Electrolytic capacitor

Discussion in 'The Projects Forum' started by Marie, May 26, 2008.

  1. Marie

    Thread Starter Member

    Nov 20, 2007
    24
    0
    Hi,

    I'm building a circuit which uses an inverter. The voltage output is connected to an inductor. My problem lies with current flow through the electrolytic capacitor. To ease understanding, I've attached a pdf file which is a study similar to the project I'm doing.

    The word doc focusses on my problem. My circuit is similar to Figure 1(a). As it can be seen in Figure 2, in the first circuit diagram when current is positive and gradient positive, i.e., switch S4 is conducting, current seems to flow from -ve side of electroltic capacitor to +ve side. If electrolytic capacitor is polarised, how is it possible? Can someone help; am I missing something?

    Thanks a lot
     
  2. mrmonteith

    Member

    Feb 18, 2008
    10
    0
    This I think will help:
    http://en.wikipedia.org/wiki/Capacitor

    Especially at AC Source and Impedence.

    Basically at center frequencies a capacitor can act like a short circuit. Anyway a quick reading through the above should help.

    Michael
     
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