70-W424NIA800SH-M800F Datasheet, PDF (26/32 Pages) Vincotech – Snubber diode for optional asymmetrical inductance

70-W424NIA800SH-M800F
datasheet
Buck switching definitions
Figure 8
Buck FWD
Turn-on Switching Waveforms & definition of t _Qrr
(t _Qrr= integrating time for Q _rr)
150
%
100
t_Qint
50
0
-50
-100
-150
-200
2,3
2,4
2,5
2,6
2,7
2,8
2,9 _time(us)3
I _d (100%) =
Q _rr (100%) =
t _Qint =
804
A
132,40 µC
0,33
µs
Figure 9
Buck FWD
Turn-on Switching Waveforms & definition of t _Erec
(t _Erec= integrating time for E _rec)
150
%
125
100
75
50
25
0
-25
2,4
2,5
2,6
2,7
2,8
P _rec (100%) =
E _rec (100%) =
t _{E rec} =
482,56 kW
63,38 mJ
0,33
µs
2,9 _time(us) 3
Figure 10
Buck IGBT switching measurement circuit
copyright Vincotech
26
14 Nov 2015 / Revision 4