Cytron 20A Bi-Directional 6V-30V DC Motor Driver MD20A

Easy to use. Connected to a Teensy 4.1 and is driving a linear actuator. Only tested ro 3 Amps peak but no heat at that level. Best value i coyld find for a controllable DC motor driver over 10A.

This unit is well engineered. They made an effort to use the PCB as a heat spreader. It used advanced manufacturing, and rework should not en done lightly.The ratings are mostly conservative. The unit val take huge peak loads. The power connection goes through a relatively small connection path, possibly intended as a fuse. The capacitors help with switching current and reduces power supply glitches.The controller can get confused and need a reset. This suggests there are some nice safety features - TBD.We used a thermal pad to the case to dump heat.

This board has nice on/off button for testing and built with TI chip.PWM input from external source works well and drive the motor with 20Amp rating.Arduino using analogOut function command scale to 0(0%) to 255 (100%) works very good too.