A few weeks ago, I saw a reader’s question about how to run PS3 cooling fans using an external electronics circuit. At the time I was busy with some other projects. The other day, I decided to put my ...

Cooling fans are widely used and are extremely important in electronic devices, especially for those constantly running. That includes power supplies, servers, computers, and telecommunication ...

Proprietary components are the bane of anyone who dares to try and repair their own hardware. Nonstandard sizes, lack of labeling or documentation, and unavailable spare parts are all par for the ...

It's recently occurred that I need to drive more fans than my motherboard has fan headers. These are four-pin PWM fans and the motherboard headers are also four-pin. As I understand it, the pins are ...

What is pulse width modulation? Pulse width modulation (PWM) is a powerful digital technique for controlling analog circuits with a microprocessor’s digital outputs. PWM is employed in a wide variety ...