Mistery circuit HELP

Discussion in 'Technical Repair' started by Klaidas Stumbras, Aug 1, 2016.

  1. Klaidas Stumbras

    Thread Starter New Member

    Jul 7, 2016
    14
    1
    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
     
  2. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    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.
     
  3. Kermit2

    AAC Fanatic!

    Feb 5, 2010
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    It is a portion of a plastic battery holder and a switch, transistor and two resistors mounted on a PCB.
     
  4. Klaidas Stumbras

    Thread Starter New Member

    Jul 7, 2016
    14
    1
    so you think its solar charger?
     
  5. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    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.
     
  6. Klaidas Stumbras

    Thread Starter New Member

    Jul 7, 2016
    14
    1
    Yeah thats what i thought
     
  7. KL7AJ

    AAC Fanatic!

    Nov 4, 2008
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