Re: [SI-LIST] : Why 110 VAC on my circuit

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From: Doug McKean (dmckean@corp.auspex.com)
Date: Wed Nov 01 2000 - 08:55:15 PST


Maybe you should be seeing 110vac.

Two pole 110vac/120 degree out of phase possibly?

Doug

> yaserh wrote:
>
> Hi,
>
> I have problem with a circuit i have designed uses a linear power supply with a transformer 220-12 VAC 1A , when i measure on any point on the circuit with respect to the earth point i found 110 VAC on the scope. I need to know why i see this 110 VAC or this is due to the transformer interwinding capactance, if it's so how i can remove this signal from my circuit. I think that this is a common mode signal.

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