Node Voltage Analysis

Node Voltage Analysis - Node Voltage Analysis Professor...

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Page 1 Node Voltage Analysis Professor Bernhard E. Boser Department of Electrical Engineering and Computer Sciences University of California, Berkeley 1. Basic Procedure Node voltage analysis is a systematic method for finding the voltage at all nodes in an electrical circuit. We explain the steps of the basic procedure for the example shown in the Figure 1. Figure 1 Example circuit for node voltage analysis. a) Identify all nodes in the circuit The wiring connections between circuit elements are called “nodes”. In Figure 1, circuit elements are shown in blue and the wires are green. All the wires that are joined together form a single node, regardless of the number of elements joined in the node. The example circuit has 3 nodes: one joining V1 and R2, one joining R1, R2, and I2, and a final node that joins elements V1, R1, and I2. Note that dots are only to clarify electrical connectivity. A node may have zero, one, or more dots. The number of dots has no relationship with the number of nodes in a circuit. b) Assign a reference node Node voltage analysis determines the voltages at the nodes in a circuit with respect to a reference at which the voltage is defined to be zero. Usually the negative terminal of the supply or a terminal shared

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Node Voltage Analysis - Node Voltage Analysis Professor...

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