tailieunhanh - Circuits & Electronics P3

Superposition, Thévenin and Norton Fall 2000 Lecture 3 1 .Review Circuit Analysis Methods KVL: ∑Vi = 0 loop KCL: ∑ Ii = 0 node VI Circuit composition rules Node method – the workhorse of KCL at nodes using V ’s referenced from ground (KVL implicit in “ (ei − e j ) G ”) Fall 2000 Lecture 3 2 .Linearity Consider R1 e I V + – R2 Write node equations – e −V e + −I =0 R1 R2 Notice: linear in e,V , I No eV ,VI terms Fall 2000 Lecture 3 3 .Linearity Consider R1 V + – R2 I Write node equations -e −V e + −I =0 R1 R2 Rearrange - 1 1 R + R e 1 2 conductance matrix = linear in e,V , I V +. | CIRCUITS AND ELECTRONICS Superposition Thévenin and Norton Fall 2000 Lecture 3 1 Review Circuit Analysis Methods KVL E V o KCL VI loop node Circuit composition rules Node method - the workhorse of KCL at nodes using V s referenced from ground KVL implicit in e - e j G Fall 2000 Lecture 3 2 Linearity Consider R w. e V R2 Write node equations - e - V e T R -- 0 Notice linear in e V I No eV VI terms Fall 2000 Lecture 3

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