C&H Technology VS-GA250SA60S - Manual (Page 7)

VS-GA250SA60S
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Vishay Semiconductors
Revision: 20-Jul-12 6 Document Number: 94704
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Fig. 16a - Clamped Inductive Load Test Circuit Fig. 16b - Pulsed Collector Current Test Circuit
Fig. 17a - Switching Lost Test Circuit
Fig. 17b - Switching Loss Waveforms
D.U.T.
50 V
L
V
C
*
* Driver same type as D.U.T.; V
C
= 80 % of V
CE
(max)
Note: Due to the 50 V power supply, pulse width and inductor
will increase to obtain rated I
d
1000 V
1
2
1
2
480 V
4 x I
C
at 25 °C
480 µF
960 V
0 V to 480 V
R
L
= =
50 V
Driver*
1000 V
D.U.T.
I
C
V
C
L
* Driver same type as D.U.T., V
C
= 480 V
3
1
2
t = 5 µs t
d (on)
t
f t
r
90 %
t
d (off)
10 %
90 %
10 %
5 %
V
C
I
C
E
on
E
off
E
ts
= (E
on
+ E
off
)
1
2
3