> I'd like to design for my own use a 5A laboratory power supply, and
> control it digitally, via a DAC (not a digital potentiometer, since

> ...it, and the more I'd rather prefer (intuitively/instinctively at 
> least)
> a boosted opamp solution instead.

For a lab supply I like the idea of a power supply that sucks as well 
as blows so boosted op-amp sounds good.

Consider using a DC coupled amplifier designed for audio amplifier 
solutions. Lowish cost for the power.

More anon perhaps.


        RM

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