an interview question

taofeng · 發表於 2009-5-5 01:22:12

hi,
attached is an interview question ! interesting reader can have a look and discuss it.

regards,

jef

kj.guo · 發表於 2009-5-15 21:33:38

这是一个self bias 的结构，通常Ib可以忽略，Vbe=0.7v，所以Vce=1v

kukyxu · 發表於 2009-5-14 08:47:35

Vbe=0.7, 流过base的电流很小，可以忽略，故而Vce=0.7X10/7=1V
kankan la

jesseyu · 發表於 2009-5-6 16:23:35

I's not like that, the VBE is not necessarily 0.7V in such configuration. ICE=(0.7VCE/Rb)*Beta, then IR=I-ICE. Just my opinion

taofeng · 發表於 2009-5-5 15:14:12

what if Ibase is not so small ??

regards,

cirand · 發表於 2009-5-5 09:04:26

Vbe=0.7, 流过base的电流很小，可以忽略，故而Vce=0.7X10/7=1V

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[問題求助] an interview question