Fig. 7 Three phase AC-controller:
Power dissipation versus RMS
output current and ambient
temperature
Circuit
W 3
3xPSKT 310 or
3xPSKH 310
0.15
K/W
Fig. 8 Transient thermal impedance
junction to case (per thyristor or
diode)
ZthJC
30°
DC
RthJC for various conduction angles d:
0.10
0.05
d
DC
RthJC (K/W)
0.112
0.113
0.114
0.115
0.115
180°C
120°C
60°C
30°C
Constants for ZthJC calculation:
i
Rthi (K/W)
ti (s)
1
2
3
0.003
0.099
0.168
0.456
0
0.00
10-3
10-2
10-1
100
101
102
s
0.0143
0.0947
t
0.20
K/W
Fig. 9 Transient thermal impedance
junction to heatsink (per thyristor
or diode)
ZthJK
30°
DC
RthJK for various conduction angles d:
0.15
0.10
0.05
d
RthJK (K/W)
DC
0.152
0.154
0.154
0.155
0.155
180°C
120°C
60°C
30°C
Constants for ZthJK calculation:
i
Rthi (K/W)
ti (s)
0
0.00
1
2
3
4
0.003
0.0143
0.0947
0.04
0.099
0.168
0.456
1.36
10-3
10-2
10-1
100
101
s
102
t
POWERSEM GmbH, Walpersdorfer Str. 53
D - 91126 Schwabach
2002 POWERSEM reserves the right to change limits, test conditions and dimensions
Phone: 09122 - 9764 - 0 FAX: 09122 - 9764 - 20
POWERSEM [ POWERSEM GMBH ]
