Talk:Millman's theorem

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THis is the more common form of statement:

If any number of admittances Y1, Y2, Y3, ... meet at a common point P, and the voltages from another point N to the free ends of these admittances are E1, E2, E3, ... then the voltage between points P and N is: VPN = (E1Y1 + E2Y2 + E3Y3 + ...) / (Y1 + Y2 + Y3 + ...) VPN = SEY / SY

The short-circuit currents available between points P and N due to each of the voltages E1, E2, E3, ... acting through the respective admitances Y1, Y2, Y3, ... are E1Y1, E2Y2, E3Y3, ... so the voltage between points P and N may be expressed as: VPN = SIsc / SY

--Light current 03:42, 9 April 2006 (UTC)

[edit] Superposition

why is this better than superposition? CorvetteZ51 13:26, 20 June 2007 (UTC)

Or perhaps Thevenin's theorem combined with the Superposition theorem. Isn't a constant current source an uncommon occurance? unsigned comment

The article does not say that this is a better method than superposition or that it is not equivalent to other methods. And no, constant current sources are not uncommon. They are used all the time in electronics, eg current mirrors, long tailed pair etc. Bipolar junction transistors are better modelled using constant current than constant voltage sources. Constant current power systems are also possible, but now everything is the dual of normal - eg, you need to short circuit the load to switch it off rather than open circuit it. Finally, if they are that uncommon, why are there so many people selling them? try this google search string [1]. SpinningSpark 21:19, 5 April 2008 (UTC)

[edit] Tank's method

Does someone have a reference for this. I can find no mention of it anywhere. SpinningSpark 21:21, 5 April 2008 (UTC)