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UC3902 Load share controller

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cupoftea

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Also, UC3902 needs one SMPS to be the master, having the highest output voltage, and the others to be slaves.....if you randomly group the like for like SMPS's in parallel with UC3902's....how does the one know its the master?........surely the batch of supplies is delivered randomly, and so how does the UC3902 know which is the master one? Or, how does the master know its the master?
 

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