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Automatic headlight brightness switch (ADC0804)

2014-12-07 14:03  
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This article describes the Automatic headlight brightness switch (ADC0804). The content is very simple, very helpful. Components in this article can help you understand better understanding of this article. For example, in this article, you can go to find and buy these components:ADC0804.

Driving the highway with your high-beam headlights can
really increase your visibility, but can he a blinding hazard for
other drivers. This simple circuit can be wired into your
headlight switch to provide automatic switching betw1een high and
low beam headlights when there is oncoming traffic. It does this
by sensing the lights of that traffic. In this way, you
can drive safely with your high-beams on without blinding other
drivers.

Schematic

Parts:

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Notes:

Q1 should me mounted in such a way so it points toward the
front of the car with a clear line of site. Suitable places are
on the dashboard, in the front grill, etc.

Adjust all the pots for proper response by testing on a deserted road.

S1 enables and disables the circuit.

B1 is, obviously, in the car already.

Before you try to connect this circuit, get a wiring diagram
for your car. Some auto manufacturers do weird things with
wiring.

Connection A goes to the high beam circuit, B goes to the
headlight switch common and C connects to the low beam circuit.

 


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