AC and DC power differ in direction, usage, and efficiency. Learn the basics of how alternating and direct current work and where each is used.

DC current moves in one direction. It is typically used in situations where smaller amounts of power are required, like in small, battery-operated devices. "AC" means "alternating current".

That means each device needs to convert AC power to DC, as well as reducing the voltage to the much lower levels used in digital circuits.

Wondering if phone chargers use AC or DC power? Learn the difference, how chargers work, and why it matters for your device’s safety.

It overcomes the hard fact that EVs run on DC power while homes, buildings and utilities need AC. Without bidirectional EVs, it’s harder to convert a car’s DC energy into the AC used by other ...

Scientists in Sweden have compared AC and DC topologies in PV-powered buildings using battery storage. They have found that DC distribution systems can achieve energy savings when they are ...

ROHM leverages its LogiCoA technology to control a power-factor-correction stage and flyback DC-DC converter stage at the same time.

Not sure what separates AC from DC power? This beginner-friendly guide breaks down the differences in how they flow, work, and power your world.