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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

#31
post #20

Earlier quoted context omitted.

I recently discovered AvE and now bigclive. I'm not sure how I missed this particular internet rabbit hole but I love it.

If you want another rabbit hole to start down, I can also recommend Techmoan. He doesn't do teardowns, but instead likes to buy old HiFi gear and reviews them. Some of them are incredibly obscure such as the Tefifon: https://www.youtube.com/watch?v=nBNTAmLRmUg

This is great, thank you!

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

#32
post #20

Here, Clive looks at an Ikea USB power supply: https://www.youtube.com/watch?v=uRe9w5PKmsE&nohtml5=False Much better made.

I recently discovered AvE and now bigclive. I'm not sure how I missed this particular internet rabbit hole but I love it.

If you like AvE, check out This Old Tony. He is more machining focused, but he did do a clever multimeter 4/1 video.

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

#33

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…

The one thing that I can't find from Anker or any other reputable, reasonably-priced supplier (last time I checked, anyway) is a single-port charger that is small enough, horizontally and vertically, to not sprawl out onto adjacent outlets in a power strip. I don't understand why this is so hard. My first smartphone, a Samsung Galaxy Nexus, came with one, but it failed within a year and Samsung wanted like $50 for a…

Anker power pins are oriented to only block one socket in a typical up/down arrangement in the older version of the product. So, my 4 port charger from them? Only uses 1 socket, and doesn't block the one above or below it.

Also, their 5 and up port new and old ones don't hang off the plug, they have a short normal power cable.

https://www.anker.com/products/71AN3654WS-WA

This is the one I have. Their new version of the product doesn't seem to be oriented that way anymore. So, yeah. Not quite what you were looking for, but they do exist.

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

#34

Earlier quoted context omitted.

I play Ingress a lot (a GPS based mobile game where you run around a lot in the real world so most players use external batteries) and at least 60-70% of the whole community uses Anker products. I personally know at a dozen people who use Anker wall plugs and all of them (including me, 1 wallplug and 2 battery packs) are very happy.

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

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

#35
post #19

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

Including sexual lubricants https://www.youtube.com/watch?v=5i7_-NtJeB4 Someone has to review them...

The vibrating cock ring is the next related video, and is much more interesting. There's a tiny motor, possibly the kind used in mobile phones, which he takes apart.

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

#36
post #30

Earlier quoted context omitted.

The one thing that I can't find from Anker or any other reputable, reasonably-priced supplier (last time I checked, anyway) is a single-port charger that is small enough, horizontally and vertically, to not sprawl out onto adjacent outlets in a power strip. I don't understand why this is so hard. My first smartphone, a Samsung Galaxy Nexus, came with one, but it failed within a year and Samsung wanted like $50 for a…

Like an Apple one?

The Apple ones do not speak standard USB charging resistor ladders, thus max out at 500mA when charging non-Apple devices.

On the flip side, Anker chargers speak both, and charge newer iPhones and iPads faster than that huge iPad charger does.

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

#37

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…

The one thing that I can't find from Anker or any other reputable, reasonably-priced supplier (last time I checked, anyway) is a single-port charger that is small enough, horizontally and vertically, to not sprawl out onto adjacent outlets in a power strip. I don't understand why this is so hard. My first smartphone, a Samsung Galaxy Nexus, came with one, but it failed within a year and Samsung wanted like $50 for a…

Unfortunately Anker / Amazon don't want my Australian dollars. I've got a similar Tronsmart charger I got from Geekbuying (similar enough that I want to send one to Clive for testing). It's even more difficult to get decent USB battery packs here as only DHL will ship them

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

#38
post #20

Earlier quoted context omitted.

I recently discovered AvE and now bigclive. I'm not sure how I missed this particular internet rabbit hole but I love it.

If you like AvE, check out This Old Tony. He is more machining focused, but he did do a clever multimeter 4/1 video.

If you are into machining then check out Clickspring, oxtoolco, Abom79, Keith Rucker, Keith Fenner, Shadow HKW, ...

If this is not enough then go and visit this list:

https://www.reddit.com/r/ArtisanVideos/comments/3v264a/meta_...

(But be careful, this is the ultimate rabbit hole)

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

#39
This happened to me with a cheap reflow heat gun. [1]

Got a nasty bite as soon as I touched it.

Got what I paid for I guess. Made me rethink super-cheap AC equipment from the internet, that's for sure.

[1]: www.amazon.com/Kohree-Digital-Rework-Station-Solder/dp/B00ITMPQS2

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

#40
post #15

That's scary. Not enough isolation between the line side and the output side. Classic cause of electrocution and fires. The standard for this is UL 1310, Class 2 Power Supplies. Not sure if this design complies. There's a lot to be said for split-bobbin transformers, where there's a solid plastic barrier between the two windings. This just has wire insulation and some tape.

The really scary thing is that as he points out, it actually seems to be designed with an apparently reasonable amount of isolation between the primary and secondary - it's just that something managed to completely abrade the insulation. Not sure if it was UL compliant as designed because their requirements for transformer construction are quite complicated, but it certainly seems plausible.

He's reviewed numerous really questionable power supplies[1] with a gnat's whisker of separation between the mains and low voltage sides and much more dubious transformers, but somehow none of those actually managed to put 240 volts on the output...

[1] Such as the cheap shitty pink USB charger from China: https://www.youtube.com/watch?v=ioAq7PI1Uwg

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