#Butterworth filter circuit model analysis##Design analysis According to the article [Single-channel sonar receiver-active Butterworth filter](https://bbs.eeworld.com.cn/thread-1169545-1-1.html "Singl...
The PCB engineering files of the core route FPGA learning motherboard schematic diagram are open source and shared for students who need to download and study.Note that the learning board is different...
First, understand the concepts of virtual short and virtual short:
Virtual short: Since the voltage gain of the op amp is very large, the open-loop voltage gain of general-purpose op amps is generally...
The motor protector improves the reliability of motor operation and the requirements of system intelligence. Therefore, the reliable operation of the protector plays a decisive role. At the same time,...