> -----Original Message-----
> From: Ian McLean [SMTP:ianmclean@OPTUSHOME.COM.AU]
> Sent: Wednesday, February 05, 2003 3:06 PM
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      Re: [PIC]: Driving multiple PWM outputs from 1 PIC
>
> The problem I see with an LC filter is picking a good inductor value.
> Because I am drawing large amounts of current, the inductor cannot be too
> small.  But it cannot be too large either or I will getting ringing on my
> power supply side.  Any suggestions for a good combo for cap and choke to
> do
> the job ?
>
>
What sort of current are you talking about?  You can get some high current
surface mount inductors that are still quite physicaly small.  Obviously the
higher the PWM frequency the better, as smaller value components can be
used.

Regards

Mike

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