Transformers

A transformer is an electrical device used to change the voltage level in an alternating current (AC) circuit. The transformer works on the principle of electromagnetic induction and can either
Step up or
Step down the voltage.
- In a
Step
-up transformer, the voltage is increased while the current is decreased.
- In a
Step
-down transformer, the voltage is decreased while the current is increased. In this case, the transformer is converting low AC voltage and large AC current into high AC voltage and small AC current. This is the typical operation for a
Step
-up transformer, where the primary coil has fewer turns and the secondary coil has more turns.