作者fairwarning (一轮明月与蓝夜!!)
看板Grad-ProbAsk
标题[理工] [电子]-请问这条回路?
时间Thu Feb 4 13:21:44 2010
[电路图]
http://www.wretch.cc/album/show.php?i=fairwarning&b=82&f=1772864268&p=2
[题目]
Consider the source-follower circuit
The most negative output signal voltage occurs when the transistor just
cuts off.
Find the Vo(min)
[解答]
IDQ*Rs + Vo Vo
iD = ----------------- + ------ >= 0
Rs RL
请问这条基本的回路怎麽来的..? = =
谢谢大家的帮忙喔..
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1F：推 shinyhaung:IDQ*Rs是直流时Vs的电压 再加上小讯号时Vo的电压 02/04 13:26
2F：→ shinyhaung:Vo太小的话会抵消掉Vs 因此找电流大於等於零的时候 02/04 13:27
3F：→ fairwarning:谢谢喔 ^^ 02/04 13:49