PSU : prices and differences

[Jonathan]

Better to PM with all the details and how to build it correctly or keep quite.!

Why PM, why not post it all here for everyone to see? That way next time someone asks the question it's easy...it's practically the whole point of the forum to openly share the information, not hide behind PMs.

[JAZZCNC]

Why PM, why not post it all here for everyone to see? That way next time someone asks the question it's easy...it's practically the whole point of the forum to openly share the information, not hide behind PMs.

Your the MOD and resident electrical genius so Get on with it then.!! . . . . Just make sure you make it Very very clear so the electrically challenged new comers can fully understand how to accurately calculate what's needed and how to wire together.

I'm not doing it and will stick with the personal touch so I now the person I'm helping fully understands what they are doing.!

[Jonathan]

Your the MOD and resident electrical genius so Get on with it then.!!

I think the point we're making here is that you don't need to be an electrical genius to do this, you just need clear instructions. Therefore we need someone who can explain things clearly, but you have made it apparent that that's not me, so I'll just contribute with this circuit diagram:



Two versions depending on whether the transformer secondaries need to be placed in series or parallel to obtain the correct voltage. Two capacitors pictured, but more/less may be needed in some cases. I put in the NTC thermistor for soft start, which is optional for most size transformers in this application. I see no reason to put a fuse on the output since all the drivers I've dismantled (PM752, PM542, DQ860MA, AM882, 2M880N) include their own individual fuses, however it may be sensible to include one in case somebody decides to use the power supply in a different application.