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Self-Oscillating

2019-07-11

Self-oscillating, or self-excited oscillation refers to the constant and continuous oscillation generated by itself without the excitation signal. For example, when no input signal applied to the input terminal of the amplifier, there is still an output signal with a certain amplitude and frequency at the output terminal, which is self-oscillating.

Frequency compensation (also known as phase compensation) can be used to eliminate self-oscillation. Common compensation methods include capacitance hysteresis compensation, RC lag compensation and Miller effect compensation.