On 9/11/06, Lee McLaren <piclist@lrm.com.au> wrote:
> I remember once seeing a circuit for a triac or SCR preregulator for a
> DC power supply but can no longer find the circuit. It was in the form
> of the bridge rectifier and used and error feedback from the output of
> the final regulator so that the final regulator had a pre-set voltage
> drop to keep power dissipation down.
>
> Anyone seen such a thing?
>

The diagram for an HP power supply?

http://cp.literature.agilent.com/litweb/pdf/5959-5310.pdf

Regards,
Mark
markrages@gmail
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