On 3 Jun 2002 at 14:07, Michael A. Powers wrote:

> Hi All,
>
> I am currently using a PIC to control a frequency modulated buck converter power supply.  I'm not quite sure what values I should use for the output inductor and capacitor.  I've found some formulas for PWM controlled devices, but nothing for FM.  Does anyone have advice / formulas they could
share?

Start simple:

What frequency range?
(How DOES varying the frequency vary the voltage?)
What ripple voltage is acceptable?
@ what current?
What capacitor is planned?
Where is the filter resonant?

>
> Thanks,
> -Mike
>
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>


  *
  |  __O    Thomas C. Sefranek  tcs@cmcorp.com
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