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Original Message
RE: separate rectifiers for input and output stages?
Posted by SteveBrown on April 14, 2017 at 12:30:57:
I have done this before and really liked it for one main reason - tweaking. A separate power supply for both sections allows you to more easily adjust each without impacting the other. For example, you want to listen to the effect of 10 more ma on the output. In other designs that extra current draw is also going to impact the front end of the design, and vice versa. You can also more easily try completely different drives up front, etc. Downside is, of course, likely needing a custom wound transformer. With companies like Hybore, that is a lot more economically feasible now. If you use a bias supply, I'd add another winding for that one as well.