Sridhar, I ran some simulations to help you understand the problem http://www.siemc.com/SI_List.htm When you get to the page scroll down to Topic #3. It will show the frequency spectrum and current demands of some sample configurations..TFox At 11:09 PM 7/5/2007, M Sridhar wrote: >I have a doubt about Decoupling capacitor, I understand that decoupling >capacitor is used to decouple power supply to the device, so it acts as a >temperery power feeder in case of power shortage. >My doubt is how to know at what frequency the power fluctuation would happen? > >From were we may get this information. > >Thanks, >Sridhar. >------------------------------------------------------------------ >To unsubscribe from si-list: >si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field > >or to administer your membership from a web page, go to: >//www.freelists.org/webpage/si-list > >For help: >si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field > > >List technical documents are available at: > http://www.si-list.net > >List archives are viewable at: > //www.freelists.org/archives/si-list >or at our remote archives: > http://groups.yahoo.com/group/si-list/messages >Old (prior to June 6, 2001) list archives are viewable at: > http://www.qsl.net/wb6tpu > ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.net List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu