Light beam excitation type automobile lamp intelligent power-off protection system
A technology for automobile lights and beam excitation, which is applied in optical signals, vehicle components, energy-saving control technology, etc., to achieve the effects of extending service life, reducing pulse impact, and having a simple overall structure
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[0017] Such as figure 1 As shown, the present invention includes an integrated chip AL, a control circuit, a timer connected to the OUT1 pin of the integrated chip AL, a photosensitive resistor RL connected to the control circuit, and an overvoltage protection circuit connected to the integrated chip AL , the relay K connected with the overvoltage protection circuit, the diode group connected in series between the control circuit and the car light switch J, and the beam excited logic amplifier circuit connected in series between the integrated chip AL and the control circuit.
[0018] Wherein, the relay K has an input terminal and an output terminal. When connected, the input terminal of the relay K is connected to the overvoltage protection circuit, and its output terminal is connected to the engine switch of the automobile. In order to ensure the automatic power-off function, the normally closed contact K1 of the relay K must be connected in series with the power supply circ...
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