplifies the current by 100 times. It is more efficient than a simple class A, which always conducts, even when there is no input at all. This dissipates a lot of power. The push-pull amplifier only draws current proportional to the output signal. One disadvantage of push-pull is crossover distortion. The output signal is distorted whenever it crosses ground. We can improve this. Improved push-pull This is a class-B amplifier, or push-pull follower. There is no voltage gain, but it amplifies the current. One disadvantage of the simple push-pull class is crossover distortion. This example is a big improvement over the previous one. In the previous one, each half of the circuit conducts more than half of the waveform. In this circuit each half conducts a small amount into the other half. This improves linearity (reducing distortion), but it is not as efficient; when there is no output, it still draws current.
This page is a utility for simulating усилитель класса b или двухтактный повторитель с искажением online with specified initial values.










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