Hi, I read in an instrumentation book that it is recommended to use a separate ground for each of:
1. Power supplies (SMPS 24V Primary Secondary voltages and 3.3,5,9,12 and 15V)
2. CANBus
3. Data signals etc
Can anyone explain how this would be implemented? When I design circuits I connect all grounds to the same point to avoid current loops but only use the power supply ground, I haven't used an SMPS Transformer yet but I heard each individual secondary supply needs one. .
I tried looking further into this but can't find the answers. Can anyone explain or recommend a good web source or book please?
1. Power supplies (SMPS 24V Primary Secondary voltages and 3.3,5,9,12 and 15V)
2. CANBus
3. Data signals etc
Can anyone explain how this would be implemented? When I design circuits I connect all grounds to the same point to avoid current loops but only use the power supply ground, I haven't used an SMPS Transformer yet but I heard each individual secondary supply needs one. .
I tried looking further into this but can't find the answers. Can anyone explain or recommend a good web source or book please?