Who can help me think about the negative feedback in analog circuit?

[[email protected]]

In the voltage-current negative feedback,what is the value of the
negative feedback voltage of the output voltage?
It says that "Vref=Vo*Re1/(Re1+Rf)" in the text book,why is that?
Should I consider the output resistance of the emission pole of the
first transistor?I think the Re1 should be taken place by
Re1//(rbe/(ß+1)),and there also should be an equivalent negative
voltage that equals to be vi*rbe/(Re1*(ß+1)).
I think there may be something wrong with my consideration, who can
help me?
Is there any way to upload the schematic?
Thanks in advance!

 

[Deefoo]

Is there any way to upload the schematic?
Thanks in advance!

alt.binaries.schematics.electronic or draw it in ASCII with AACircuit for
instance.

--DF

 

[JeffM]

Is there any way to upload the schematic?

zhenyuanwu @ gmail

This is what most folks use (as already mentioned)
Andy's ASCII Circuit, courtesy of Andreas Weber:
http://translate.google.com/translate?u=http://www.tech-chat.de/aacircuit.html+&langpair=de|en

(Word-for-word language translation is always entertaining.
Judging by your name, this could be a double-whammy.)

Because this group is text-only and Usenet is archived,
http://groups.google.com/group/sci.electronics.design/browse_frm/thread/e44ab6be6cc474d9
ASCII diagrams are, IMO, the way to go.
..
..
In addition to a.b.s.e, as mentioned
there is a third way (IMO, far inferior) way:
Park the picture on an image server:
http://www.google.com/search?q=image-hosting

 

[[email protected]]

Thank you very much!