Solar Cell charges a NiCd AA cell when darkness falls

Reverse engineered circuit diagram of a popular mass produced solar light. The light automatically turns on when there is no light falling upon the solar cell, so the parts count is minimal. The charging circiut is not particularly efficient since the battery must charge through a plain diode.

Read more original source:http://members.shaw.ca/novotill/SolarGardenLight/index.htm

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