On Sat, 16 Aug 2003, Jinx wrote:
> Tim, roughly what current do you need at 24V ? And how
> tight does the 24V need to be ? If it's fairly small current
> you can use a 555 or similar to drive a diode-capacitor
> voltage doubler which will produce a little under 24V from
>
I need 24v@300mA, and 12v@2A. I've just been off and measured it all
up again and this is the worst-case power consumption, so I'd better plan
for it.

I'm using a 16f628 for this one, and I had thought of using the PWM
function to drive a diode-cap voltage doubler, but I'm not sure how much
juice I can squeeze out of it.

I could use a second 15v supply, then hook it up in series to an
lm7824(?), and then branch out the 15v rails to a beefy 12v reg.

Damn, why didn't I think of that before posting? :) And people say talking
to yourself is a bad thing :)

Thanks Everyone,

Tim

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