Diode Reverse Recovery and its Effect on Switching Losses

More documents

Recommendations

Info

<strong>Diode</strong> Forced Commutation Behavior V DD DC Bus I L Switch I DIODE - 2 1 + + 3 - V DIODE V SWITCH Step 1: Switch is turned on Current rises Step 2: Switch is turned off Current is circulating Step 3: Switch is turned on again, <strong>Diode</strong> is recovering <strong>and</strong> current continues rising Reference GND I SWITCH 4
Switching loss calculations • Definition of Power Losses P = 1/T* ∫ V(t) * I(t) dt = mean (V(t) * I(t)) I V E = P * t = ∫ V(t) * I(t) dt = area (V(t) * I(t)) t Pon = E ON * f ; Poff = E OFF * f E=(1/2)*V*I*t E=(1/3)*V*I*t E=(1/6)*V*I*t t t t 5
Page 1 and 2: Diode Reve
Page 3: Diode charge distr
Page 7 and 8: Turn On Loss Due to Diode</
Page 9 and 10: Double check of the formulas: Eon c
Page 11 and 12: 8A Stealth II versus Stealth compar
Page 13 and 14: Test circuits Ids
Page 15 and 16: Switching Losses vs. Voltage FQP9N5
Page 17 and 18: Switching Losses vs. Current FQP9N5
Page 19 and 20: Variation of I RRM with load curren
Page 21 and 22: Variation of the E ON Losses with i
Page 23 and 24: Effect of temperat
Page 25 and 26: Switching Losses @ increasing switc
Page 27 and 28: Variation of I RRM with dI/dt for d
Page 29 and 30: Effect of parallel
Page 31: Summary ‣ Reverse</strong

Diode Reverse Recovery and its Effect on Switching Losses

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?