After mounting the chips according to the circuit diagram, the voltage at VCC3V3 is not 3.3V, but 4.6V. After C46 is replaced from 22pF to 330pF, the voltage at VCC3V3 is 3.3V (the required voltage is
[i=s]This post was last edited by sunboy25 on 2021-6-3 11:15[/i]I would like to ask if anyone has the reference for active filters in Chapter 3 of Circuit Design Based on Operational Amplifiers and An
The national electronic competition is still difficult. Within the specified time, that is, 4 days and 3 nights, we need to make electronic competition questions with high standards and high requireme
[i=s]This post was last edited by Yunhu Congbai on 2022-9-3 15:28[/i]Ask for forgivenessIn fact, I had already received the board a long time ago, printed out the chip manual, and read it many times.I
I remember that the STC microcontroller has a chip that can be used for single-step simulation. I didn't expect Qinheng to be able to do it, so I tried it today and it works well.
It’s actually very s