In the voltage-current negative feedback,what is the value of the negative feedback voltage of the output voltage? It says that "Vref=3DVo*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/(=DF+1)),and there also should be an equivalent negative voltage that equals to be vi*rbe/(Re1*(=DF+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!
Who can help me think about the negative feedback in analog circuit?
Mar 31, 2006
3 Replies
alt.binaries.schematics.electronic or draw it in ASCII with AACircuit for instance.
--DF
This is what most folks use (as already mentioned) Andy's ASCII Circuit, courtesy of Andreas Weber:
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(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,
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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:
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Thank you very much!
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