SOLUTION

A power inverter, or inverter, is an electronic device or circuitry that changes direct current (DC) to alternating current (AC).

There are many places where we use inverters in everyday life. For example, you know that the power in a car is supplied by its battery, usually a 12 V battery. However, some high-power sound systems fitted to vehicles seem to use a lot more power than the battery can provide. So we can use an inverter circuit to change the 12 V DC supply to a 48V AC supply or even higher AC values to drive these high-powered sound systems.