本文首先对一些传统方法进行扼要介绍和讨论。然后通过分析,发展了一种简单方法构成极底输入电容电压跟随器,无须复杂的电路结构和调节过程,即可用分立元件做成输入电容不超过0.1pf 频响达200KHZ 的电压跟随器,性能超过某些复杂昂贵的进口跟随器,因而是一种有价值的方法。 This article starts with a brief introduction and discussion of some traditional methods. And then through the analysis, developed a simple method to form the polar bottom input capacitor voltage follower, without complex circuit structure and adjustment process, which can be made of discrete components with an input capacitance of not more than 0.1pf frequency response up to 200KHZ voltage follower, performance It is a valuable method over some complex and expensive inlet followers.