View Single Post
Old 04-07-2013, 08:31 AM   #6070 (permalink)
MPaulHolmes's Avatar
Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
Posts: 3,832

Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
Thanks: 1,368
Thanked 1,119 Times in 734 Posts
I finished soldering the 3 driver boards Yesterday I think. Well, I need one more PS2501 optocoupler for telling the micro about a desaturation event. I ordered 6, and Mouser sent me 5! oh that makes me so mad.

Anyway, with using 3 phases on a DC controller, I can use a single smaller film cap for the input capacitor, since the cap will see much smaller ripple. For example, if I switch at 16KHz per phase, it's basically 48KHz of switching, but only one is switching at a time, so the IGBTs won't mind. It's funny that the exact same hardware can be a 3 phase AC controller, a solar inverter, and a DC controller (with extra clean near-DC output, just how the motor likes it). I think I'll call it, "The D-ASCII. 0x0D 0x0A"
D for direct.
- for a dash
A for Alternating.
S for solar
C for Controller
I for inverter
I for inverter, and so it spells ASCII
0x0D for carriage return
0x0A for line feed...
kits and boards
  Reply With Quote
The Following 2 Users Say Thank You to MPaulHolmes For This Useful Post:
blacksun1989 (04-21-2013), thingstodo (07-06-2013)