What is the difference between transformers and adapters?

In: Consumer Electronics

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A transformer is a component that changes AC current from one voltage to another. A transformer consists of two coils, one connected to the input, and one connected to the output. A transformer can convert voltage up or down, depending on the number of windings on the coil.

An adapter MAY include a transformer to change the voltage, but an adapter usually changes the voltage AND converts from AC to DC as well, and may have a regulator that locks the voltage to prevent a surge and other components that prevent what is called "ripple".

First answer by Redbeard. Last edit by Redbeard. Contributor trust: 1781 [recommend contributor]. Question popularity: 75 [recommend question]

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