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Tiny, cheap, and dangerous: Inside a fake iPhone charger

155 点作者 martinml将近 12 年前

9 条评论

makomk将近 12 年前
The larger Chinese-made chargers <i>generally</i> don&#x27;t have these issues (though a few apparently do).<p>Notice that this fake contains all or nearly all the components required to build a safe and working charger, including full safety isolation, fuse protection, and output regulation. The manufacturer&#x27;s entirely capable of building one, they&#x27;ve just fatally compromised on safety in order to fit everything inside a tiny fake Apple shell.<p>(The blog post says it doesn&#x27;t have a fuse, but generally instead of having a seperate fuse the input resistor on these power supplies is a special fusible resistor which is manufactured to also work as a fuse. Saves a few cents and some space at the cost of using a specialist component. Unfortunately it&#x27;s impossible to tell it apart from a normal resistor just by looking.)
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phasetransition将近 12 年前
I have an friend&#x27;s fairly expensive espresso machine in pieces in my living room due to electrical &quot;problems.&quot; The (indeterminate far east supplier) blatantly omitted about half the input side circuitry, including the supply filtering. Numerous components identified on the PCB were never installed.<p>One lonely resistor protected the IC V_in for far longer than I would have imagined possible (years) before exploding.<p>As someone who is actively working to increase my electrical circuit-related design chops, intuiting how this thing continued to operate has been an interesting exercise.
js2将近 12 年前
Previous: <a href="https://news.ycombinator.com/item?id=3996171" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=3996171</a>
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jp_sc将近 12 年前
This is how a real charger looks for comparison: <a href="http://www.righto.com/2012/05/apple-iphone-charger-teardown-quality.html" rel="nofollow">http:&#x2F;&#x2F;www.righto.com&#x2F;2012&#x2F;05&#x2F;apple-iphone-charger-teardown-...</a>
runjake将近 12 年前
This article is old (March 2012) and has been submitted at least twice prior. Here&#x27;s the small discussion from the last time this was submitted to HN, over a year ago.<p><a href="https://news.ycombinator.com/item?id=3699293" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=3699293</a><p><a href="https://news.ycombinator.com/item?id=3699293" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=3699293</a>
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gamegoblin将近 12 年前
I bought what looked like a legit iPhone charger in Turkey a few weeks ago. However, if you touched the tip of the cord while it was plugged in, it would shock the hell out of you. I guess they skimped on a ground wire? I am not an electrical engineer. Would appreciate an explanation if anyone can speculate.<p>EDIT: I don&#x27;t use this charger anymore, just to be clear.
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FootballMuse将近 12 年前
Anyone have any thoughts on this slim 45w charger? <a href="http://www.amazon.com/GPK-Systems%C2%AE-Portable-Notebook-Smartphones/dp/B00AQLCMRM" rel="nofollow">http:&#x2F;&#x2F;www.amazon.com&#x2F;GPK-Systems%C2%AE-Portable-Notebook-Sm...</a><p>They seem to have good reviews across their range of products and have certification logos. However, I&#x27;ve been hesitant.
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bohdan_anderson将近 12 年前
One of my favorite electronics tear down, he looks at two fake apple chargers. <a href="http://www.youtube.com/watch?v=wi-b9k-0KfE" rel="nofollow">http:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=wi-b9k-0KfE</a>
JimmaDaRustla将近 12 年前
I guess we shouldn&#x27;t think twice when buying proprietary device, even if overpriced...
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