Hi Mauricio,

I just finished a nice dual channel linear 2-16V adjustable positive and
negative bench supply with 4 amp capability and current limit. It has a PIC
(but, of course ;-) acting as a dual channel voltmeter and reading out to
an LCD. It is working very well.

If this is the type of thing you want information on, please let me know.
However, it is not digitally controlled, only digitally monitored. There
are actual pots controlling the feedback to produce the desired voltage
output.

I haven't seen any designs for digitally controlled supplies. Are you
taking about using an A/D converter and D/A converter to comprise the
feedback loop,or simply using a digital pot to adjust the analog feedback?
If you mean the former, I wonder how good the transient response would be?

I hope to put the schematic and photos of it on my web page soon, but I am
currently very busy with several simultaneous projects.

Sean


At 12:22 AM 6/30/99 -0300, you wrote:
>        Does anyones have a good idea on how to make a digital controled
power supply (a good one), I've already see the example on National's LM317
datasheet, but I'm looking for something better.
>        Thanks all for your answers.
>
>        Mauricio Jancic
>        VARIMAK S.A.
>
|
| Sean Breheny
| Amateur Radio Callsign: KA3YXM
| Electrical Engineering Student
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