I have a 3W fan(12V) that I need to control using a potentiometer. I necessarily don't have to use the pot directly but the user has to turn a knob to control the fan speed. I looked at various pots with the ratings I need but they are too big and they will reduce the torque on the fan motor. Is there a very simple PWM circuit I could use with the pot that doesnt need a uC or high standard stuff?
Another part of the question is that I need to vary an output of mine from 0V to 12V efficiently using a pot. what resistance value pot should I use? It will work as a voltage divider.
Thanks.
Another part of the question is that I need to vary an output of mine from 0V to 12V efficiently using a pot. what resistance value pot should I use? It will work as a voltage divider.
Thanks.