Miniature wireless power transfer modules
Added 2022-03-26 03:27:34 +0000 UTCProbably the real purpose of the chip that was used in the wireless LED system.
https://www.youtube.com/watch?v=hZ8PqQWyUR8
Very compact and surprisingly simple system based on the XKT chips.
Comments
Yeah, I found those listings while looking for the data sheet. Not sure what the anti-foreign function is.
Big Clive
2022-04-01 01:35:31 +0000 UTCI found something € 4,99 6%OFF | 5pcs/lot XKT-R2 XKTR2 with anti-foreign function Lithium battery Power battery Car special 300V wireless charging IC https://a.aliexpress.com/_mPRuWqw
henrik ostrov
2022-03-30 22:59:03 +0000 UTCI didn't originally plan to do that, but just spontaneously did it.
Big Clive
2022-03-27 06:11:52 +0000 UTCFor the low current involved it may just have been the simplest option.
Big Clive
2022-03-27 06:11:20 +0000 UTCI reckon it would work for that, but I'd want to use a protected cell as a precaution against overcharging.
Big Clive
2022-03-27 06:10:44 +0000 UTC10 our of 10 for Arts and Crafts skills for cutting out those round circuit board photos with a high degree of proficiency. GOLD STAR, CLIVE!
Loscha
2022-03-27 00:16:41 +0000 UTCClive did a video on the XKT chips dated 29 Jan. Worth a look.
Mike Page
2022-03-26 19:11:54 +0000 UTCThanks, Clive. Looks like this stuff is finally going mainstream. I still don't think you'll be charging your car this way. The receiver's linear regulator seems wasteful, but there may be method in the madness. An air core transformer is never going to be simple.
Mike Page
2022-03-26 19:05:11 +0000 UTCElectric Toothbrush charging?
Mr B Shepherd
2022-03-26 10:12:10 +0000 UTCWould it charge an 18650? I have a cheap led torch that has inductive charging by sticking the end of the torch into a small base, it is about 20mm in diameter.
2022-03-26 09:05:18 +0000 UTCany chance of probing the transmitter signal wire to the fet with your scope - or even looking at the recieved waveform before and after the regulator?
Russell Peake
2022-03-26 06:07:35 +0000 UTCMagic chips, or as the British call them, magic crisps.
Russell Levine
2022-03-26 03:45:42 +0000 UTCThat was fun. Thanks Big Clive.
Dave Frederick
2022-03-26 03:44:04 +0000 UTC
