MacBook charger teardown: The surprising complexity inside Apple’s power adapter

Have you ever peeked inside your Macbook’s charger? This teardown uncovers the surprising amount of technology packed inside, including a microprocessor. The compact power adapter utilizes a switching power supply to efficiently convert AC power to low-voltage DC for electronic devices. Apple revolutionized charger design with their compact, stylish, and advanced chargers. Despite the higher price of official Apple chargers, they are safer and more sophisticated than cheap imitations that often lack essential components. The Macbook charger is a marvel of engineering, using power factor correction and a resonant switching power supply to deliver 85 watts of power in a sleek package.

https://www.righto.com/2015/11/macbook-charger-teardown-surprising.html

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