How a Mobile Charger Actually Works (The 50,000Hz Secret)
Have you ever wondered how your tiny mobile charger turns 220V wall power into a safe 5V for your phone? In this episode of "What Exactly Is?", we tear down a standard smartphone charger to explain SMPS (Switched Mode Power Supply) technology. Learn why chargers convert DC back to AC at 50,000Hz, how the Opto-Coupler uses light for safety, and the clever physics that allows modern chargers to be so small.
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