IRFR214, IRFU214, SiHFR214, SiHFU214
VDS
L
VDS
Vary tp to obtain
required IAS
tp
VDD
D.U.T.
IAS
RG
+
-
VDS
VD
10 V
IAS
0.01 Ω
tp
Fig. 12a - Unclamped Inductive Test Circuit
Fig. 12b - Unclamped Inductive Waveforms
Fig. 12c - Maximum Avalanche Energy vs. Drain Current
Current regulator
Same type as D.U.T.
50 kΩ
QG
VGS
12 V
0.2 µF
0.3 µF
QGS
QGD
+
-
VDS
D.U.T.
VG
VGS
3 mA
Charge
IG
ID
Current sampling resistors
Fig. 13a - Basic Gate Charge Waveform
Fig. 13b - Gate Charge Test Circuit
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