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Boost converter ripple current

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http://forum.allaboutcircuits.com – We have to design a boost converter with some "real world" components - i.e. that are available for sale. Whilst looking at the possible parts for a boost converter I came across references to making sure that the capacitor could handle the "ripple current". I looked a bit further and can see 2 possibilities. 1) The ripple in the capacitor current itself ie the difference between the minimum and maximum capacitor current. 2) The other possibility is that there is a ripple current called delta i,L which is mainly affected by the size of the inductor for given input voltage (Embedded)