Three light control road construction warning light circuit

It uses CD4584B six Schmitt trigger IC (Di ~ Ds). Wherein Di and Ri, RG composition photometric circuit, D2 and RP, C2 composed of adjustable frequency (adjustment potentiometer RP) ultra-low frequency oscillation device, D3 ~ D6 in parallel as output controller. Opto-coupler B control Triac V work. Regulator RP, can change the blinking frequency.

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