Transformer voltage ratio and current ratio.
In theory, the transformer voltage ratio is equal to the turns ratio, the current ratio is equal to the number of turns inversely proportional. There is actually a slight difference.
High voltage side voltage / low voltage = low voltage current / high side current = variable ratio
On the transformer voltage ratio and current ratio formula
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E1 is the original coil in the electromotive force, want to U1 is the back electromotive force. E2 is the electromotive force in the secondary coil, relative to U2 is the power supply. △ Φ1 is the magnetic flux through the original coil, is through the secondary coil in the magnetic flux. R1, r2 are the primary secondary coil resistance.
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If not the magnetic loss △ Φ1 = △ Φ2
There is
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According to Ohm's Law
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If the wire resistance is not counted, there are
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If the eddy current loss of the core is not counted, the input power of the transformer is equal to the output power
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