Quote:
Originally Posted by Pdelcast
Funny how minds work alike. Here is Castle's version:
We are using the new datalogging ESC (Phoenix-ICE 200) to store data from the battery discharge. 9 x 400 watt resistors, 18 x 33,000 uF capacitors and 6 x common mode chokes to keep the battery load as DC-like as possible. |
lol. Instead of 9x400w resistors, I'll be using 60x50w resistors - pretty close power-dissipation-wise. Care to donate one of those Phoenix ICE ESCs?
I picked up an Eagletree 150A logger from a member here so that is taken care of, but the ICE would work just as well.
Looks like I'm gonna have to get some caps as well. I assume by the size of yours and the value of yours that they aren't low-ESR? I suppose it's not needed with that amount of capacitance. Maybe a 0.5-1F car-audio cap would work (and probably cheaper). I imagine the hook-up spark is VERY substantial though - or are you using a no-spark resisitor?
My design didn't include chokes - maybe I should look into that as well. I could probably pick up a large toroid (or unwind a spare large transformer I have laying around) and wind one myself. What is the total inductance value of your setup?
What are you using for the throttle control signal; an actual radio, a seperate circuit (like I planned), or using some computer driven control signal? I would
LOVE to have a computer-driven control signal so that I can program test runs and have it be consistent for all battery tests. So, if your setup uses a computer-driven setup,
PLEASE let me know!
Thanks for your input Patrick. At least I know I'm on the right track; if it's good enough for CC, then it's good enough for me!
