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A project log for OpenBLDC

BLDC shield for arduino and stand alone controller

nerdkingnerd.king 06/26/2014 at 12:360 Comments

So I powered the board with 12V and then toggled the HI and LO inputs on all of the drivers.  The LO output worked great and was putting out 12V as I thought.  But the HI output was doing some weird floating back to gnd behavior.  I went back again and looked at the interals of the IR2101 and the HI driver voltage shouldn't be measure in relation to GND it should be measured in relation to the bottom of the HI FET which is the top of the half H bridges.  I have not verified this yet but I am confident that the chips are working correctly now.

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