Nodal Analysis: Determining Voltages and Currents in Circuits, Essays (university) of Electronics

Download Nodal Analysis: Determining Voltages and Currents in Circuits and more Essays (university) Electronics in PDF only on Docsity! Lecture 4 Nodal Analysis 1 Nodal Analysis 2 One of the systematic ways to determine every voltage and current in a circuit Steps In Nodal Analysis Step 1 • Pick one node as a reference node - Its voltage will be arbitrarily defined to be zero Steps In Nodal Analysis Step 2 • Label the voltage at the other nodes Steps In Nodal Analysis Step 3 • Label the currents flowing through each of the components in the circuit Steps In Nodal Analysis Step 6 • Solve for node voltages ( ) ( ) b 1 2 3 Node V , current out = current in 0 6 12 0 4 3 8 b bb i i i V VV + + = − − + + = Ω Ω Ω Steps In Nodal Analysis ( ) ( ) ( ) ( ) 6 12 0 4 3 8 6 12 0 4 4 3 8 8 1 1 1 6 12 4 3 8 4 8 17 24 24 8 (24 *24 ) (8 *17) 4.235 b bb b bb b b b b V V V VV V VVV V V V V V V V V V V − − + + = Ω Ω Ω − + + − = Ω Ω Ω Ω Ω     + + = +    Ω Ω Ω Ω Ω      =  Ω Ω  Ω = Ω = Steps In Nodal Analysis Step 7 • Solve for currents ( ) ( ) 1 2 3 : 6 0.44 4 1.41 3 12 0.97 8 b b b Currents V i A V i A V i A − = = − Ω = = Ω − = = − Ω