Why Is My Series RLC Circuit Simulation Not Working as Expected in PSpice?

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SUMMARY

The forum discussion focuses on troubleshooting an RLC series circuit simulation in PSpice, specifically with a capacitor of 1µF, an inductor of 150µH, and resistors of 10Ω, 20Ω, and 40Ω. The user reports that the simulation graph does not reflect expected behaviors for underdamped, overdamped, and critically damped responses. Key issues include the need for proper initial conditions and the distinction between steady-state and transient response analysis in PSpice.

PREREQUISITES
  • Understanding of RLC circuit theory
  • Familiarity with PSpice simulation software
  • Knowledge of transient vs. steady-state response
  • Basic circuit design principles
NEXT STEPS
  • Learn how to set initial conditions in PSpice simulations
  • Research the differences between transient and steady-state analysis in circuit simulations
  • Explore PSpice plotting tools for visualizing circuit responses
  • Study the effects of varying resistance values on RLC circuit behavior
USEFUL FOR

Electronics students, circuit designers, and engineers working with PSpice who need to understand RLC circuit dynamics and simulation troubleshooting.

abbasi
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i m trying to design RLC series circuit on Pspice and parctically showing Under , Over and , Critical response
i have capacitor of 1uF an inductor of 150uH and resistor ( can choose any) but for these responses 10,40,20 ohms respectivly but the graph is not coming as it should be like it is decreasing from 0 in underdamp please help me in Pspice or give me some help that i can do...
 
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abbasi said:
i m trying to design RLC series circuit on Pspice and parctically showing Under , Over and , Critical response
i have capacitor of 1uF an inductor of 150uH and resistor ( can choose any) but for these responses 10,40,20 ohms respectivly but the graph is not coming as it should be like it is decreasing from 0 in underdamp please help me in Pspice or give me some help that i can do...

To show those behaviours, do you look at steady-state or transient response? If transient, how do you set up some initial conditions?

Please show us some of your PSPICE circuits and plots so that we can help you more. Also tell us what you expect, and what doesn't look right to you yet.
 

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