An iPhone charger converts AC (alternating current) to DC (direct current). Here's how it works:
- AC is the type of power supplied by outlets in your home.
- DC is what your iPhone uses to charge its battery.
When you plug your iPhone charger into an outlet, the chargerβs power adapter first takes the AC from the outlet, then it converts it into the DC that the phone can use. This is why you see a power adapter (or brick) that connects between the wall and the charging cable. The adapter is responsible for this conversion.