Photoresistor LDR light control switch circuit diagram

  
As shown in the circuit, there is the incident at the time, this circuit is connected with photoresistor LDR transistor is turned high or zero level. Amplification factor of tr
Photoresistor LDR light control switch circuit diagram - schematic

ansistor B 100 is sufficient, the photosensitive resistor between 100 ~ 100k Europe, corresponding to the case when the light irradiation and dark. If you want to control high power loads should be used Darlington transistors.




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