Hi anyone
This may be a basic question...but...
In the design for the TIDM-1PHMTR the power to the board is from supply live and supply neutral to an R-C voltage reducing and rectifying circuit ending at an TPS77001.
Supply neutral forms the -ve/ground plane for the board.
The connections for SDB24s (to V1+ & V1-, and I+/I-) on the MSP430 come from supply live with the part of the circuit terminating on -ve (which is neutral).
Internal to the SDB24 is the MSP430 -ve circuit.
So now my question:
If I were to create an EVM whose power supply to the board (and by extension to the MSP430) instead of the above solution, were to come from an external 12V DC supply (ie the power reduction R-C circuit of the TIDM-1PHMTR is removed entirely).
What effect will that have on the SDB24s (& the values they generate) as those circuits are still between supply live and supply neutral (and of course supply neutral is now not connected to the new -ve of the board)?
thanks in advance