A device whose output function is proportional to the derivative of the input function with respect to one or more variables, e.g., a resistance-capacitance network used to select the leading and trailing edges of a pulse signal.

• 一种器件，其输出函数与一个或多个变量的输入函数的导数成比例。例如，用于选择脉冲信号的前沿和后沿的阻容网络。