Wawa:
True.But the three shunts are connected to the other three holes.
And shunt common goes to a different hole on the side of the board.It seems that this board is designed for three loads, connected to those six "power/ground" vias.
And that 'power-in/ground' is on the side of the board.
I wonder how much current those thin shunt traces can take before evaporating.
Leo..
Ah, that could be. The original chip doesn't restrict you to a common supply for each shunt, so
I'd expect it just to be wired in line with the high side supply separately per channel.