RLC Circuit with damping question

Click For Summary
SUMMARY

The discussion centers on solving differential equations for an RLC circuit under overdamping, underdamping, and critical damping conditions. The user seeks to determine the initial current (I0) at time t=0, which was not measured during the experiment. Participants suggest solving the circuit's differential equations using the known initial voltage (V0) and recommend verifying lab results through calculations. This approach ensures accurate predictions of circuit behavior without needing to repeat the experiment.

PREREQUISITES
  • Understanding of RLC circuit theory
  • Familiarity with differential equations
  • Knowledge of damping conditions (overdamping, underdamping, critical damping)
  • Basic circuit analysis techniques
NEXT STEPS
  • Study the derivation of differential equations for RLC circuits
  • Learn how to apply initial conditions in circuit analysis
  • Explore numerical methods for solving differential equations
  • Investigate simulation tools for circuit analysis, such as LTspice
USEFUL FOR

Electrical engineering students, circuit designers, and anyone involved in analyzing RLC circuits and their damping characteristics.

totallydesperate
Messages
2
Reaction score
0
I have an RLC Circuit. I've changed the resistors 3 times to give me a case of overdamping, underdamping, and critical damping. In taking my data (this was a long long time ago) I apparently missed taking measurements of current. I'm trying to solve the three differential equations to make a "predicted results" graph. To do this, I need initial conditions V0, which I have, and I0, which I should have. Is there any way besides redoing my experiment to determine what the current at t=0 would be? If so, what other information do you need from me to explain it to me?
 
Physics news on Phys.org
Sure, solve the circuit's differential equation and plug in your initial conditions. I'd do that anyway to double check what I did in the lab.
 

Similar threads

Basic question about RLC circuits
  • · Replies 32 ·
2
Replies
32
Views
4K
Phase difference RLC circuit
  • · Replies 5 ·
Replies
5
Views
3K
Find w For AC RLC Circuit When Emf is In Phase With Current
  • · Replies 4 ·
Replies
4
Views
2K
Current in RLC Series Circuit: Need Help
  • · Replies 2 ·
Replies
2
Views
2K
Calculation of current in driven series RLC circuit
  • · Replies 8 ·
Replies
8
Views
3K
Combined tensions of an RLC series circuit with AC current
  • · Replies 3 ·
Replies
3
Views
1K
RLC Circuit Analysis with system of ODEs
  • · Replies 2 ·
Replies
2
Views
2K
Question about the energy stored in an RLC parallel resonant network
  • · Replies 44 ·
2
Replies
44
Views
6K
Parallel RLC Admittance, Current and Power Vector Diagrams
  • · Replies 7 ·
Replies
7
Views
2K
Engineering Is My Critically Damped RLC Circuit Formula Correct?
  • · Replies 2 ·
Replies
2
Views
2K