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1.达林顿型光敏晶体管运算放大器控制电路图1电路采用达林顿型光敏晶体管VTP和μA741运算放大器,在很微弱的光线下,可以使继电器K动作。本电路为亮触发。
1. Darlington type phototransistor operational amplifier control circuit Figure 1 circuit Darlington phototransistor VTP and μA741 operational amplifier, in a very weak light, you can make the relay K action. This circuit is bright trigger.