A constant current source circuit based on TL431 is designed, as shown in the figure below. The PMOS BSS84P is selected in the figure, and its on-voltage is -1~-1.2V. However, in actual debugging, it ...
Has anyone uploaded this book? I have studied it since my freshman year in college and now I am working in society. It is still very useful and I have learned a lot from it. I uploaded the English ver...
When I was copying PCB data, after copying a PCB file, I opened it directly, but it prompted that there was a license error. The final result was that this PCB could not be saved. I could perform basi...
1. Introduction
This is my first review post on EEWorld, and also the first development board of Lingdong MM32 that I review. Haha, it’s my first time, so I’ll say more. I’ve come into contact with ma...
I bought Zhou Ligong's development board, and used the UDA1341TS codec. It can play audio normally, but cannot record audio. I used a mic to input through channel 1 of the UDA1341, but I couldn't dete...
Dear experts in EDA/IC: I have a question here. When I do automatic PCB routing, other components can be routed automatically, but the lines around PIC16F 946 cannot be routed automatically (in DXP). ...
Power technology
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