Arrigotti

FRED's for lower s/n ratio?
« on: July 18, 2004, 06:49:43 PM »
I read somewhere that FRED's may produce less switching noise.  Will that translate to a lower s/n ratio?


DrFrankencopter

FRED's for lower s/n ratio?
« Reply #1 on: July 18, 2004, 08:45:09 PM »
Well, I think what you want is a higher signal to noise ratio...

FRED's can result in less switching noise as they tend to have soft recovery. I suppose that this can have a slight effect on S/N ratio. I'd consider using FREDs in new DIY constructions.

Cheers,

Kris

Gus

FRED's for lower s/n ratio?
« Reply #2 on: July 18, 2004, 10:17:54 PM »
There is also the UF400x diodes.

mcs

FRED's for lower s/n ratio?
« Reply #3 on: July 18, 2004, 11:07:53 PM »
And if this is a low voltage project - schottky diodes are cheap and just as good...

Best regards,

Mikkel C. Simonsen

Arrigotti

FRED's for lower s/n ratio?
« Reply #4 on: July 19, 2004, 12:06:41 AM »
Actually, I was thinking of using them in my LA2A build.

FRED's for lower s/n ratio?
« Reply #5 on: July 19, 2004, 07:09:39 AM »
FRED's have a higher voltage drop than the standard silicon diode. From memory I think it is about twice the drop.


 

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