User talk:Alexmailbox100

March 2012

Welcome to Wikipedia. Although everyone is welcome to contribute to the encyclopedia, one or more of the external links you added to the page Network analysis (electrical circuits) with this edit do not comply with our guidelines for external links and have been removed. Wikipedia is not a collection of links; nor should it be used as a platform for advertising or promotion, and doing so is contrary to the goals of this project. Because Wikipedia uses nofollow tags, external links do not alter search engine rankings. If you feel the link should be added to the article, please discuss it on the article's talk page before reinserting it. Please take a look at the welcome page to learn more about contributing constructively to this encyclopedia. Thank you. Tbhotch.^™ Grammatically incorrect? Correct it! See terms and conditions. 22:51, 27 March 2012 (UTC)

The external links section is not there to drive traffic to your site. Please stop inserting links. What made you think that nasty popup adds that refuse to close were ever going to be acceptable? SpinningSpark 22:56, 27 March 2012 (UTC)

Easy Nodal Equation Writing Method

Anshi Chen provided a simple method of writing circuit Nodal equations. The idea was published in Electronic Design in 2008 and voted to be the best Idea-for-Design at the year end. He also provided another detailed description of this method in 2010 and this article was among the top 10 by the end of the year. So I suggest that this method be listed or referenced in Wikipedia.

The method needs to write down two expressions for a node: 1)The total current flowing away from this node through local resistors as if its neighbor nodes are zeroed; 2)The total current flowing into this node as if the node itself is zeroed. Then let the two expression equal to get its nodal equation.

The advantage of the method include: • Simplicity: the left side only involves the (middle) node voltage and its local resistors • Symmetry: both sides have the same number of 1/R’s • Unknown variables are naturally separated • Node equations can be directly written without any modifications to the circuit like converting voltage sources to Norton current sources or supernodes

I'd like to provide the links for the two articles: http://electronicdesign.com/author/36241/AnshiChen

That's certainly an interesting method, but I have two problems with the link. Firstly, that's not a peer reviewed journal is it? I would be very wary of relying on what is essentially a mathematical process without some sort of formal reference for it. Secondly it is very heavy on ads with lots of flashing and scrolling. The first two times I opened it I had to close popups before I could read anything. There are plenty of reliable sources that describe nodal analysis without all the ads.

Possibly if other reliable sources have discussed this method it could be described in the nodal analysis article (although I don't think the more general network analysis article is appropriate). SpinningSpark 23:10, 28 March 2012 (UTC)