Hi there, my name is pedro, im a reseacher of the Federal University of Paraíba, i was developing a bldc controller board using FD6288, but in having some confusing troubles.
The thing is, the chip isnt working like i was thinking it be. The first phase is on its perfect working, the second phase is switching, but not similar switch like the first one, and the thirth phase, dont switch, only have some very fast pulses.
i have some pics of the osciloscope to explain better, i can post them if be needed.
When i say phases, im talking about the load out junction of high and low side mosfets ok
Another behavior i noticed, is that all the gates of Low side Mosfets are normal switching, but the High side, only one is working well, and the last two, no switching one and wrong switchs another
can someone help me