Application Note - Semikron

Application Note AN-11001
D1 & D4:
P
P
cond
MIˆ
12
3V
cos( )
sin( )
2r
Iˆ
1
cos(
f 0
f )
K I
Iˆ
V
KV
1
cos( GI
CC
sw
f
sw
Esw
)
I
ref
V
ref 2
1
2
D2 & D3:
P
cond
P sw
MIˆ
12
0
3V
cos( )
sin( )
2r
Iˆ
1
cos(
f 0
f
)
2
TNPC:
The power losses of the eight semiconductors in 3L TNPC topology are different from those of 3L NPC and can be
calculated as follows:
T1 & T4:
P
P
cond
MIˆ
12
3V
cos(
)
sin( )
2r
Iˆ
1
cos(
ce0
ce )
K I
Iˆ
V
KV
1
cos( GI
CC
sw
f
sw
Esw
)
I
ref
V
ref 2
1
2
T2 & T3:
P
P
cond
Iˆ
V
12
ˆ
2
12
6M
cos( )
sin( )
3M
cos( )
r I 3
4M
1
cos ( )
ce0
ce
K I
Iˆ
V
KV
1
cos( GI
CC
sw
f
sw
Esw
)
I
ref
V
ref 2
1
D2 & D3:
P
P
cond
Iˆ
V
12
ˆ
2
12
3M
2
cos( )
2sin( )
3M
cos( )
r I 3
4M
1
cos ( )
f 0
ce
K I
Iˆ
V
KV
1
cos( GI
CC
sw
f
sw
Esw
)
I
ref
V
ref 2
1
D1 & D4:
P
P
cond
MIˆ
12
3V
cos( )
sin( )
2r
Iˆ
1
cos(
f 0
f )
K I
Iˆ
V
KV
1
cos( GI
CC
sw
f
sw
Esw
)
I
ref
V
ref 2
1
2
10 / 12 2012-09-03 – Rev04 © by SEMIKRON