Nodal Analysis Background M. A. Hameed ECSE Department Rensselaer - PowerPoint PPT Presentation

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Nodal Analysis Background M. A. Hameed ECSE Department Rensselaer Polytechnic Institute Intro to ECSE Kirchhoff's Current Law (KCL) Definition: The algebraic sum of all currents at a node is zero. Other words: The sum of currents

Nodal Analysis Background M. A. Hameed ECSE Department Rensselaer Polytechnic Institute Intro to ECSE
Kirchhoff's Current Law (KCL) • Definition: The algebraic sum of all currents at a node is zero. � Other words: The sum of currents entering a node equals sum of currents leaving that node. � Alternatively, if we assume all currents leave a node, the sum of all currents leaving a node is zero. 𝑂 𝐽 𝑜 = 0 𝑜=1 17 September M. Hameed 2019
• KCL is based on conservation of charge • Uses : Along with Ohm’s law, KCL is used to perform Nodal analysis 17 September M. Hameed 2019
⇒ Example high ← - VA VB I R2 - nine-man l = . " Va RT , I ⇒ . = V Iz I § 123 Iz / Rz to b - VD VB Iz = - R 3 t VY÷ + 43,5¥ 3 3¥ " @ node § In " = o B o = n= I . 17 September M. Hameed 2019

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