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[单选题]
三相全控桥式整流电路带电阻负载,当触发角α=0°时,输出的负载电压平均值为()
A.0.45U2
B.0.9U2
C.1.17U2
D.2.34U2
查看答案
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A.0.45U2
B.0.9U2
C.1.17U2
D.2.34U2
A.58.5V
B.98V
C.117V
D.340V
A.Ud=1.17U2cosα (0°≤α≤90°)
B.Ud=2.34U2cosα (0°≤α≤90°)
C.Ud=0.45U2cosα (0°≤α≤90°)
D.Ud=0.9U2cosα (0°≤α≤90°)