【简答题】如图,单相桥式整流电容滤波电路,已知变压器次级交流电压为20V,问: (1) 输出直流电压 U O = (2) 若电路中,出现任一只二极管虚焊开路,则输出直流电压 U O = ( 3 )若电路中,电容出现虚焊开路,则输出直流电压 U O = ( 4 )若负载 R L 开路 ,则输出直流电压 U O = 。
【简答题】Put the sentences in the correct order to make a conversation. Write the numbers on the line. _____ Let’s see. The local leaves from track 23 on the lower level. _____ That sounds OK. What’s the track...