IRAM256-1067A
160
140
120
100
80
FPWM = 20kHz
FPWM = 16kHz
FPWM = 6kHz
60
40
0
1
2
3
4
5
6
7
Output Phase Current - ARMS
Figure 8. Maximum Allowable Case Temperature vs. Output RMS Current per Phase
Sinusoidal Modulation, V+=400V, TJ=150°C, MI=0.8, PF=0.6, fmod=50Hz
160
TJ avg = 1.11 x TTherm + 13
150
140
130
120
110
100
90
123
65
70
75
80
85
90
95
100 105 110 115 120 125 130
Internal Thermistor Temperature Equivalent Read Out - °C
Figure 9. Estimated Maximum IGBT Junction Temperature vs. Thermistor Temperature
Sinusoidal Modulation, V+=400V, Iphase=5Arms, fsw=6kHz, fmod=50Hz, MI=0.8, PF=0.6
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May 14, 2014
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