Car Headlight Alarm

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will.i.am

Joined May 25, 2013
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Hello Guyz!

First of all I am new here and I found this section to be appropriated for submitting my question.

Well, I was Investigating on Car headlight Alarm and how it should sound a buzzer when the headlights are on?

I have attached the circuit diagram aswell you might wanna have a look on it.

I found this while i was searching for ideas. Now all I need is lots of suggestion from you guyz regarding to how it can be improved such as; a pnp transistor has been used can it be improved with a comparator or with any other components?

Are there any other components of this circuit which can be improved?

How can I make it smaller? I have heard about the surface mount techniques as well as Integrated circuits which can make a circuit smaller But I don't have a clue how they work in reality?.

So, I would really appreciate if you guyz could give me a helping hand please?
 

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Wendy

Joined Mar 24, 2008
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The owners of All About Circuits has elected not to host discussions of automotive electrical system modifications/enhancements due to safety concerns, the potential of legal ramifications and the possible circumvention of vehicle regulations at the state and federal level.

This thread is against the AAC forum rules, Chapter 6, as seen here:

6. Restricted topics. The following topics are regularly raised however are considered “off-topic” at all times and will results in Your thread being closed without question:

  • Any kind of over-unity devices and systems
  • Automotive modifications
  • Devices designed to electrocute or shock another person
  • LEDs to mains
  • Phone jammers
  • Rail guns and high-energy projectile devices
  • Transformer-less power supplies
This can be found in our Terms of Service (ToS)

Automotive modifications of any kind are strictly forbidden. Therefore, this thread will be closed.

Please try to understand the reasons behind this action, and feel free to browse and use the forums.

You might find answers to your questions in one of these forums:

http://forum.allaboutcircuits.com/showthread.php?t=54400

Another good forum that shares many of the same membership is http://www.electro-tech-online.com/ . Good luck.
 
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