You are here

ADC input protection proposal

1 post / 0 new
Last seen: 2 years 7 months ago
VESC Original
Joined: 2020-06-04 17:15
Posts: 1
ADC input protection proposal

I managed to brake STM32 MCU by over or under voltage to ADC input. I had jumper wires connected to ADC, 3.3V and GND. Touching ADC with soldering station tip broke the MCU.

After the damage I checked the schematic and noticed that there is not any protection for ESD or over-/undervoltage transients.

Would it be possible to add something to next hardware versions? For example zener-diodes and some TVS?