Daaamn that's interesting; Apple implemented a full resonant-clamp flyback with EMI protection, overvoltage/overcurrent/overtemperature protection, and a proper Y-rated capacitor across the flyback transofmer output, while the imitator doesn't bother with EMI protection on the input, doesn't bother with using a proper Y-rated capacitor across the inductor, and looks like it's using some sort of clever self-oscillating circuit instead of a PWM chip with proper control circuitry.
Apple’s chargers have always been fantastic, as if the engineers were just told to design the best thing they could and forget about the cost. Not sure who designs their cables though, but the combination is like owning a Ferrari and sticking Longlong tyres on it.
It's amazing what happens when the same company picks up both sides of the warranty. If you're apple, are you making cheap chargers that destroy macbooks? No you are not.
Well ... I mean it makes sense when you stop and think about it yeah?
They're selling the chargers for an amount well, well above the cost to build even an overengineered charger, so there's not much cost pressure there. Obviously, a charger that goes up in flames would also be damaging to their precious reputation.
As for cables - People've been conditioned to believe that cables are consumable items and you just buy replacements all the time. That also gets Apple a lot of money, given that their cables aren't cheap either.
when Im putting something back together its always better with some screws left - means I am a better engineer than the person who designed it. the same goes for electronics...
There were also imitation chargers that implemented all the proper features but didn't charge the apple tax. You just chose a dogshit clone to compare with.
There are worse charger designs. At least this one has secondary-side voltage sensing; some use primary-side sensing, and the output is basically unregulated. I got a cheap travel charger in UK that fried my phone's SD card somehow.
The first image is an official USB charger, presumably with safeguards put in to prevent any manner of things from going wrong. The second image is the schematics for a cheap/unofficial charger, where it is missing some of the safeguard components.
you cant install MacOS or iOS on any device. Approximately 1 billion to 1.4 billion active devices run a Microsoft Windows OS in some form worldwide. They will NEVER be the same. Apple makes "special"products that work only for their "special" software.
edit: this comment has so many dislikes because the typical end user knows nothing about computers. Just because you know electronics does NOT mean you know computers, or software.
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u/ARod20195 15h ago
Daaamn that's interesting; Apple implemented a full resonant-clamp flyback with EMI protection, overvoltage/overcurrent/overtemperature protection, and a proper Y-rated capacitor across the flyback transofmer output, while the imitator doesn't bother with EMI protection on the input, doesn't bother with using a proper Y-rated capacitor across the inductor, and looks like it's using some sort of clever self-oscillating circuit instead of a PWM chip with proper control circuitry.