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PWM output filter

PostPosted: Tue Oct 13, 2009 8:40 pm
by Gilly
Hi everyone

Being looking at the positioning of the Cores ( CH777060's )....
In Steves WEB site and others the cores are mounted very close to the metal box...

Does this have any effect on the Characteristics of the filter etc: :?


Thanks


Wayne

VK3ALK

Re: PWM output filter

PostPosted: Tue Oct 13, 2009 9:56 pm
by kf1z
Hi Wayne,

No, it shouldn't have 'any' effect.

I mount mine within 3/16" to the metal chassis, only seperated by a piece of Lexan.

The cores are pretty much "self-shielding".

Bruce

Re: PWM output filter

PostPosted: Wed Oct 14, 2009 12:28 am
by Gilly
Hi Bruce


OK thats good....

In my 160M PWM Modulator there is not too much room .... and I want to try a different larger cores then the ones I'm using...

Thanks


Wayne