Hi All,
I've been beating my head around this topic for a while now so why not through it at the community.
I have a flyback converter design which generates two isolated voltage rails, each completely isolated from each other.
Both of the grounds from both of these isolated rails eventually go outside the design for use in external referencing. Therefore, it appears to me that both of these should be tied to EARTH (your thoughts?) for safety, as the secondaries on an isolated transformer may float to who knows where (your thoughts?)
'If' I earth these two isolated grounds, they are in essence connected externally, so why would I not just create two voltage rails which 'share' the isolated ground and therefore helps to reduce further ground loops.
It starts to get pretty ground loopy and I'm concerned so hoping someone can just inform me of the industrial practice so I don't need to keep running in circles trying to think of the best way to go about this.
Thanks in advance,
James
I've been beating my head around this topic for a while now so why not through it at the community.
I have a flyback converter design which generates two isolated voltage rails, each completely isolated from each other.
Both of the grounds from both of these isolated rails eventually go outside the design for use in external referencing. Therefore, it appears to me that both of these should be tied to EARTH (your thoughts?) for safety, as the secondaries on an isolated transformer may float to who knows where (your thoughts?)
'If' I earth these two isolated grounds, they are in essence connected externally, so why would I not just create two voltage rails which 'share' the isolated ground and therefore helps to reduce further ground loops.
It starts to get pretty ground loopy and I'm concerned so hoping someone can just inform me of the industrial practice so I don't need to keep running in circles trying to think of the best way to go about this.
Thanks in advance,
James