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May 13th 14, 09:53 AM
posted to uk.radio.amateur,rec.radio.amateur.homebrew
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The Transformer
"Jim Mueller" wrote in message
eb.com... On Mon, 12 May 2014 12:08:00 +0100, gareth wrote: If one could "ride the electron", what happens deep inside the transformer such that the inductance of the primary does not limit the current passing through that primary? (This lack of understanding always made me feel uneasy when winding my own potcores for the instrumentation amplifier I was charged with desiging in my first year after graduating) This, amongst other things, puzzled me for some time, but ultimately I reasoned it out. Would anybody like to partake in a _GENTLEMANLY_ discussion about such technical matters? Also, what of a visualisation of the Magnetic Vector Potential, "A"? The inductance of the primary does limit the primary current (except for losses) as long as the secondary is unloaded. When a load is placed on the transformer, the current through the secondary generates it's own magnetic field in opposition to the field from the primary. This effectively reduces the inductance and allows more current to flow. There are also other ways to look at it. Yup, you've got it! |
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