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I am currently working on a high power class E amplifier which will sit inside a metal enclosure. It is powered by two power supplies - both are isolated but one of the power supplies is mounted in the same enclosure. The power supply itself is in a metal case and that case is connected to 'earth'. So, through one of the PSU chassis, the entire metal enclosure of my project is connected to earth.
I have read that people connect common ground to their chassis because this helps prevent emission of electromagnetic waves due to the operation of the circuit inside the enclosure. More importantly (in my case) doing this helps to prevent interference from outside sources and noise on any input signals.
My question is: Should I connect the isolated common ground to the project enclosure (and hence also connect the isolated common ground to earth)? I have drawn a quick diagram of my circumstances where the blue dashed line represents the new wire that I am thinking of connecting between Earth and isolated ground.
Thanks.
I have read that people connect common ground to their chassis because this helps prevent emission of electromagnetic waves due to the operation of the circuit inside the enclosure. More importantly (in my case) doing this helps to prevent interference from outside sources and noise on any input signals.
My question is: Should I connect the isolated common ground to the project enclosure (and hence also connect the isolated common ground to earth)? I have drawn a quick diagram of my circumstances where the blue dashed line represents the new wire that I am thinking of connecting between Earth and isolated ground.
Thanks.