The solar auto tracking control circuit

Published:2011/7/20 20:40:00 Author:Borg | Keyword: solar, auto tracking, control circuit | From:SeekIC

See as the figure, the dual op-amp LM358 composes 2 voltage comparator with R1 and R2, the Vref is 1/2 of VDD(+12V). The LDR of RT1 and RT2 with RP1, RT3 and RT4 with RP2 compose the light dependent sensing circuit respectively, one special thing of the circuit is that it can automatically self-compensate according to the light. See as the figure, RT1 and RT3 are installed at one side of longitudinal sunshading board, while RT4 and RT2 at the other side.



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