Cpu Cooling Fan Circuit. The circuit is based on good old 555 timer ic. One for the positive or hot lead and one for the negative or ground.
I could not find much on how to make the the 4 wire cooling fans so i made this video for using the fan with a voltage controller. Pins 4 and 8 are connected to supply. The circuit is based on good old 555 timer ic.
Pins 4 and 8 are connected to supply.
Each of these wires serves a specific purpose. The circuit is based on good old 555 timer ic. Interest has been growing in integrated circuits for controlling the speed of cooling fans in personal computers and other electronic equipment. Circuit design of pc fan controller.
