Cooling fan is an essential part in almost all power electronics systems. Here is a simple circuit for monitoring the instrument cooling fan activity to raise an audio-visual alert incase of the fan ...

Well, I'm using Noctua fans which are damned well made. I was originally going with Redux fans, but I found them too noisy, so I'm going to return them in favour of NF-S12A PWM which come with a 1:2 ...

I've been wiring up some standard 80mm and 120mm fans directly to a 9v power supply. The 80mm were marked red, black and yellow but the larger cheap 120mm fans I got (mistake) are all black and I need ...

A CPU fan is more than just a fan. It is attached to CPU with power pins/wires and a sensor that tells it how fast to run. If the CPU is heating, the sensor will make the fan run faster. As such, the ...