Positive SSL
1 某全波整流電路,已知輸入峰值電壓為50V,且負載電阻RL=125Ω ,則此電路之平均直流功率為何?
A 8.09W
B 9.29W
C 10.19W
D 12.39W

Vdc=0.636Vm=0.636×50=31.8V

Idc=31.8/125 = 254.4mA

Pdc=Idc×Vdc

Pdc=31.8×254.4m=8.09W