Re: Tingles from power supply

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#1258

From: FatBytestard
Date: Thu, 12 Mar 2009 09:01

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On Thu, 12 Mar 2009 17:23:13 +1100, Sylvia Else
<sylvia@not.at.this.address> wrote:

>Robert Baer wrote:
>> Eeyore wrote:
>> 
>>>
>>> Robert Baer wrote:
>>>
>>>
>>>>   Sounds line that wall wart is a transformer rather than a switcher
>>>> supply.
>>>
>>>
>>> You come to this conclusion how ? Measuring the weight for a given DC 
>>> output
>>> would easily sort that out.
>>>
>>> Graham
>>>
>>   Transformers capacitively couple this "tingle" from input (primary) AC 
>> voltage to the secondary.
>
>How much capacitance would there be between the primary and secondary of 
>  a lower power mains transformer?
>
>Sylvia.

  Inter-winding capacitance varies from one transformer to another based
on the transformer construction and the winding placement, and the number
of tape layers (or paper) between the two windings.

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From: FatBytestard <FatBytestard@somewheronyourharddrive.org>
Newsgroups: sci.electronics.design,aus.electronics
Subject: Re: Tingles from power supply
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