> I tried this tack before. I ended up with $60 of simple switcher parts
> that never exactly worked right. The 12V was a buck boost converter
> pair.
>
> I'm not feeling it.

The only thing a simple switcher and a TL494 have in common is the epoxy
in the chip case. There was a time when half the PC PSUs were driven by
494s and the other half by 38xxs.

However you are free to do as you wish.

Peter

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