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Ideas for simple pulse circuit?

Discussion in 'General Electronics Discussion' started by AFex54, May 23, 2015.

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  1. AFex54

    AFex54

    144
    2
    Apr 10, 2015
    Need some ideas for generating a repeating slow pulse from 0v- 9v lasting around 250ms with pulsewidth adjustment.
    A square LFO of sorts.
    any help/input would be appreciated as im fairly new
     
  2. hevans1944

    hevans1944 Hop - AC8NS

    4,535
    2,112
    Jun 21, 2012
    This sounds ideal for the ubiquitous 555 timer integrated circuit. Lots of circuits available on the Internet.
     
  3. Anon_LG

    Anon_LG

    453
    117
    Jun 24, 2014
    Specifically you will want to use the 555 timer as an astable multivibrator. The width and frequency of the wave can be adjusted by altering the control resistors and capacitors. Research the schematic online.
     
  4. AFex54

    AFex54

    144
    2
    Apr 10, 2015
    cheers guys :)
    pretty awesome a simple 8 pin IC can provide exactly what i need.
     
  5. hevans1944

    hevans1944 Hop - AC8NS

    4,535
    2,112
    Jun 21, 2012
    And dirt cheap, too! Zillions have been made and sold. Also available in low-power CMOS configuration for battery-operated equipment.
     
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