Timed street light circuit with light control

Published:2011/5/5 7:49:00 Author:Nicole | Keyword: timed street light, light control | From:SeekIC

It is an optical control timing street lamp circuit diagram, at night-fall the floodlight will automatically turn on, after a few hours later, it can automatically turn off. After dark, by the action of photoelectric switch, BG4 turns on, the oscillation circuit composed of IC1 starts to oscillate, ③ pulse constantly output. Because the charge time constant is larger, and the oscillation period T<



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