The triode doesn't turn on - it shouldn't be a current problem

CSDN Q & A 2022-01-15 02:35:51

A circuit , among CTR Not used , It can be taken as 3.3 Voltage source ;

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Start thinking :X The voltage is high enough , The triode is turned on directly ,UD In any case 0

As a result, the simulation hit the face , The triode doesn't conduct at all

Want to know why it doesn't turn on


thank
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