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From: John Devereux
Subject: Re: Switching regulator noise
Date: Tue, 07 Jan 2003 14:59:28 +0000
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NNTP-Posting-Date: 07 Jan 2003 15:09:34 GMT
"James Fitzsimons" wrote:
>I have a switching regulator ( a national semiconductor part from memory)
>that I am using to get a 5v output from a 12v gel cell to run the logic on
>my mobile robot. The problem is that the regulator seems to be generating
>quite a bit of RF noise. I have since read that this is a common problem
>with switching regulators.
>This is not effecting the opertation of the robots electronics, but is
>causing a lot of white noise on the TV in the next room.
>For the sake of maintaining domestic relations I need to find a way to
>"quiten" the regulator before the Missus kills me ;-)
(In addition to the other advice:)
If you have used a bobbin core style inductor, this is may
be the reason. Use a toroidal or magnetic pot core instead.
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