want help for boost voltage generation

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niks

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hi
i want detaile inforamtion to design DC-DC boost converter.
Actually i want how to select switching frequency for FET , Inductor value for required o/p voltage generation .
can anyone give me the mathematical equations or logc behind that,
thanks
niks
 

Hi niks,

National semiconductors (www.national.com) has several chips doing this task (LM257x for example). Look at their datasheet, you will also find usable information about calculation (even for other designs).

Bye
 

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