headlamp delay shutoff device

Published:2011/7/14 20:44:00 Author:chopper | Keyword: headlamp, delay shutoff | From:SeekIC

　This example describes the headlamp delay shutoff device, and the headlamps can continue lighting a period of time before they close automatically when drivers press the delay button,thus it can offer a short time emergency lighting when the drivers park and leave in the night. 　　The principle of circuit The headlamp delay shutoff device circuit includes the delay button S3,resistors R1,R2,capacitor C1,C2,diode VD1,VD2, relay K and time-base integrated circuit IC,which is shown in figure 7-32 . 　　EL is the motor headlamp,S1 is the total power switch for the automotive,and S2 is the headlamp switch.



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