i ran into a problem today. while taking a ride today, my setup was working flawlessly. then all of the sudden it went berzerk and stopped working correctly. i was hoping someone could chime in and shed some light on my problem.
my setup is:
-exceed brushless monsterpower 46 (50-55 670kv)
-mystery 80A brushless controller
-22.2 v 6ah lipo
this setup is a friction drive with a 0.650 inch roller.
so the problem is that with no load, the motor will run up to full speed without a problem. but when i actually try to use it, it seems to not wanna put out the full power, and i think its cogging(not sure what to look for when it cogs). then when i try to run it up, it will try to go the opposite direction very roughly. i tried to look at the controller, it doesnt look like there is anything wrong. but while its on and running, some chips on the board get excessively hot. here is a picture of it:
sorry, i know, crappy pic but i know what chips are giving me trouble.
the chip in the red box is a TA7805F Bipolar Linear Integrated Circuit. http://www.datasheetcatalog.org/datasheet/toshiba/4143.pdf
the chip in the green box is a IR2101S(below that says 0522, does this mean anything in particular?) HIGH AND LOW SIDE DRIVER http://www.irf.com/product-info/datasheets/data/ir2101.pdf
the chips off to the left and right of this one are similar. im guessing its the drivers for the 3-phases.
these two chips seem to heat up signifigantly. im not sure what is going on with it. i tried to check the motor for shorts or burnt windings but i dont see anything wrong with the motor at all.
any help with this is appreciated.