IR3103
10
9
8
7
6
5
4
3
2
1
T J = 150°C
Trapezoidal Modulation
HS
LS
I O
F PWM = 12 kHz
F PWM = 16 kHz
F PWM = 20 kHz
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
Output Phase Current - A RMS
Figure 5. Total Power Losses as Function of Output Phase Current
V DD =300V, T J =150°C, Modulation Depth=0.5, PF=0.99
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
T J = 150°C
Trapezoidal Modulation
F PWM = 12 kHz
F PWM = 16 kHz
F PWM = 20 kHz
HS
LS
I O
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Output Phase Current - A RMS
Figure 6. Maximum Allowable Ambient Temperature vs. Output Phase Current
V DD =300V, T J =150°C, Modulation Depth=0.5, PF=0.99
8
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