Hi,

do you need DC,which ripple?

You could also use a pic/dac to control the current via a pwm, like all
those powersupplies used in switched mode converters.
Because most of the chips today use current controlled pwms you need maybe
a second control-loop, which could be a little bit difficult for
loop-control if you need very fast current-changes, otherwise it is more
simple.

I`m sure at Linear techs website you could find some usefull hints for this.

If it`s just for a hack you could use some power-Mosfets and a big
heatsink, a current-sens-resistor and an opamp for controlling this loop.

>A little knowledge makes a guy dangerous (me).
>The load to be controlled will use varying 0-10 +vdc and 0-20 Amps.
>The 0-10 +vdc is no problem using a pic/dac combo, but I'm a little
>confused on what I should be using/doing to handle that kind of
>current?
>Any suggestions we be great.
>

Michael Wieser
m.k.w@nextra.at

Service and Audiodesign