Industrial Engineering
Electrical Engineering

How does a step-up and step-down transformer work?

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2011-05-23 08:27:54

A transformer is made from two or more coils of wire wound

around an iron core. When some voltage is applied to one of the

coils it magnetizes the iron core, which induces a voltage in the

other coil. There is a turns ratio where of the two sets of

windings determines the amount of voltage transformation.

a step up transformer makes a voltage higher than before it does

this by having more turns on the secondary coil then the primary

coil.

a step down transformer makes a voltage lower then it was before

it reaches it, it does this by having less turns on the secondary

coil then the primary coil.


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