Difference equation of simple RLC Circuit

Click For Summary
SUMMARY

The discussion focuses on deriving the input/output difference equations for a simple RLC circuit. The user presented the equation L d²(i_R)/dt² + R d(i_R)/dt + (1/C) i_R = L d²(i)/dt² + (1/C) i, which correctly represents the relationship between the input current i and the output current i_R in the circuit. Feedback was requested on the accuracy of this formulation, particularly concerning series and parallel configurations. The equation is crucial for analyzing the dynamic behavior of RLC circuits.

PREREQUISITES
  • Understanding of RLC circuit components: Resistor (R), Inductor (L), and Capacitor (C)
  • Familiarity with differential equations and their application in circuit analysis
  • Knowledge of series and parallel circuit configurations
  • Proficiency in using LaTeX for mathematical expressions
NEXT STEPS
  • Study the derivation of differential equations for RLC circuits
  • Learn about the Laplace transform and its application in circuit analysis
  • Explore the differences between series and parallel RLC circuits
  • Practice rendering complex equations in LaTeX for clarity in presentations
USEFUL FOR

Electrical engineering students, circuit designers, and anyone involved in analyzing RLC circuits will benefit from this discussion.

Eng67
Messages
21
Reaction score
0
I have been having a difficult time understanding how to determine the input/output difference equations of a circuit. I believe I am good on series circuits but would like some feedback on Series/parallel determinations. Please look at included file and see if I am on the correct path.
 

Attachments

  • q2.jpg
    q2.jpg
    7.9 KB · Views: 536
Physics news on Phys.org
Are you sure the answer you gave is correct?

I got
L d2(i_R)/dt2 + R d(i_R)/dt + (1/C) i_R = L d2(i)/dt2 + (1/C) i

or if you can render in Latex
[tex]L \frac{d^2 i_R}{dt^2} + R \frac{di_R}{dt} + \frac{i_R}{C} = L \frac{d^2 i}{dt^2} + \frac{i}{C}[/tex]
 

Similar threads

  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 8 ·
Replies
8
Views
3K
  • · Replies 4 ·
Replies
4
Views
1K
  • · Replies 13 ·
Replies
13
Views
8K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 32 ·
2
Replies
32
Views
4K
  • · Replies 25 ·
Replies
25
Views
5K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K