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selection of switching frequency in Power supply design-SMPS

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sandhya.im

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Pls tell me what are the constrints that should be considered for the selection of switching frequency in Power supply design(smps)
 

Re: selection of switching frequency in Power supply design-

--If you are using high switching frequency, it means more EMI nosie.

--But if you are using high switching frequency, your inductor value is reduced. that is an size advantage

--higher the swiching frequncy, higher the swiching losses---which reduces the efficiency.
 

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