Many thanks Amberwolf,
For taking the time to check out my work.
I am thinking It will be a very tough little controller when I am finished.
Here is a link that takes us through the discovery & trouble shooting of these small controller "cutting out" issuses:viewtopic.php?f=2&t=16910
I have yet to form an opinion on the reason this circut is so touchy on these models, It is a great saftey feature if that was the intent.
I know that these guys were haveing the same issues also:viewtopic.php?f=2&t=12616
I am certain the low resistance & high rpm of the smaller motors (non hub) mandate the higer efficancy MosFETS
to get to survival levels of performance. I am just learing enough to realize we need some real power handling units & soon. (I hope the real engineers are making progress on the open source 300 amp units soon
Oh, my towels are 100%cotton & the humidity in west Michigan rarly drops below 80% (be in the 90's soon enough)
not quite Costa Rico but never dry. I worry more about doing something really dumb like setting the board down on a screw driver or a lead triming.
My only real question's remaining are on programing settings.
Once I modify the shunt (solderd 1/2 shut) to lower the resitance, (thus matching the ratings of a 12 FET controller) I am wondering if the values will be askew enough to make havok on the LVC programed settings. Logic tels me that it should be fairly close. (howerver I failed LOGIC in High school
)It should be easy to test though. Once that is determined this should become a really nice controller for a comuter. (even better for the hub crowd)
If I understand correctly, the Main function of Low Voltage Cut off limits are to protect the MCU unit from an under voltage event. I don't think controller builders give a hoot about the batteies & their life.
(thats fetchers & GGoodrums BMS Job
Fire works happen if the MCU shuts down in mid signal & leaves a couple FET's turned on at the wrong time.
The R1 resistor will be sized based on pack voltage to keep the 12v regulater from over working (with these mods the controller could be pushed to 100v potentialy)