DC Motor Speed Controller allows controlling speed of a DC motor using a Pulse-Width-Modulated (PWM) DC voltage with a Duty Cycle fully adjustable from 0%-100%. The motor speed controller can provide a continuous current of 10A to your DC motor or other DC load. The circuit also includes a 20A fuse, with reverse connection of power supply and control voltage over-voltage protection function.

Important Notes :

An appropriately rated fuse (rated a little higher than the maximum current you expect to draw) is recommended to ensure safe operation. The controller is with reverse-polarity protection and the fuse will be damaged if connect the supply voltage with wrong polarity. Double check all connections before applying power and always turn off the power supply before making any wiring changes.