1.二极管的单项导电性2、桥式整流电流流向过程?: 输入输出波形?3、计算:Vo, Io,二极管反向电压?。

2025-04-07 07:23:12
推荐回答(3个)
回答1:

1、二极管由于内部的PN结特点,只能正向偏置时单向导电,反向由于PN结的电场阻碍,电流无法通过。但电压低于一定的很小的值的时候电流无法通过,超过一定的很大的值的时候,也就导通了,所以单向导通是在电压的一个范围内。
2、因为二极管的单向导电性,电流经变压器,从上方进入电路时,从右上的二极管入,经电阻时从上到下经过,然后,通过左下的二极管,形成回路。电流经变压器从下方进入电路时,只能从右下的二极管进入,然后一样是经电阻的上方往下方流动,然后从左上的二极管回到变压器形成回路。
3、波形就是把正弦曲线的波形,X轴以下的部分,翻上去。这样在三极管输出电路,形成了同向的直流的波形电流,周期成为原交流电的一半。
4、反向电压不是计算出来的,取决于二极管制造时。电流也一样。

回答2:

流过D1,R1;输出波形得看输入,V0=0.45V2,I0=0.45V2,二极管反向电压得看二极管规格书

回答3:

咋我设置的io1.1的鼠标都成这问题了。

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