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  1. #1
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    24VDC Single LED Flasher Circuit

    Please recommend me 24VDC Single LED Flasher circuit.
    IMRAN

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    Re: 24VDC Single LED Flasher Circuit

    1) you can use the internet to look this up
    2) the process works better when you show the work you did
    what is your circuit
    what do you expect it to do
    what does it actually do
    what kind of help would you like



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    Re: 24VDC Single LED Flasher Circuit

    I made attached circuit from electroschematic but I want to make it for 24vdc a d I want 50% duty cycle blinking.

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    IMRAN



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    Re: 24VDC Single LED Flasher Circuit

    how important is 50%?
    what frequency?

    is 40% ok? 45%?


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    Re: 24VDC Single LED Flasher Circuit

    Actually I need indication of Pressure Sensor in CO2 Fire Fighting Control Panel.
    When signal comes from pressure sensor the 24VDC LED should blink with 50% duty cycle.
    Or
    Please let me know that in emergency fire fighting system what should be the LED blinking speed.
    IMRAN



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  6. #6
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    Re: 24VDC Single LED Flasher Circuit

    For warning lights the actual duty cycle does not require to be precise, as long as the repetition rate is adequate.

    My estimate from what I've seen and heard, is that warning systems have a repetition date between 1 and 2 Hz. It should convey a sense of urgency to the persons listening to it.

    I am sure this topic has been studied significantly, and there may even be an EC or UL regulation concerning it.
    My batteries are recharged by "Helpful Post" ratings.
    If you feel that I've helped you, please indicate it as a Helpful Post


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