I really hate when my login times out when I'm writing a post.
So I guess this is going to be the short version.
1: Congratulations to Paul.
2: Alternative power electronics mounting setup: The Power Wheel
Symmetrical Layout Enhances Power Controller
No etching! Just drilling and bolting.
3: Single freewheeling diode module (1200V, 450A, $40):
MEO450-12DA IXYS 1200V 450A Fast Recovery Epitaxial Diode Module at The Electrostore.com - Electronic Surplus Parts & Equipment
4: Paul referred to a couple of lower cost MOSFETs and diodes. Can you please post part # and distributors please?
5. Do caps have to be colocated with the MOSFETs? The Power Wheel only has B- and M-. Could the caps be on a separate board or located at the battery pack? Or does the power wheel need 3 disks (M-, B+, B-)
Thanks for any answers and thanks for the inspiration to DIY.
ga2500ev