IRAM256-1067A
100
80
60
40
20
0
IOUT = 6A
IOUT = 5A
IOUT = 4A
0
2
4
6
8
10
12
14
16
18
20
PWM Sw itching Frequency - kHz
Figure 6. Total Power Losses vs. PWM Switching Frequency
Sinusoidal Modulation, V+=400V, TJ=150°C, MI=0.8, PF=0.6, fmod=50Hz
100
80
60
40
FPWM = 20kHz
FPWM = 16kHz
FPWM = 6kHz
20
0
0
1
2
3
4
5
6
7
Output Phase Current - ARMS
Figure 7. Total Power Losses vs. Output Phase Current
Sinusoidal Modulation, V+=400V, TJ=150°C, MI=0.8, PF=0.6, fmod=50Hz
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May 14, 2014