Internally this charger looks like a tiny implementation of a QI inductive phone charger, which makes sense. The main chip is triggering strong Deja Vu from a previous exploration of a standard QI charger.
The investigation was thwarted by the mystery chip, which may be a microcontroller or may be an ASIC (Application Specific Integrated Circuit.) My guess is a microcontroller with dedicated inductive charging functionality.
That said, the circuitry is interesting, and a useful reference for future designs.
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The investigation was thwarted by the mystery chip, which may be a microcontroller or may be an ASIC (Application Specific Integrated Circuit.) My guess is a microcontroller with dedicated inductive charging functionality.
That said, the circuitry is interesting, and a useful reference for future designs.
I specifically avoid using intrusive mid-run video adverts for a more relaxing viewing experience.
If you enjoy these videos you can help support the channel with a dollar or two for coffee, cookies and random gadgets for disassembly at:-
https://www.patreon.com/bigclive
Patreon supporters get early access to advert-free videos as they are made, and also regular live streams.
The Patreon support keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
Other contribution options are available at:-
http://www.bigclive.com/coffee.htm
#ElectronicsCreators
I have one of these chargers, but my Apple watch Series 7 doesn't like it. For some reason it constantly thinks it's disconnect and then connects again, causing charging to be really slow.
Black background -> blackground. That's funny 😀
Skineffect is what your looking for
They say a watched watch never charges
Poundland is a very interesting store name 🤔
The ferrite material is somewhat similar to what is used in thin fridge magnets, as well as the magnets for fridge seals.
So, how difficult would it be to take the chip apart and reverse engineer what's going on? Asking for a friend. 😉
I think, the capasitors, connected to the coil, are for doubling the voltage in the coil to increase the current. The higher the current, the higher the transferred energie.
I wonder if it would charge a Seiko kinetic watch?
Maybe litz wire? Braided wire where individual strands of wire take turns being on the outside to defeat the skin effect.
I cannot hear the word “poundland” and not chuckle a little.
if you had a big enough one of these in your driveway, and parked an ev on top of it, wouldit charge the car?
.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I'm only here for the Smudge'in. . . . . .