作者rivergirl (Skyground)
看板Electronics
標題[問題] 關於Early effect
時間Wed Aug 16 21:23:39 2006
For a particular npn transistor operating at v(BE) of 670mV and Ic =
3 mA, the i(C)-v(BE) characteristic has a slope of (三乘十的負五次方) .
To what value of output resistance does this correspond?
我不太懂的是,他就已經把slope求出來了,幹麻還問resistance阿?
同ㄧ題:What is the value of the Early voltage for this transistor?
為何答案不是r(0) multiplate Ic?
同ㄧ題:For operation at 30 mA, what would the output resistance become?
應該是V(A)/30(mA) 吧....但V(A)就求錯了....所以也錯了....@@
最大問題是第ㄧ部份,請大家幫忙一下,謝謝.
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.113.95.240
1F：推 Briankk:slope是歐姆的倒數 08/16 21:51
※ 編輯: rivergirl 來自: 140.113.95.240 (08/16 21:54)
2F：推 rivergirl:我知道了....我會錯意...謝謝! 08/16 21:55
3F：推 rogerable:光靠這些條件這題真的能解嗎... 08/19 23:57