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← TechnologyWhich risk increases when a boost converter circuit enters discontinuous conduction mode at elevated temperatures?
A)Increased MOSFET voltage overshoot✓
B)Decreased transformer core saturation
C)Improved power conversion efficiency
D)Reduced switching frequency oscillations
💡 Explanation
Increased MOSFET voltage overshoot occurs due to parasitic inductance effects exacerbated by discontinuous conduction, because the inductor current abruptly drops to zero. Therefore, voltage spikes increase; rather than core saturation reducing, as core losses heat the system further.
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