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USB power supply puts 220 Mains power out on USB jack

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Re: USB power supply puts 220 Mains power out on USB jack

#121

Post by [deleted] »

Symbiote wrote: post #102
marshray wrote: post #96

Earlier quoted context omitted.

Nobody said anything about America or China. The listed uploader on the video even suggests it's from India. So quit yer trolling. The transformers made 80 years ago were indeed dangerous. Generally they used paper insulation soaked in fire retardant chemicals. There are a couple of observations I make about this video: 1. She's working amazingly fast and clearly with great skill. However, there's very very little ti…

(She speaks Mandarin, briefly, so this is very likely China.) It's amazing though! Working that fast. It's also just what the client ordered, if they wanted better quality they'd have to pay for it.

[deleted]

Re: USB power supply puts 220 Mains power out on USB jack

#122

Post by gil »

ents wrote: post #45
mmanfrin wrote: post #12

Earlier quoted context omitted.

Anker and recently Aukey. And iOrange for cables. The problem is that smaller brands hit the Amazon lottery and get a lot of early 5-star reviews, then swap out their product with one made of cheaper components. I think for Anker, their brand has become a bit bigger than is gamble-able on a bait and switch, so I'm continuing to use their products.

Anker is ex-Google employees.

Just like Ingress used to be Google!

Re: USB power supply puts 220 Mains power out on USB jack

#123

Post by Tepix »

DiabloD3 wrote: post #14

As a reminder, if you're buying a USB charger or battery, or MicroUSB, Type C, or Lightning cable please buy Anker products. They are not expensive, but they are the best products you can get your hands on. I own multiple Anker products, and have never discovered anything better than these. The only non-Anker charger I currently use is the Google Nexus branded Qi charger (plugged into an Anker multiport brick), and t…

I've looked at Anker products in the past but it looked as if they didn't have any certification (TÜV, UL, CCC, GS). I'd rather trust a non-profit safety consulting company than one particular brand. That said, UL LLC is no longer a non-profit since 2012.

Re: USB power supply puts 220 Mains power out on USB jack

#125

Post by makomk »

duskwuff wrote: post #72
jhallenworld wrote: post #63

Heh, ground fault interrupters should probably be required on every circuit.

That only works if the device is grounded, and the fault is to ground. Neither is the case here. :(

The most likely danger with this fault is that someone would touch both the live device and ground, causing a path to ground. This would cause any RCD to trip. It's obvious that whoever owned this didn't have one installed because even the cable shorting to a grounded radiator didn't cause a trip.

Re: USB power supply puts 220 Mains power out on USB jack

#126

Post by vidarh »

stordoff wrote: post #84
yoodenvranx wrote: post #5

Earlier quoted context omitted.

Big Clive is _the_ channel for teardowns of everyday electronic stuff. I am actually not that interested in this kind of stuff but somehow I still watch most of his videos. If you are into more... entertaining teardowns you should have a look at AvE. Even if you don't like it you will still learn some useful canadian terms ;) (edit: just to make it clear, AvE is actually very knowledgable. His "boltr" teardown series…

> My third goto channel for electronic stuff is EEVBlog who also does amazing stuff. If you are going to watch one teardown today then please watch his rather famous video about the worlds worst tablet computer: https://www.youtube.com/watch?v=2o8MDCIlOEk Oh boy, that thing is a MESS. When he first opened it, I thought it looks like the sort of thing I'd knock together - not pretty, probably mildly unstable, but gets…

Yikes... That tablet makes the cheapest, crappiest Chinese Android tablet I've bought look like an amazing feat of engineer in comparison (though that's probably mostly because almost all of them are slight tweaks on Allwinner or MTK reference designs - most of them, regardless of manufacturer look almost identical).

Re: USB power supply puts 220 Mains power out on USB jack

#127

Post by sho »

voltagex_ wrote: post #34
Someone1234 wrote: post #24

Earlier quoted context omitted.

Just want to add: With Anker make sure you're buying through an authorised channel. Fake Anker products DO exist.

Unfortunately there doesn't seem to be an authorised reseller in Australia

Yes there is. macfixit.com.au and mushtato.com.au both stock anker. Unfortunately, because of this Amazon has stopped shipping the brand to AU and the prices here are twice or more that overseas.

Re: USB power supply puts 220 Mains power out on USB jack

#129

Post by adrianN »

yoodenvranx wrote: post #5
aembleton wrote: post #4

Big Clive, who makes these videos does some brilliant tear-downs. I recommend watching his other videos.

Big Clive is _the_ channel for teardowns of everyday electronic stuff. I am actually not that interested in this kind of stuff but somehow I still watch most of his videos. If you are into more... entertaining teardowns you should have a look at AvE. Even if you don't like it you will still learn some useful canadian terms ;) (edit: just to make it clear, AvE is actually very knowledgable. His "boltr" teardown series…

I like that the company that produced this apparently still exists.

Re: USB power supply puts 220 Mains power out on USB jack

#130

Post by eterm »

basicplus2 wrote: post #111

A true isolation transformer has an earthed copper shield wound in between and physically separating the primary from secondary windings, anything less is unsafe. One of the many reasons I detest "double insulated" equipment, as it is impossible to determine if it has been designed for safety or not without ripping it apart and destroying it. This is a real issue in Australia as our regulators do no regulating and mo…

If you're worried you can order 2 at the same time and then rip one of them apart. It's an expensive solution but it should give peace of mind.
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