[R-390] OT: Filter for 9VDC PS

Barry n4buq at knology.net
Mon Jun 9 22:12:54 EDT 2008


>>I'm thinking of making a 9VDC, 1A supply
>>Will 35mH be worth the effort or will I be just as well off without it?
>
> Too small to do any good by a factor of around 100.  There's a reason 
> chokes have never been used much in low-voltage power supplies.
>
> Don

That's about what I was figuring.  Is there anything better I can do (short 
of spending bigtime for a really big choke) besides a big ol' capacitor?

Barry - N4BUQ 



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