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The voltage drop across the diode for higher voltages is constant at around 0.07V.
We tested the diodes with a supply voltage of 110V, and drew 1A using the DC load. No significant heating or abnormal behaviour was observed.
Another test that would be useful would be 2 ideal diodes in parallel, power from different sources with slightly mismatched supply voltages. However, we only have 1 high voltage power source.
Nomura Ideal Diode Images:
Layout
Layout is probably based on the layout above, judging by the parts on the board.
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