实用低频功率放大器原理图和PCB图文件，包含PDF和Altium designer 完整工程源文件.可用于毕设等-Practical low-frequency power amplifier schematic and PCB image files, including PDF and Altium designer complete project source files.

这个电路模块是一个低通滤波器模块，可以过滤掉高频信息，保留低频信息，电路很好的实现功能。-The circuit module is a low pass filter module, which can filter out the high frequency information and keep the low frequency information.