use as high current 70A

I need help to design and build a PWM control unit.

Which module/h-bridge I could control these motors ?

Motor 300W/24V (from wheelchair)
I(hold) 8A
I(max) 70A (to 120A)

Maybe someone here has a bright idea with the high current ?

LG Dumpf

Maybe someone here has a bright idea with the high current ?

Buy one designed by someone who knows what they are doing.

PaulS:
Buy one designed by someone who knows what they are doing.

Where can I buy this H - Briges ?

You might try one of the below h-bridges. The chips may have thermal overload protection, which might help save your motor if it starts to get overloaded.

zoomkat:
You might try one of the below h-bridges. The chips may have thermal overload protection, which might help save your motor if it starts to get overloaded.

43a BTS7960B for sale | eBay

Thanks zoomkat, that was helpful !

LG