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Are there models of ADP1074 and ADP1071-2 for LTSPICE available?

Are these models available?  If not what would be the closest part that I can use?  Also do you have any suggested reading on synchronous flyback vs synchronous forward (with active clamp) topologies?  I am trying to decide which most appropriate for this design.  It would be good to find some info which helps you choose appropriate parts for the power stage (transformer, mosfets ect).

Thanks,

Dan Baldor

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  • Thanks.  Do you know if there is any reason you can’t achieve the same power efficiencies with the ADP1071-2 as you do with the LT4295?  Specifically I am thinking of basing my design on the 40W PoE 12V 3A flyback design on page 18 of the datasheet.   I looked at the reference design for the ADP1071-2 and it seems to be hitting worse efficiencies and also needing a lot more snubber circuitry around the fets.  Not really sure why that is – maybe the design is targeting a smaller transformer.

    Thanks

    Dan

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  • Thanks.  Do you know if there is any reason you can’t achieve the same power efficiencies with the ADP1071-2 as you do with the LT4295?  Specifically I am thinking of basing my design on the 40W PoE 12V 3A flyback design on page 18 of the datasheet.   I looked at the reference design for the ADP1071-2 and it seems to be hitting worse efficiencies and also needing a lot more snubber circuitry around the fets.  Not really sure why that is – maybe the design is targeting a smaller transformer.

    Thanks

    Dan

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