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Old 04-04-2014, 02:15 PM   #6395 (permalink)
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Originally Posted by MPaulHolmes View Post
I've gotten a lot of practice over the last year with the dsPIC. I also needed quite a few more pins than the atmega168. Also, the atmega is 8 bit, and 16 bit is a lot faster with 16 & 32 bit operations, so I can do a lot more with it. Also, I'm monitoring 3 currents, to see how well the current sharing is between the igbts. The dspic allows 4 channels to be sampled simultaneously. The atmega never would have allowed me to know really what all currents were in a given instant.

Also, I've already got code done for a couple buck chargers that used the dspic. Heck, one of them even had a "throttle", for changing the constant current charge rate. The code is very similar to what I need. It will probably take me a few days to modify it to the motor controller.

I finished the gcode for the base plate, and finished drilling one of them. Also, I mounted 3 igbts, and they fit perfectly. Almost no slop at all.

Hi Paul , long time missing from here, were can I find the specs and price of ctl and power bds.1000 amps type.My net is so slow these days that it takes ages to go through the posts.Also are they assembled/populated.
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