16-08-2012, 04:04 PM
Headlight Warning Buzzer
Headlight Warning Buzzer.ppt (Size: 178.5 KB / Downloads: 30)
INTRODUCTION
Often, we find that a lot of motorist.They have forgotten to turn on light in a car when Parking.Then back to start the machine,It did not work,because a battery did not have a energy. But this circuit will be warning a car driver for instantly know, when we forget to open the car door or forgetting to the off light car.
WORKING
Often, we find that a lot of motorist.They have forgotten to turn on light in a car when parking.then back to start the machine, it did not work, because a battery did not have a energy. but this circuit will be warning a car driver for instantly know, when we forget to open the car door or forgetting to turn off lights in car.
From this circuit picture, the transistor Q1and Q2 are working to astable multivibrator circuit.The collectorpin of the Q2 used a loudspeaker was a load’s circuit.The capacitors C1, C2 and a resistors R3, R4 was timing part’s circuit, and frequency Of output signal.
ADVANTAGES
Output time is low.
In this circuit astable multivibrator is used which works for only one stable state.
Small in size.
Easy to build.
Circuit is less complex.
APPLICATIONS
Used in audio amplifier driver stage.
Used in television receiver circuit.
It is also used as low power general purpose circuit.
Used in various applications.
CONCLUSION
Hence we can conclude with this project that we can make complex free circuit with the help of warning headlight buzzer comparing with, the other circuit and gives fast output also.
Now a day it is useful in most applications like buzzer system etc...