Author Topic: EEVblog #388 - Fake Apple USB Charger Teardown  (Read 8156 times)

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Offline LEECH666

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Re: EEVblog #388 - Fake Apple USB Charger Teardown
« Reply #60 on: November 30, 2012, 10:52:26 AM »
Still uploading, but here is the link anyway.

Crappy charger follow up [720p MKV]


I really need to build up a dummy load soon. :S

Offline timelessbeing

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Re: EEVblog #388 - Fake Apple USB Charger Teardown
« Reply #61 on: December 01, 2012, 07:53:47 PM »
Dirty Little Secrets - China

Offline LEECH666

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Re: EEVblog #388 - Fake Apple USB Charger Teardown
« Reply #62 on: December 08, 2012, 06:28:11 PM »
I cam across another one of these chargers. This model even has a tiny little full wave rectifier on board, but is pretty crappy as well.

Anyway, I know there is another video of Dave encountering a "ChongX" brand capacitor.
Does anyone know which video this is? I can't seem to find it anymore.

Cheers,
Florian

Offline tom66

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Re: EEVblog #388 - Fake Apple USB Charger Teardown
« Reply #63 on: December 10, 2012, 08:52:13 AM »
ChongX caps are pretty poor, have seen them fail in some cheapo LCD TVs...

Offline LEECH666

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Re: EEVblog #388 - Fake Apple USB Charger Teardown
« Reply #64 on: December 10, 2012, 11:48:57 AM »
I sometimes rewatch Daves videos just for certain comedic moments. The first "Chong" cap encounter was one of those moments for me that made laugh. That's why I asked for the video.

I remember the part in the video like this: Dave opens a device and comes across the Chong cap and says "Chong, yeah im not gonna trust that one as far as I can throw it." But I might remember it incorrectly.

It's not the charger video, so if anyone knows which video that was in, please tell me.

Cheers,
Florian

Offline bitwelder

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Re: EEVblog #388 - Fake Apple USB Charger Teardown
« Reply #65 on: January 17, 2013, 04:38:07 AM »
Here is a link to a very detailed tear down that I found on the web.
This is genuine Apple power supply that is dissected.


http://www.arcfn.com/2012/05/apple-iphone-charger-teardown-quality.html

On the same website/blog I happened to find today a nice comparison of 12 different USB chargers:
http://www.arcfn.com/2012/10/a-dozen-usb-chargers-in-lab-apple-is.html

Offline pussyfoot

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Re: EEVblog #388 - Fake Apple USB Charger Teardown
« Reply #66 on: March 26, 2013, 04:41:44 AM »
After watching this video, I now know what a bad USB charger looks like. What I want to learn is what makes a GOOD usb adapter. Is there a schematic with explanation of what makes a good one?  The same would apply to a DC-DC converter for a car. I'll build my own converters if need be, but I don't want to make the same mistakes.

Offline HKJ

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Re: EEVblog #388 - Fake Apple USB Charger Teardown
« Reply #67 on: March 26, 2013, 06:29:15 AM »
Quote
After watching this video, I now know what a bad USB charger looks like. What I want to learn is what makes a GOOD usb adapter. Is there a schematic with explanation of what makes a good one?  The same would apply to a DC-DC converter for a car. I'll build my own converters if need be, but I don't want to make the same mistakes.


Some of the important things is a good distance between mains and low voltage side, if the PS uses a chip, instead of only a transistor, it will also be considerable better.
I did measure and disassemble on a load of them, you can see the result here: http://www.lygte-info.dk/info/usbPowerSupplyTest%20UK.html.

Offline HP-ILnerd

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Re: EEVblog #388 - Fake Apple USB Charger Teardown
« Reply #68 on: March 31, 2014, 01:05:48 PM »
Here's a recent injury from my neck of the woods due to a knockoff charger obtained on ebay:
http://www.myfoxtwincities.com/story/25113149/knock-off-iphone-charger-leaves-man-with-electrical-burn-infection


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