In a MOSFET-controlled synchronous boost converter operating near its maximum duty cycle, which consequence results when gate drive voltage decreases slightly?

💡 Explanation

When gate drive falls near Vth at maximum duty cycle, slower MOSFET turn-on/off occurs to ohmic region resistance increase and higher transition losses; because switching losses increase, therefore efficiency drops and more heat is produced rather than ripple decreases, since switching timing degrades.

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