Automatic Head Lamp Dimmer Circuit

 Automatic Head Lamp Dimmer For Any Vehicle 

Dimmer Circuit



Headlight is very common during night travel. The same headlight which assists the driver for better vision during night travel is also responsible for many accidents that are being caused. The driver has the control of the headlight which can be switched from high beam (bright) to low beam (dim). The headlight has to be adjusted according to the light requirement by the driver. During pitch black conditions where there are no other sources of light, high beam is used to. On all other cases, low beam is preferred. So when the bright light from the headlight of a vehicle coming from the opposite direction falls on a person, it glares him for a certain amount of time. This causes disorientation to that driver. This discomfort will result in involuntary closing of the driver’s eyes momentarily. This fraction of distraction is the prime cause of many road accidents. Reduces this problem by actually dimming down the bright headlight of our vehicle to low beam automatically when it senses a vehicle at close proximity approaching from the other direction. The entire working of the dimmer is a simple electronic circuitry arrangement which senses and switches the headlight according to the conditions required.





How To Install Automatic Dimmer







Required Components



1.     Head Lamp Adapter ( For H4 Light )




2.    LDR
3.    Resistor
4.    Transistor 
5.    Diode 
6.    Capacitor 


Dimmer Circuit



Components Value 

1.    Diode 1N4007 ( D1 - D5 )

2.    Resistors  

       R1, R5 - 10 Ohm

       R2 - 22K Ohm ( 22k to 56K Use any value )

       R3 -     10K Ohm Variable Resistor 

       R4 -     10K Ohm

       R6 -      1K Ohm

       R7-        LDR

3.    Capacitor 

       C1-    1000MFD 36 Volt

       C2-    220MFD 16 Volt ( Delay Capacitor )


4.    Transistors 

       T1 BC 548   , T2 2N2222 ( SL 100 , 13001 , 13003....Etc. )



5.  SPDT Relay  12 Volt







        



 





 


Post a Comment

0 Comments