Figure 10: Test circuit 1 for Dynamic IBO and VBO parameters
100 V / µs, di /dt < 10 A / µs, Ipp = 100 A
2Ω
U
10 µF
45 Ω
66 Ω 470 Ω
SMP100MC
83 Ω
0.36 nF
46 µH
KeyTek 'System 2' generator with PN246I module
1 kV / µs, di /dt < 10 A / µs, Ipp = 10 A
26 µH
250 Ω
47 Ω
46 µH
U
60 µF
12 Ω
KeyTek 'System 2' generator with PN246I module
Figure 11: Test circuit 2 for IBO and VBO parameters
K
ton = 20ms
220V 50Hz
Vout
R1 = 140Ω
R2 = 240Ω
DUT
1/4
IBO
measurement
VBO
measurement
TEST PROCEDURE
Pulse test duration (tp = 20ms):
● for Bidirectional devices = Switch K is closed
● for Unidirectional devices = Switch K is open
VOUT selection:
● Device with VBO < 200V ➔ VOUT = 250 VRMS, R1 = 140Ω
● Device with VBO ≤ 200V ➔ VOUT = 480 VRMS, R2 = 240Ω
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