I'm an electronics newbie.

The part I'm talking about is this:

DC 10-50v 12V 24V 48V 3000W 60A amps DC Motor Speed Control PWM HHO Controller

My question is, can this type of part be used to control brushless DC motors?

  • $\begingroup$ What does "HHO" stand for? $\endgroup$
    – Ben
    Feb 16 '15 at 20:19

Practically all brushless motors require 3 independent power connections, each one at the appropriate frequency and 3 different phases. Those 3 power cables are typically connected to a brushless ESC.

Practically all DC motor speed controllers (including DC electronic speed controllers for brushed DC motors), including the one you link to, only have 2 output power connections.

The 2 outputs of a DC motor speed controller are not enough to drive the 3 inputs of a brushless motor

image of brushless motor, showing the 3 thick cables coming out of the motor

(photo from "RC Hobby Mysteries: What is Brushless Motor?")

enter image description here

(diagram from "Esky Helicopters FAQ: Brushed vs Brushless Motors")

DC motor speed controllers -- with 2 output power connections -- work with brushed DC motors that have 2 power connections.

Brushless ESCs -- with 3 output power connections -- work with brushless motors that have 3 power connections.

As far as I can tell, any other connection between any two of a DC motor speed controller, a brushless ESC, a brushed DC motor, and a brushless motor, won't do anything useful.


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