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TI Home » TI E2E Community » Support Forums » Power Management » AC/DC and Isolated DC/DC Power » AC/DC and Isolated DC/DC Power Forum » please help to design an smps using ucc28610
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please help to design an smps using ucc28610

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vishnu gopalakrishnan
Posted by vishnu gopalakrishnan
on Feb 08 2012 00:10 AM
Prodigy220 points

hi

   i am new to design an smps.i would like to design an smps using ucc28610. can i use the design software provided with it. is it accurate?

also i need to calculate the number turns for the transformer from the primary inductance value and turns ratio obtained from the design software.can anyone provide the fromulae for that

ucc28610 help
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  • CWilson
    Posted by CWilson
    on Feb 08 2012 01:54 AM
    Expert1730 points

    Page 15. There's some of your equations.

    Try to surf the web for how to calculate a Flyback in DCM. Both TI and Fairchild offers very good seminars, app notes and reference designs regarding Flyback design.

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  • vishnu gopalakrishnan
    Posted by vishnu gopalakrishnan
    on Feb 08 2012 02:56 AM
    Prodigy220 points

    yes i found the equation in one of its application notes. name slua604

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  • Lisa Dinwoodie
    Posted by Lisa Dinwoodie
    on Feb 08 2012 13:36 PM
    Genius11820 points

    If you do a search in this forum for "UCC28610" and "MathCAD" you will see the pdf file of my entire MathCAD worksheet that I used to create the design Calculator.  The file shows the iterations required to design the transformer to meet the frequency range, on-time limitation, and peak primary current limitations for this particular device.  All of the equations are shown.   I hope it helps.

    Lisa Dinwoodie

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