[sdiy] Thevenin's and Norton's Theorems

[John L Marshall]

Thevenin's theorem reduces a circuit to a single Vth and Rth, open circuit
voltage.

Norton's theorem reduces a circuit to a single In and Rn, short circuit
current.

Ohms law works in most applications. Exceptions are bridges, multiple
voltage sources or multiple current sources.

Take care,
John
www.sound-photo.com
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----- Original Message -----
From: "Dustin Withers" <clockwork at softhome.net>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Wednesday, April 02, 2003 7:49 PM
Subject: [sdiy] Thevenin's and Norton's Theorems


> Ok so I can build kits and read datasheets but I decided to increase my
> knowledge of electricity and since I haven't had a class in many years
I've
> forgotten all the theory.  Anyhow got a book and got through a fair amount
> of it until I got to this Thevenin's and Norton's theory along with
Voltage
> Deviders and Current Deviders.  I figured I won't get very far not
> understanding these theories, so what are they used for?  Are they used
just
> to figure out E-Out off of a tap between to resistors?  I'm sorry this
> question is so vague but I rather confused.  It seems to me you could just
> use Ohm's law to figure out what needs to be and what doesn't.  Am I
wrong?
>
> Thanks :)
>
> -dustin
>