Apple iPhone charger teardown: quality in a tiny expensive package

Are all power supply’s made equal, or do poor quality ones risk damaging your devices? An electrical engineer gets (tear)down and dirty, as objectively as one can. We’re surrounded by chargers for our laptops, phones, tablets and more – but like many, I never understood just how complex these little devices are.

“Apple’s power adapter is clearly a high-quality power supply designed to produce carefully filtered power. Apple has obviously gone to extra effort to reduce EMI interference, probably to keep the charger from interfering with the touchscreen.[16] When I opened the charger up, I expected to find a standard design, but I’ve compared the charger to the Samsung charger and several other high-quality industry designs,[17] and Apple goes beyond these designs in several ways.”

Ken Shirriff’s blog: Apple iPhone charger teardown: quality in a tiny expensive package

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