MOSFET Switching Loss Calculator
Calculate turn-on, turn-off, and dead time losses in MOSFET power switches for thermal design.
Input Parameters
V
A
ns
ns
kHz
ns
Total Switching Loss
20.14 W
Turn-On Energy
100.00 uJ
Turn-Off Energy
100.00 uJ
Switching Power
20.00 W
Dead Time Loss
0.140 W
Design Notes
Switching losses are proportional to frequency. Consider using soft-switching techniques (ZVS/ZCS) to reduce losses at high frequencies. The total switching energy per cycle is200.00 uJ.
Switching Loss Theory
Switching losses occur during the transition between on and off states when both voltage and current are present simultaneously. The energy lost during each transition is approximately triangular.
Psw = 0.5 x Vds x Id x (trise + tfall) x fsw
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.