70-W424NIA800SH-M800F Datasheet, PDF (29/32 Pages) Vincotech – Snubber diode for optional asymmetrical inductance

70-W424NIA800SH-M800F
datasheet
Boost switching definitions
Figure 8
Boost FWD
Turn-on Switching Waveforms & definition of t _Qrr
(t _Qrr= integrating time for Q _rr)
150
%
100
t_Qint
50
0
-50
-100
2,9
3,3
3,7
I _d (100%) =
Q _rr (100%) =
t _Qint =
827
A
83,52 µC
1,17
µs
4,1
4,5
time(us)
Figure 9
Boost FWD
Turn-on Switching Waveforms & definition of t _Erec
(t _Erec= integrating time for E _rec)
125
%
100
75
50
25
0
-25
3,2
3,5
3,8
4,1
P _rec (100%) =
E _rec (100%) =
t _{E rec} =
496,41 kW
44,13 mJ
1,17
µs
4,4
4,7
time(us)
Figure 10
Boost IGBT switching measurement circuit
copyright Vincotech
29
14 Nov 2015 / Revision 4