Marcel Duchamp wrote:

> Sort of.  If you have a clock signal or PIC pin or whatever to drive the
>    TC44xx chip, you can get your top side supply as shown in the attached
> gif.  Drawn in haste, caveat hacktor.

Thanks... something like this is what I was thinking, just that I think
that if I go with a switched cap multiplier, I probably need to multiply by
3. The input can be anything between 8V and 15V or so, and if it's below
10V, double that minus losses won't get me high enough.

And then I switch this to the gate and add a couple zeners to protect the
gate from over/under voltage.

I just thought that this should be a common application for the ones who
use MOSFETs in bridges a lot, and that some IC would include all the
necessary circuitry -- but it seems the existing driver ICs don't match the
majority of existing low-Rdson MOSFETs.

Thanks,
Gerhard

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