how to make a led torch

Discussion in 'The Projects Forum' started by Ujwal Bhagat, Feb 15, 2016.

  1. Ujwal Bhagat

    Thread Starter Member

    Jan 30, 2016
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    Hi I want to make a led torch which would run on 3v and the battery capacity I haven't decided. Please exclude circuits with toroid coil and ics (except ic555) . I want to run 6 leds and one 1watt led.
     
  2. Dodgydave

    Distinguished Member

    Jun 22, 2012
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    Well when you have worked out your led power, current and voltage, then you can select the battery for it, and that will show you how big it will need to be.
     
  3. Ujwal Bhagat

    Thread Starter Member

    Jan 30, 2016
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    Please recommend me some efficient circuits.
     
  4. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    As you only will use 3 Volts as power, you most likely will need a boost converter.
    Also you have said nothing about the specs of the leds to be used.

    Bertus
     
  5. Dodgydave

    Distinguished Member

    Jun 22, 2012
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  6. hp1729

    Well-Known Member

    Nov 23, 2015
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  7. hp1729

    Well-Known Member

    Nov 23, 2015
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    Sounds like three "C" cells are called for.
     
  8. Ujwal Bhagat

    Thread Starter Member

    Jan 30, 2016
    76
    0
    Want all to be fitted in the container.
    All leds runs on 3v. I would use two nicad cells (each rated at 1000mah).
     
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