View Single Post
Old 10-09-2011, 01:03 PM   #5125 (permalink)
MPaulHolmes
PaulH
 
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 1,202 Times in 765 Posts
Hey Louman! That was just a test board, and I don't have any more. It also had some minor design flaws, but I'm starting to think that the real problem may have been the lack of shielding on the current sensor. The LEM is designed to tolerate a noisy environment, but Freyguy found an interesting application note that shows you need a little mu-metal shield around the base of the bus bar, covering the sensor or you can get significant errors.
__________________
kits and boards
  Reply With Quote