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AC Components and Circuits
RLC Circuit Analysis

Section 8-2 Parallel RLC Circuits


 


Parallel RLC Circuit

 


When IC is greater than IL, the phase is positive.

When  IC is less than IL, the phase is negative

When  IC = IL the current for the resistance is equal to the total current (IT)

 

Procedure

Analysis of a parallel RLC circuit, given the values of VT, XL, XC, and R

Step 1: Determine the voltage for each component

VR = VL = VC = VT

 

Step 2: Calculate IR, IL, and IC

IR = VR
R
IL = VL
XL
IC = VC
XC

Step 3 Calculate the total current

IT =

IR2 + (IC IL)2

 

Step 3 Determine the current for each component

IR = IL = IC = IT

Step 4 Calculate the voltage for each component

VR = IT x R
VL = IT x XL
VC = IT x XC

Step 5 Determine the phase angle for each component and the total phase angle

qR = 0
qL = 90
qC = 90
qT = IC - IL
IR

 

 

 

 

 

 

 

 

 

 

David L. Heiserman, Editor

Copyright   SweetHaven Publishing Services
All Rights Reserved

Revised: June 06, 2015