Capacitance rating in a circuit

Discussion in 'Homework Help' started by MIRINGU, Sep 8, 2008.

  1. MIRINGU

    Thread Starter Active Member

    Mar 18, 2007
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    0
    Hi,i have a problem in understanding how to determine the value of a capacitor to use in a cct.
    eg A cct is using Vcc=7vdc
    I=0.5A
    Then the purpose of the capacitor is to reduce noise hum in the output speaker.
    whats the difference in using may be 16v 330μF, or 50v 2200μF?
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    An accurate answer is not possible without the circuit to examine. A 16 volt rating is safe in a 7 volt circuit, but I do not know what the capacitor is doing.
     
  3. MIRINGU

    Thread Starter Active Member

    Mar 18, 2007
    75
    0
    Hi,
    i was thinking on general ccts.eg in the case of a rectifier or the capacitor is being used to reduce noise hum,whats the difference of using 16v 2200μF capacitor and 16v 330μF in the same cct?
     
  4. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Post up the circuit and let's see.
     
  5. MIRINGU

    Thread Starter Active Member

    Mar 18, 2007
    75
    0
    Ok i'll do so.Thnx
     
  6. MIRINGU

    Thread Starter Active Member

    Mar 18, 2007
    75
    0
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