Why You Shouldn’t Buy Pololu 36V20CS Motor ControllersFirat Dede
In this review, I will write some bad things about Burnt Pololu 36V20CS Robot controllers.
First of all, I will start with me. I am not beginner at motor controllers or at least implementing motor controllers to robot systems. When I bought I was very excited and curious about these motor controllers… But I get disappointed with performance and lack of guarantee.
- Small Terminals (12-14AWG Cables Don’t fit, How Can 20 Ampere can be Drawed by this small Terminals?!)
- Not Open Source (At least they can not burry IC’s top face, I think It is one model of Allegro mosfet driver Chip)
- Very small mosfet transistors (They won’t conduct heat because of small metal area)
- Too close Power lines (Motor output PCB lines close as 0,2mm so at high amperes we saw a lot of sparks!)
Very Very Small MOSFETs!
I added comparison photo of MOSFET transistor sizes. Small size causes small heat transfer area, small currents and small things..
How I burn’t Motor Controllers?
These motor controllers rated for 36V battery voltage. So I used with maxon RE35 motors at 25V. But when I applied voltage it started to work with small smokes (Because of power line sparks). It worked 4-5 times after first one motor driver stopped.
When I compared to another motor controllers Pololu drivers look like empty ballon. Sabertooth, RoboClaw motor controllers are better options… Or best of them is custom made motor controllers.
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