Login | Register | Advertise | About Us | Contact Us  
 
   
    H O M E   >>  C I R C U I T   L A B















FLASHING BEACON
 

Related Circuits

  • Cupboard light
  • White LED Light Probe for Inspection
  • Twi-light using white LEDs
  • Multiutility Flash Light
  • Emergency Photo Lamp

  • Subscribe to Electronicsforu.com
       

    FLASHING BEACON 

    ASHOK K. DOCTOR


    A flashing beacon has many uses. It can be employed as a distress signal on highways or as a direction pointer for parking lots, hospitals, hotels, etc. Here we present a flashing beacon that uses well-known regulator IC LM317T. As LM317T regulator can deliver more than 1 amp. A small 12V, 10W bulb with a high-quality reflector can serve as a good visible blinker.



    A 12-15V, 1A DC supply is connected to the input pin of the IC. A 12V, 10W bulb and a combination of resistors and capacitors are connected between the output pin and ADJ pin of the IC as shown in the figure. The IC is provided with an aluminium heat-sink to dissipate the heat generated while delivering full current. Since the IC has an inbuilt switch-on current limiter, it extends the bulb life.

    For the shown values of resistors and capacitors, the bulb flashes at approximately 4 cycles per second. The number of flashes depends on the charge-discharge time of the capacitors. Different values of resistors and capacitors can be used to increase or decrease the number of flashes.




     

    Related Circuits


    Post Comment | 0 Comments




    Electronics Buzz
    BHEL coming up with an ultra mega solar power project at Sambhar in Rajasthan
    Electronics manufacturer Aimtron moves to Palatine
    Neotech to release 3D printed electronics platform, LBS 45XE
    Defence ELECTRONICS: Major business opportunities come knocking
    BUDGET 2014: Imported electronics will be costilier
     
     
      Magazines
    Electronics for You
    LINUX for You
    Facts for You
    Electronics Bazaar
    Portals
    electronicsforu.com
    efytimes.com
    bpotimes.com
    linuxforu.com
    Directories
    Electronics Annual Guide
    Events
    EFY EXPO
    EFY Awards
    EduTech Expo
    OSIWEEK Expo
    News Verticals
    Electronics
    Infotech
    Linux & Open Source
    Consumer Electronics
    Science & Technology
    BPO
    Educational Institute
    EFY Techcenter
    Kitsnspares.com
     
    © Copyright 2012 EFY Enterprises Pvt. Ltd. All rights reserved.
    Reproduction in whole or in part in any form or medium without written permission is prohibited. Usage of the content from the web site is subjectT etor ms and Conditions