Transformers

 

1) Four terminal device which turns ac input voltage into a higher or lower output voltage.

2) Transformers consist of two coils called primary and secondary sharing a common iron core.

3) Ratio of turns between primary and secondary coil determines step up/step down value.

4) Power (V*I) is the same in the primary and secondary coil.

5) Stepping down voltage increasing current. Stepping up voltage decreases current.

5) Uses - Isolation, Power Conversion, Impedence Matching.

 

 

 

 

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