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Inside some dodgy Chinese USB power supplies from Greece.

bigclivedotcom · Youtube · 1 HN comments
HN Theater has aggregated all Hacker News stories and comments that mention bigclivedotcom's video "Inside some dodgy Chinese USB power supplies from Greece.".
Youtube Summary
I'd like to thank Filippos for sending these VERY shady USB chargers which he bought from a Chinese outlet in Greece. The flat one has one of the scariest transformers yet with no extra insulation between the secondary and sense windings. It also had a rather odd output capability of around just 20mA before the voltage plummeted.

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TL;DR: spend the $19 to buy a real, big brand USB charger because they have more to lose than grey market no brand.

Tragic. Probably cheap USB without mains isolation or maybe enough water dripped down length of cable and socket to create a circuit, because USB is supposed to be 5V DC.

Watch these USB charger teardown horror-shows to further understand why it's rational to pay for proper, authentic CE+UL, high-low isolation and quality components (ie insulated tape in transformers):

https://youtu.be/3Hdn0MuCK_0

https://youtu.be/uRe9w5PKmsE

https://youtu.be/bNoGCdX1IdQ

https://youtu.be/bmtW_oA1fRo

https://youtu.be/PKl6UJ57-2U

https://youtu.be/Ureg6RQVYS0

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