Talk:Network analysis (electrical circuits)

message: See Y-delta transform for material moved to an existing page.
Charles Matthews 21:24, 18 Jun 2004 (UTC)
thread_title: Y-Δ article

message: does anyone know why this method isn't mentioned on the page? Plugwash 15:13, 8 Dec 2004 (UTC)
thread_title: branch current

message: The opening paragraph needs to be rewritten.  First of all, it ought to use the phrase "analysis of resistive circuits", or the page should be moved.  Secondly, I'm pretty sure the definition of when two circuits are equivalent is wrong.  It currently says:
:Two electric circuits are said to be equivalent with respect to a pair of terminals if the voltages across the terminals and currents through the terminals are identical for both networks.
I think it should be something like:
:Two electric circuits are equivalent with respect to a pair of terminals if equal voltages across the terminals produce equal currents.
But I'm not an electrical engineer, so I'd prefer if someone else actually changes it.  Dbenbenn 22:07, 24 Dec 2004 (UTC)
thread_title: Opening paragraph

message: Not realizing that this article existed, I created the DC circuit analysis article.  Accordingly, I have added a link to this article instead of adding any additional detail to mine. Alfred Centauri 19:52, 23 August 2005 (UTC)
replies: text: thats what redirects are for ;) Plugwash 21:42, 23 August 2005 (UTC)
replies: text: How nice - did you bother to read my article to see if any part of it could be merged with yours?  Oh, never mind.  I'll do it myself... Alfred Centauri 22:56, 24 August 2005 (UTC)
replies: text: Done.  I have planned to write two articles entitled AC circuit and AC circuit analysis.  These seem like appropriate and conventional titles to me.  Are you aware of similar articles with different titles? Alfred Centauri 23:09, 24 August 2005 (UTC)
replies: text: There is already a note on this page on how to extend the methods to AC cuircuits which i have just expanded a bit. I don't know of any articles specifically about AC analysys though. Plugwash 23:43, 24 August 2005 (UTC)
replies: text: Since this article is about resistive circuits, it seems reasonable to me to limit the scope to just that.  The mention that these techniques can be generalized to AC circuits seems like a good place to put a link to AC circuit analysis.  The new article would not need to rehash all the methods covered here except to point out some new effects such as resonance and complex power.  My goal with these articles is not to rewrite what has already been written on Wikipedia.  Instead, I want to give a relatively brief summary of definitions, concepts, new results, and then point to other articles for additional information. Alfred Centauri 00:23, 25 August 2005 (UTC)
thread_title:  DC circuit analysis 

message: I propose this article be renamed "Analysis of passive circuits" or something since its not specific to resistive circuits. Roger 18:58, 27 June 2007 (UTC)
thread_title:  Article can be generalized 

message: The contents of this article have been pasted here as it is now a redirect.  I don't think there is much that needs to be incorporated into the article page, but for what it's worth, here it is. SpinningSpark 19:39, 5 April 2008 (UTC)
thread_title:  Contents of old Circuit Analysis article 

message: I have removed the stuff about mesh analysis not being possible in 3D networks.  I say it is possible, eg a cube of resistors can be analysed quite satisfactorily with mesh analysis.  Mesh analysis is based on Kirchoffs laws which are universally applicable so it must be true.  If you think I am wrong please provide a reference that says so or a counter example. SpinningSpark 20:18, 5 April 2008 (UTC)
thread_title:  3-dimensional mesh analysis 

message: I have an online circuit analyzer program, which runs in every JAVA-enabled browser. It includes theoretical explanation as well.
I think it could be a good external link, but I don't want to add it because of the conflict of interest gudelines. Could an editor please check it, and add it to this page, if he/she thinks that it's relevant enough? The page:
http://www.petertoth.eu/circuitanalyzer.html
Peter  —Preceding unsigned comment added by 84.206.41.132 (talk) 06:10, 12 June 2009 (UTC)
thread_title:  New external link? 

message: Where it says
 It can be shown that this is sufficient to find the minimal network for any arbitrary network with successive applications of series, parallel, Y-Δ and Δ-Y; no more complex transformations are required.
Where is a proof of that?
In fact, I don't think so. Consider a tesseract with edges made up of resistors of various resistances. The problem is to find the equivalent resistance across two opposite vertices. Each vertex has four resistors connected to it. Nowhere is there a triangle in the network. Therefore we cannot apply neither a delta, nor a wye transformation. Neither can we find any parallel or series resistors. So we are stuck, if we are only restricted to series, parallel, Y-Δ and Δ-Y transformations. QED.
Is there an error in the above, or in the article's claim?  — Preceding unsigned comment added by 128.250.80.15 (talk) 06:32, 9 June 2011 (UTC)
replies: text: You are right, this needs to be taken out. SpinningSpark 13:57, 9 June 2011 (UTC)
thread_title:  Wye-delta claim in article 

message: Just noticed this page says that a node is "a point at which terminals of more than two components are joined," while the node article says that "node refers to any point on a circuit where two or more circuit elements meet." So I'm not sure if nodes connect more than 2 or at least 2 components, but I thought I should point this out. 201.171.99.70 (talk) 21:12, 1 December 2013 (UTC)
replies: text: Yes, a node can be a junction of two elements.  However, in analysis it is usual to treat series connected elements as all belonging to the same branch of the graph, hence such nodes do not occur. SpinningSpark 09:37, 2 December 2013 (UTC)
thread_title:  contradiction with [[node (circuits)|node]] article 

message: The Y-Δ button appears twice in the menu at the side, under impedance transforms. I know only basic editing, so please fix and remove this comment.
:There are two separate buttons for Y-Δ and Δ-Y.  They were meant to link to the relevant sections of the article, but the section links had become broken. Now fixed. SpinningSpark 14:11, 9 June 2016 (UTC)
thread_title: Y-Δ Button

message: An editor has identified a potential problem with the redirect :ECA---Electrical Circuit Analysis and has thus listed it for discussion. This discussion will occur at Wikipedia:Redirects for discussion/Log/2022 May 4#ECA---Electrical Circuit Analysis until a consensus is reached, and readers of this page are welcome to contribute to the discussion.  Steel1943 (talk) 19:04, 4 May 2022 (UTC)
thread_title:  "ECA---Electrical Circuit Analysis" listed at [[Wikipedia:Redirects for discussion|Redirects for discussion]] 

message: Please, mention Antimetric electrical network in this article. Thanks! — Preceding unsigned comment added by Alexander Davronov (talk • contribs) 19:23, 11 May 2022 (UTC)
replies: text: I don't think its important enough to be included here (and I'm the person who wrote that article). WP:PROPORTIONAL. SpinningSpark 19:00, 12 May 2022 (UTC)
thread_title:  Antimetric electrical network