View Single Post
Old 12-21-2008, 12:57 AM   #23 (permalink)
MPaulHolmes's Avatar
Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
Posts: 3,831

Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
Thanks: 1,367
Thanked 1,115 Times in 730 Posts
Baby motor controller (5v 0.01amp) completed!

There were more than a few mistakes in both the circuit AND the program! It took HOURS to fix them all. ANGER! My beautiful oscilloscope came today. No plug that fit, but I had a spare computer plug that fit. With it, I could enter the world that I had been blind to until now.

So, I hooked up a throttle, and could control my pwm signal. Next, I need to send the pwm signal to a driver to amplify it, and then use the driver to turn on a few mosfets. Next step, 72v 40amp bike controller! Hold me back! Hold me back!

The picture of the oscilloscope with the green lines shows the pwm. It was about 80% of full throttle.

I think I'll install this version in my car and see what sort of acceleration I get. I'm guessing about the same as the forkenswift.
Attached Thumbnails
Click image for larger version

Name:	DSCF2365.JPG
Views:	1250
Size:	101.8 KB
ID:	2428   Click image for larger version

Name:	DSCF2366.JPG
Views:	1375
Size:	57.8 KB
ID:	2429   Click image for larger version

Name:	DSCF2368.JPG
Views:	1188
Size:	125.8 KB
ID:	2430   Click image for larger version

Name:	DSCF2369.JPG
Views:	1120
Size:	81.3 KB
ID:	2431  
kits and boards
  Reply With Quote