Semi-passive Cooling of Computer Power Supply

Hello! The basic idea is that if a power supply with a large power reserve, then there is no need for constant rotation of the fan (just like it was done in the CPU fan). Therefore, if it is reliable to monitor the temperature of the power supply unit elements, then you can stop the fan for a while. And gradually increase the fan speed.
I decided to make a fan speed regulator on Arduino nano based on ATMEGA168PA, out of different pieces of other people’s projects I made my own.”