SMPS Output filter inductor calculation.

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Hi All,

I am a brand new newbie when it comes to smps.

I am making a smps for a car audio amplifier , I have read a lot on smps design but can't find anything related to the designing of the output filter inductors. Can anyone perhaps help me with a formula/calculation?

Thank you,

corrieb
 
L=Ton*(Vin-Vout)/0.3Iout

The bigger the inductor, much better, for it can fixed more ripple current. But be careful w/ your inductor, as you increase your inductor value, the current capacity and saturation current of your inductor also decreases.
 
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