At 05:15 PM 12/29/00 +1100, you wrote:
>Peter L. Peres wrote:
> >
> > >variable frequency PWM
> >
> > I think that I did not understand the solution properly, because the
> > smoothed (integrated) output of PWM depends only on the voltage of the
> > source and its duty cycle. Not on frequency. Did I miss anything ?
>
>The trick is to vary both the on period and the
>off period, to give fine adjustment with quick
>software loop. Frequency varies, but for my app
>f only had to be over 100kHz, so any f over that
>is fine. :o)
>-Roman

Isn't this technique called a "phase-locked-loop"?


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