EMI filters and ground
Part Scavenger, Tue Aug 15 2006, 01:48AMI've heard of people using EMI filters from Comps/TVs/Monitors as ground (well, so they can connect to the mains ground) in their DRSSTC's. How exactly do I do that? I don't want to fry anything you know.
Thanks
Re: EMI filters and ground
Marko, Tue Aug 15 2006, 01:57AM
I merely guess filter's capacitors are used to couple base ground to mains or so.
Anyway hooking high power coils to mains grond is a bad idea as inductance of long wires causes large disturbances and voltage gradients to appear along the line (even if building has a proper ''gren wire'' grounding).
Marko, Tue Aug 15 2006, 01:57AM
I merely guess filter's capacitors are used to couple base ground to mains or so.
Anyway hooking high power coils to mains grond is a bad idea as inductance of long wires causes large disturbances and voltage gradients to appear along the line (even if building has a proper ''gren wire'' grounding).
Re: EMI filters and ground
williamn, Tue Aug 15 2006, 02:00AM
I use a emi filter for my medium DRSSTC to filter the incoming 120vac for the logic supply transformer. But for my small DRSSTC I just grounded the secondary to mains ground and I havent had any problems. My medium DRSSTC does cause havoc within the house so I use a dedicated RF ground for it (6ft copper stake).
williamn, Tue Aug 15 2006, 02:00AM
I use a emi filter for my medium DRSSTC to filter the incoming 120vac for the logic supply transformer. But for my small DRSSTC I just grounded the secondary to mains ground and I havent had any problems. My medium DRSSTC does cause havoc within the house so I use a dedicated RF ground for it (6ft copper stake).
Re: EMI filters and ground
Part Scavenger, Tue Aug 15 2006, 02:03AM
Oops, I forgot to add I'm going to do a small coil, but would it work up to something like 300-500W?
Part Scavenger, Tue Aug 15 2006, 02:03AM
Oops, I forgot to add I'm going to do a small coil, but would it work up to something like 300-500W?
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