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The motor headlight shutting reminder

2016-09-01 04:31  
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The motor headlight shutting reminder
The working principle of the circuitThe motor headlight shutting reminder consists of the light control switch circuit and audio alarm circuit, see as figure 7-119. The light control switch circuit consists of the light sensitive resistor RG, resistor R3, capacitor C2 and transistor V.The audio alarm circuit consists of the time-based integrated circuit IC, resistors of R1 and R2, capacitor C1 and buzzer HA.GB is the battery of the motor, S1 is the car lock switch, S2 is the headlight switch, EL is the headlight.