Test Circuits and Waveforms
FIG.7 -
t TEST CIRCUIT
rr
FIG. 8 -
t
WAVEFORMS AND DEFINITIONS
rr
V
R
A MPLITUDE A ND
GE
CONTR OL dI /dt
G
F
L
t
t CONTR OL I
2 F
1 AND
DUT
CURRENT
SENSE
dI
F
t
rr
I
R
F
G
dt
t
t
b
+
a
0
V
V
DD
GE
-
IGBT
t
1
0.25 I
RM
t
2
I
RM
10 -AVALANCHE CURRENT AND VOLTAGE
WAVEFORMS
FIG. 9 - AVALANCHE ENERGY
TEST CIRCUIT
FIG.
I
= 1A
MAX
L = 40mH
R < 0.1
2
= 1/2LI [V
E
/(V - V )]
R(A VL) DD
AV L
= IGBT (BV
R(A VL)
> DUT
V
I
AV L
Q
V
)
R(A VL)
1
CES
L
R
+
V
CURRENT
SENSE
I
L
L
DD
DD
I
V
Q
1
V
DUT
-
t
t
t
2
t
0
1
YENYO TECHNOLOGY CO., LTD.
R2, JUL-11
3 / 3
YENYO [ YENYO TECHNOLOGY CO., LTD ]
