Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
这个运放的放大原理是怎样?看起来是一个增益是0dB的缓冲器,起到阻抗变换的作用吧?