Running multiple motors that have different rated voltage using same source

Thread Starter


Joined Dec 29, 2022
I'm making an RC car project and I'm using 4 motors, 2 operate at 12-14 rated voltage and the other two operate at 3-6 rated voltage and I'm using a motor shield to control the motors I want to know how much input voltage I need, and do I have to regulate the voltage supplied to the 3-6 voltage motors? and if so, how could I do it?


Joined Feb 20, 2016
You will be bet suited to use a switch mode buck converter for efficiency. First 'tho, what is the max current rating of the motors you are going to use?


Joined Apr 2, 2020
You might be able to get away with simply using a PWM controller for the lower voltage motors and keep duty cycle under 50%. Keep the frequency of the PWM reasonably high (> 1kHz) so the max single pulse is not going to fry a winding.