Hi,
This project is part of a larger power electronics project - power conditioning being done per phase. Which is working fine and produces notable HF noise ... which has been suppressed using RFI toroids, and LC Filters (to some extent)
Now I am designing a single monitoring board to monitor each phase which will use SPI to transmit data btw uC on power conditioning board and a single uC on the monitoring board. Each phase has a distinct SMPS supply which produces +12V and +5V via 7805 being run off the said 12V.
I do not want to make another supply and
I wish to keep the noise being generated in one phase to NOT travel to the other ....
I also want the monitoring board functioning even if 2 phases fail.
The only conclusion I came to was use optos for data iso and use blocking diodes for i/p power to board.
Given these 3 constraints I was wondering what other possible options do i have?
Thanks
This project is part of a larger power electronics project - power conditioning being done per phase. Which is working fine and produces notable HF noise ... which has been suppressed using RFI toroids, and LC Filters (to some extent)
Now I am designing a single monitoring board to monitor each phase which will use SPI to transmit data btw uC on power conditioning board and a single uC on the monitoring board. Each phase has a distinct SMPS supply which produces +12V and +5V via 7805 being run off the said 12V.
I do not want to make another supply and
I wish to keep the noise being generated in one phase to NOT travel to the other ....
I also want the monitoring board functioning even if 2 phases fail.
The only conclusion I came to was use optos for data iso and use blocking diodes for i/p power to board.
Given these 3 constraints I was wondering what other possible options do i have?
Thanks