Talk:Return ratio

Observations

Some comments to improve the article:

1. Return Ratio (T) = - Loop Gain (L), they are equal in magnitude, but different sign in the case you mentioned.
2. I think the example is good; considering r_o as well as R_S, since both resistors (although in this case in parallel with others) are important when dealing with input/output impedances.
3. I also agree in that R_D should be called R_C, to follow the traditional nomenclature for the BJT (just as V_CC).
Electroning (talk) 21:29, 19 February 2008 (UTC)

Simplifying example

I think it would be clearer if the example could be simplified.

• A simpler transistor model neglecting r_o would make the figures and equations more compact and at no real loss of generality since r_o is just in parallel with R_D (why's it called "R_D"?)
• R_S could also be neglected

-Roger (talk) 20:21, 28 January 2008 (UTC)

Improved simulation methods

Two recent and improved simulation methods for the return ratio (or loop gain as I prefer to call it), Tian's method and Middlebrook's General Feedback Theorem (GFT), are described on my webpage http://www.geocities.com/frank_wiedmann/loopgain.html.

Frank —Preceding unsigned comment added by 212.144.152.110 (talk) 19:11, 21 July 2008 (UTC)

Undone recent edit

I undid a recent edit, as it fouled up the page pretty bad, formatting wise. Please read Wikipedia:Referencing for beginners for more info on how to do it right, or ask here or the Wikipedia:Help desk for more specific help. --Jayron32 06:07, 6 February 2012 (UTC)