capacitors and there effect on output frequency

Discussion in 'General Electronics Chat' started by Jsean21, Jan 12, 2009.

  1. Jsean21

    Thread Starter Member

    Jan 8, 2009
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    hi ive just conducted a mini test on bread board where i had to measure the frequecy of a a musical toy. n the question posed is
    why would chaningin a capacitor from 1micro farad, to 10nano farads effect the output frequency,
    im totally confused can someone help, thank you
     
  2. mik3

    Senior Member

    Feb 4, 2008
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    63
    Can you post a schematic of the circuit?
     
  3. Jsean21

    Thread Starter Member

    Jan 8, 2009
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    i already know that capacitors store energy then discharge it, is it that the higher the capacitor size the greater the higher the frequency?
     
    • 555.jpg
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  4. mik3

    Senior Member

    Feb 4, 2008
    4,846
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    This capacitor charges and discharges continuously (that is how the circuit works). If you want have a look here:

    http://www.uoguelph.ca/~antoon/gadgets/555/555.html

    The bigger the value of the capacitor the more time it needs to charge/discharge. Because the output frequency depends on this charge/discharge time, when you put a lower value capacitor it charges/discharges more quickly ans thus the output frequency increases.
     
  5. Jsean21

    Thread Starter Member

    Jan 8, 2009
    20
    0
    THANKS THATS BRILLIANT!!!! I
     
  6. Jsean21

    Thread Starter Member

    Jan 8, 2009
    20
    0
    understand it alot more clearly now
     
  7. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    This is good for you if had understand. The more you read the more you will learn and understand.:)
     
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