Yes, I want to design a three-phase all-digital fuzzy motor drives, nominal 48 v dc bus voltage, continuous current 12 a, 40 a peak current, I encountered difficulties when choosing capacitance now, I can't use aluminum electrolytic capacitor, because the volume is too big, can only choose MLCC capacitor, but don't know how to determine how specific capacitance values, This is the root of the problem.