|26th June 2011, 02:19 AM||#1|
Join Date: Sep 2004
Power supplies and Overkill for 2X COD & Mux
I am planning my power supply section for running 2x COD boards, a 4:1 Mux Board, I2C Switch Board and some form of USB to I2C board.
How much of a difference does it make using multiple power supplies and separating the VA & VD from each COD board? VS connecting all VA & VD together and running from a single supply?
And should the MUX have its own power supply?
I am considering a setup with one large transformer, rectifier and bank of filter caps that then feed 5 separate regulators each with there own local bypassing and filter cap for each of the VA,VD,VA,VD, Mux stages. There would be a separate reg(s) for whatever USB board I end up with.
and there will be a completely separate power supply for the analog section.
It's not about what you can BUY...It's about what you can BUILD!
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