What differentiates good audio xmfrs from bad ones? - Page 2

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Re: What differentiates good audio xmfrs from bad ones?
whit3rd wrote:

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** While adding load current does not directly alter the magnetising current in the primary, it does reduce the effective AC supply voltage seen by the primary.  

This is due simply to the resistance of the primary winding - current flow produces a voltage drop which must be subtracted from the external supply voltage to accurately model what is going on.

Eg, say the primary current due to load is 1 amp and the winding has 5 ohms resistance - then the effective voltage is 5 volts LESS than the AC supply.  


....   Phil

....  Phil  






Re: What differentiates good audio xmfrs from bad ones?
  snipped-for-privacy@whidbey.com wrote:
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** Soft iron has not been used since the days of Michael Faraday.

   Thin laminations of silicon steel is the norm.  




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** You exaggerate.  



....  Phil

Re: What differentiates good audio xmfrs from bad ones?
The parasistic elements. (copper, iron...).


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