在如图所示电路中,设 v i 为正弦波, R L =8 ,要求最大输出功率 P om =9W 。 BJT 饱和压降 V CES 可以忽略不计。当输出功率最大( P om =9W )时,电源供给的功率 P V
A.
7.62W
B.
8.52W
C.
11.46W
D.
16.64W
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