PWM controlled DC power supply up to 20 V

Other Hardware Motors, Mechanics, Power and CNC
1

Hi, newbie here (especially in terms of electronic, I can do programming) :slight_smile:

I am looking for easiest solution to create an Arduino (PWM) controlled DC supply up to 20V @ 200 mA (I want to control vibration motors).
Ideally something I could just connect to 24V PSU (or 220V plug) and one of Arduinos PWM pins.

I was looking through some sketches to control LM2596, but it would save me a lot of time it there is some sort of chip with all this integrated. I found motor speed controllers, but they to have PWM output.

Thanks

2

You don't normally control power to motors by adjusting an analog voltage, you apply PWM, its much
simpler and more efficient. 24V -> motor -> nMOSFET -> GND
The motor needs a free-wheel diode across it, and MOSFET should be logic level for use from 5V.