I'm using a MOFSET IRF9540, 9V battery and 10k Potentiometer (I also have a 50k) and I want to reduce the RPM of my 3-4.5V motor for my RC car because its incredibly fast. I looked at many circuits online on how to do this but they all are using 12V batteries and 12V motors.. Adjusting my potentiometer hardly does anything but I need it to spin slower; please help me! I also have 100k ohm resistors or any kind if necessary -- I just need help building my circuit.
Thank You!!!
I didn't find the right solution from the Internet.