AC Two-Way Switch: Setting Up & Testing in PSPICE

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SUMMARY

The discussion focuses on setting up and testing an AC two-way switch in PSPICE, specifically using the components sw_tclose and sw_topen from the evaluation library. The user aims to connect outputs from a capacitor and an inductor to a switch that alternates between these outputs before sending the signal to a load resistor. Key insights include monitoring the outputs simultaneously to observe reactance changes with frequency and understanding resonance effects when the reactances of the capacitor and inductor are equal.

PREREQUISITES
  • Understanding of AC circuit theory
  • Familiarity with PSPICE simulation software
  • Knowledge of capacitor and inductor behavior in circuits
  • Basic concepts of reactance and resonance
NEXT STEPS
  • Learn how to implement sw_tclose and sw_topen in PSPICE simulations
  • Research the effects of frequency on inductor and capacitor reactance
  • Explore methods to observe resonance in RLC circuits
  • Investigate advanced PSPICE features for monitoring multiple outputs
USEFUL FOR

Electrical engineers, circuit designers, and students working with AC circuits and simulation tools like PSPICE who are interested in understanding switch behavior and resonance in RLC configurations.

nst.john
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Hello People!

So currently I have an AC input going into a capacitor and inductor in parallel, and I want the output from the capacitor and inductor to go into a switch that flips from outputting the capacitive load's output and the inductor's load output, a little diagram is shown below:
upload_2017-4-29_12-59-9.png

Instead of two resistors, both outputs would go into a switch with the switch's output connected to a load resistor. How could I go about making this switch and checking it in PSPICE? Thank you in advance!
 
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switch in pspice called sw_tclose or sw_topen (N.o_Or N.C switch), both can be found in eval library

edit: the emoji stands for normally open, I can fix it but I find that amusing
 
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Fantastic, thank you very much!
 
nst.john said:
Hello People!

So currently I have an AC input going into a capacitor and inductor in parallel, and I want the output from the capacitor and inductor to go into a switch that flips from outputting the capacitive load's output and the inductor's load output, a little diagram is shown below:
View attachment 197483
Instead of two resistors, both outputs would go into a switch with the switch's output connected to a load resistor. How could I go about making this switch and checking it in PSPICE? Thank you in advance!
You could just monitor two outputs at the same time with a Spice program.

You would see that the inductor increases its reactance with rising frequency, so you would get less output. And the capacitor has the opposite effect.

You could observe the changes in phase that occur if you change the frequency.

However, you would miss the resonance effect that occurs when the reactances of the capacitor and inductor are equal.

For this, you could connect both the inductor and capacitor together at one end of a resistor which is connected to ground at the other end.
 

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