Automatic Light Dim Dip Controller | Electrical Projects
Automatic Light Dim Dip Controller
Abstract
This project is focused on keeps the correct head light
lighting power in accordance with the opposite vehicle light or any light
source intensity.
This type of system called Automatic Dim and Dipper is used
to control the intensity of the Head light automatically using the Dim Dip
Controller. By knowing the opposite vehicle light intensity value, the
brightness of the light is varied. This system is accurate, reliable and it is
easy to operate also.
Methodology
• LDR.
• Comparator.
• Relay
• Lighting system.
The system consists power supply unit, lighting system, LDR
(light dependent resistor), comparator, and a relay. The LDR is a light detecting
resistor, which output voltage varies depends on the environmental light, it is
connected with comparator for compare the reference voltage and input voltage,
when the sun light is dark, the LDR sends low voltage to the comparator, so the
reference voltage and LDR output voltage are not matched with each other, then
the comparator triggers a high pulse from its output pin, this is given to the
relay driver circuit for control light brightness.
If the environmental light
is in normal power the LDR output voltage will be equal to the reference
voltage then the comparator triggers a low pulse to the relay driver circuit,
so the head light will glow normally. Also there is one switch is there to
control the power to headlight, that is operated manually. If that switch is in
the ON position then with respect to LDR input the brightness will be control.
