AO3401
Gate Charge Test Circuit & Waveform
Vgs
Qg
-10V
VDC
VDC
DUT
Vgs
Ig
Resistive Switching Test Circuit & Waveforms
RL
Vds
Vgs
Vgs
Rg
DUT
VDC
Vgs
Vds
Unclamped Inductive Switching (UIS) Test Circuit & Waveforms
L
Vds
Id
Vgs
Rg
DUT
Vgs
Vgs
Vgs
VDC
Diode Recovery Test Circuit & Waveforms
Vds +
DUT
Vgs
t
rr
Vds -
Isd
Vgs
Ig
L
VDC
+
Vdd
-
-Vds
Rev 6: Feb. 2011
www.aosmd.com
+
-
-
+
+
Charge
t
on
t
d(on)
t
r
t
d(off)
t
off
t
f
+
-
-
-
+
-
-
Vds
Qgs
Qgd
Vdd
90%
10%
E
AR
= 1/2 LI
AR
2
Vds
BV
DSS
Vdd
Id
I
AR
Q
rr
= - Idt
-Isd
-I
F
dI/dt
-I
RM
Vdd
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