DC Motor Speed Controller PWM Motor Driver 3-35v 90W 5A

Details

This is a PWM driver for speed control of smaller DC motors up to 90W or 5A

There are two input voltage ranges, the default is 5 to 35v, if you need to use 3-5v instead then close the solder jumper on the bottom. 

Screw terminals for connecting your supply and motor. 

Of course you could use this for other things that you want to PWM control, like heating resistors, leds, umm… probably other things I can’t think of.

Turn the knob full anti-clockwise for off (switched) and full clockwise for 100%

PWM frequency is 10kHz, maximum control power 90W, the standby current is 15mA  

Note that simple PWM drivers like this do not compensate for motor load if it chanegs, if you have a variable load applied to your motor then this may not work that well for you unless you are adjusting the knob to match the load as it changes like a throttle.  Simple speed controllers like this are best suited to relatively constant load situations, like fans, circulating pumps, simple constant rotation like in window displays, turntables, that kind of thing.