AO4830
Gate Charge Test Circuit & Waveform
Vgs
Qg
+
VDC
10V
VDC
-
DUT
Vgs
Ig
+
Vds
-
Qgs
Qgd
Charge
Resistive Switching Test Circuit & Waveforms
RL
Vds
Vds
Vgs
Rg
DUT
VDC
+
Vdd
-
Vgs
t
d(on)
t
on
t
r
t
d(off)
t
off
t
f
90%
10%
Vgs
Unclamped Inductive Switching (UIS) Test Circuit & Waveforms
L
Vds
Id
Vgs
Rg
DUT
Vgs
Vgs
Vgs
Vds
E
AR
= 1/2 LI
AR
2
BV
DSS
VDC
+
Vdd
-
Id
I
AR
Diode Recovery Test Circuit & Waveforms
Vds +
DUT
Vgs
t
rr
Q
rr
= - Idt
Vds -
Isd
Vgs
L
Isd
I
F
dI/dt
I
RM
Vdd
VDC
+
Vdd
-
Vds
Ig
Alpha & Omega Semiconductor, Ltd.
www.aosmd.com