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Where does the energy come from?
In power transformers, when dealing with efficiency or COP, there is an implied assumption that the output energy must come directly from the input energy. That is not quite correct, the output energy comes from the flipping of the atomic magnetic dipoles within the ferromagnetic core. If these dipoles were magnets that we rotated, that movement would require input mechanical energy due to forces on the magnet in the magnetic field from current in the secondary, classical generator action. The fact that the way a transformer works eliminates that secondary field while at the same time forcing the primary to demand the current to do that elimination, does not detract from the output source being those dipole flips. Once we train our minds to think of ferromagnetic material as an array of magnets that can be manipulated into giving out a series of energy pulses, we can ask is there any way that manipulation can occur without the primary input supplying that energy? One answer could be to devise a scheme where the primary supplies the pulse in normal transformer action up to where the magnets have flipped but then arrange that the reverse flips back to their normal state returns that quantity of energy to the primary. There doesn’t seem to be a law of Nature that says this can’t be done, and this is precisely what happens in this delay line scheme.
Smudge
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Topic: Transformer connected to a shorted delay line (Read 974 times)
