LM3886 PSU , need

[madam]

Thanks 4 info about good diodes.

But I'm still wondering about..........

Can I use a bit modificated Carlosfm PSU to support 2X PBA-150 board??

Can I feed both of the BPA-150 from the same PSU or beter use two PSU's (1 for the "normal" and one for the "inverted" signal) ?????

and one more....

I made Alexw88's desighn. with the Lundahl input transormers. The cener-tap is connected to each board... so ....., if I need to use 2 PSU's, and I connect both "signal ground" from the L1545A.... doesn't it couses some ground-loop??? (and don't forget I feed 2-2 boards from 1 psu at this moment)

 

[pacificblue]

Can I use a bit modificated Carlosfm PSU to support 2X PBA-150 board??

Yes, if you take the necessary steps for the higher power demands.

Can I feed both of the BPA-150 from the same PSU

Yes, you can.

if I need to use 2 PSU's, and I connect both "signal ground" from the L1545A.... doesn't it couses some ground-loop??? (and don't forget I feed 2-2 boards from 1 psu at this moment)

That is the trick. You have to design it so that ground-loops are avoided. There are great threads on grounding techniques in the forum.