calculpower
Hi Nikeplato!
I am also going with A3930 for BLDC controller development.
And I have some issues with it.
As you have already gone with A3930, pls let me have some guideline to it.
My development system has following components and specs:
BLDC motor : 24 volt, 6 Amp, 4000 RPM, line-line inductance 1 miliHenry
Controller: A3930, Mosfets are IRFR2405
sense resistor = 0.055 ohm
RC oscillator frequency = 35 Khz with Rosc= 39 k
My issue is My Mosfets and motor both get heat upto considerable extent which we can't easily touch consistently eventhough current is not more than 3.5 ampere with 0.055 ohm sense resistor.
Hope to have favorable reply.
Thanks & Regards!