respectfully, the 26 milli-ohm res has 474 watts for 135 amps only, each of the diodes has 8 watts for every 10 amps thru - so the losses mount up for non ideal components
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the numbers given at top imply a 92.5% eff which should be possible with synch rect boost diodes/fets - splitting into 4 phase shifted units of 34 amps each - ave ...
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[ the 26 milli-ohms shown actually drops the Vin by 6.7V and consumes 1730 watts dropping the eff to 50% - better to have 4 x 0.026 ohm R's I'm thinking ]