Diode Reverse Recovery Calculator
Calculate reverse recovery losses and timing for power diode selection in switching applications.
Diode Parameters
A
V
ns
uC
kHz
Total System Loss
46.67 W
Recovery Loss
20.00 W
Peak Irr
40.0 A
Recovery Energy
200.0 uJ
Additional Switch Loss
26.67 W
Timing Analysis
ta (abrupt): 33.3 nstb (recovery): 16.7 nsdi/dt: 1.20 A/ns
Reverse Recovery Theory
When a diode turns off, stored charge must be removed, causing reverse current flow. This reverse recovery causes power loss in both the diode and the switching device. Soft recovery diodes (high S factor) reduce EMI but may have longer recovery times.
Prr = 0.5 x Qrr x Vr x fsw