Unformatted text preview: rawn from the main supply is the sum of currents drawn by individual loads. Network Analysis by Using Series and Parallel Equivalents As can be seen in the figure, a resistive circuit can be solved by repeated simplification through application of series and parallel equivalents. R2 R2 R1 is
Vs R1 is
R4 R3 Vs R3 || R4 is Vs
R1 R2 R3 || R4 Fig. Network analysis by series and parallel equivalents 27 is R1 R2 R3 || R4 Vs EE1002 Introduction to Circuits and Systems Voltage‐Divider and Current‐Divider Circuits Voltage Division + v2 Fig. Series circuit When voltage is applied to a series combination of resistances, a fraction of the voltage appears across each of the resistances. The voltage drop across each resistance is the current times the resistance. The current i V R1 R2 R3 Hence, V1 iR1 R1
R1 R2 R3 V2 iR2 R2
V R1 R2 R3 V3 iR3 R3
R1 R2 R3 Voltage division principle: In a series circuit, the voltage a across each resistance is a fraction of the total voltage, which is equal to the ratio of the concerned resistance...
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This document was uploaded on 01/20/2014.
- Winter '14