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大多数振荡电路都带有一个非线性的波幅控制,它将振荡保持在所要求的波幅内,使之有最小的输出失真。一种方案是采用输出正弦波的振幅来控制一个电路元件的阻
Most oscillating circuits have a non-linear amplitude control that keeps the oscillations within the required amplitude for minimum output distortion. One solution is to use the amplitude of the output sine wave to control the resistance of a circuit element