I have been trying to wrap my head around the following. And, it might be a little over my head. A few months ago I bought a DHB-10 motor controller (#28231) and (2) 6-15V gear motors with encoder (#28819). I am trying to better understand what I need in order to power the motors and controller. Looking at the motor, the label says “DC/6V”. Looking at the data sheet it says “6-15V”. I assume that means that it is a 6V motor, but can be powered up to 15V. I am also a little puzzled at what current is required to drive the motors. The data sheet says “3.5A @6V
(>5A @ 12V)”. Where should I aim? Is it something like 6V -> 3.5A x 2 motors = 7A power supply? Or, 12V -> 5A x 2 motors = 10A power supply? Do you factor a slightly higher amperage as a safety factor? I am concluding that the motor draws more current at higher voltages (if my terminology is correct).
I am thinking of testing this all on a table top so would be looking to plug something into a standard wall outlet (110V).
Part 2 of this question:
If I understand the data sheet on the motor controller, it receives it’s power from the same 6-24V that drive the motors. If I connect the motor controller to a Parallax Activity Board, the PAB will also need some sort of power. Is it possible to drive both boards with the same power supply? I assume this might increase the required amperage of the ‘system’. This relates to my safety factor question above.
Although I have been playing with the Propeller for around 8 years now, a standard ‘wall wart’ has been good enough. I am assuming connecting the motor controller and motors will require some more muscle.
I am looking to learn what others have used for their setups? Any help and suggestions would be appreciated. Thank you.