Mistery circuit HELP

Thread Starter

Klaidas Stumbras

Joined Jul 7, 2016
19
Hello guys can you help me with this one circuit that i found on the ground ;D i just cant leave a thing like this thrown away so there it is what it might be ?20160801_162443.jpg 20160801_162402.jpg 20160801_162431.jpg
 

Alec_t

Joined Sep 17, 2013
11,540
I'd guess the board of a solar-powered garden LED light. The black cylindrical thing looks like an inductor. The black blob is an IC.
 

Alec_t

Joined Sep 17, 2013
11,540
No. I think it's a boost converter for running a 3V white LED from a small 1.2v NiCd cell, as found in a cheapo garden light. The magic is done by the black blob.
 
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