Hi Guys , I am working on a kids small car project where I am using below spec DC motors.

Input voltage(V) 12
Retarder Reduction Ratio1:90
No Load Speed(RPM)180
No Load Current (mA)less than equal1100
Rated torque(kg.cm) 27.0 Kg.cm
Rated Speed(RPM)120
Rated Current(A)less than equal6.0
Max. Torque 90Kg.cm
Unload Current(A)20

Can you guys suggest what speed controller will work with the above motor or how do I choose which one will work best.

Here are few of them that I was looking into but I am not sure what to look for based on the DC motor spec.

https://www.aliexpress.com/item/328...hweb0_0,searchweb201602_10,searchweb201603_53

https://www.aliexpress.com/item/326...hweb0_0,searchweb201602_10,searchweb201603_53

Thanks
AG

 

Welcome to AAC!

Based on Rated Current(A)less than equal6.0 it looks like you want to safely cover ~8A (6A + 20% margin) so that eliminates the 5A model and leaves the 10A model

Sam