What is Rlc: Definition and 443 Discussions

An RLC circuit is an electrical circuit consisting of a resistor (R), an inductor (L), and a capacitor (C), connected in series or in parallel. The name of the circuit is derived from the letters that are used to denote the constituent components of this circuit, where the sequence of the components may vary from RLC.
The circuit forms a harmonic oscillator for current, and resonates in a similar way as an LC circuit. Introducing the resistor increases the decay of these oscillations, which is also known as damping. The resistor also reduces the peak resonant frequency. In ordinary conditions, some resistance is unavoidable even if a resistor is not specifically included as a component; an ideal, pure LC circuit exists only in the domain of superconductivity, a physical effect demonstrated to this point only at temperatures far below and/or pressures far above what are found naturally anywhere on the Earth's surface.
RLC circuits have many applications as oscillator circuits. Radio receivers and television sets use them for tuning to select a narrow frequency range from ambient radio waves. In this role, the circuit is often referred to as a tuned circuit. An RLC circuit can be used as a band-pass filter, band-stop filter, low-pass filter or high-pass filter. The tuning application, for instance, is an example of band-pass filtering. The RLC filter is described as a second-order circuit, meaning that any voltage or current in the circuit can be described by a second-order differential equation in circuit analysis.
The three circuit elements, R, L and C, can be combined in a number of different topologies. All three elements in series or all three elements in parallel are the simplest in concept and the most straightforward to analyse. There are, however, other arrangements, some with practical importance in real circuits. One issue often encountered is the need to take into account inductor resistance. Inductors are typically constructed from coils of wire, the resistance of which is not usually desirable, but it often has a significant effect on the circuit.

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  1. M

    Amplifier gain in resonant RLC circuit

    Amplifier gain ##A_V## is defined as the ratio of an amplifier's output voltage to its input voltage, i.e. ##\displaystyle\frac{V_R}{V}=\frac{IR}{IZ}=\frac{R}{R}=0.5## at 200 Hz. But this is absurd. Where have I gone wrong? Please nudge me in the right direction.
  2. Franklie001

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    Good morning, I need some help solving those two question. I've attached my attempted solution below. Could i solve the transfer function any further? Thank you for your help
  3. greg_rack

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  4. A

    Adjusting the Power Factor of an RLC circuit

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  5. P

    Parallel RLC Admittance, Current and Power Vector Diagrams

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  6. Melon

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  7. P

    I Charge in RLC circuit when starting charges are 2Q and Q

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  8. I

    Cutoff frequency for this RLC circuit

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  9. I

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  10. X

    Engineering Finding Voltage in RLC circuit

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  11. cianfa72

    Question about the energy stored in an RLC parallel resonant network

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  12. Butterfly41398

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  13. wcjy

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  14. wcjy

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  15. H

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  16. H

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  17. N

    Using Complex Impedances in these RLC Circuit Calculations

  18. jisbon

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  19. E

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  20. B

    Engineering RLC Series Network: Impedance, Current, Power Factor, Phasor Diagram

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  21. C

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  22. Muskyboi

    Engineering [Electrical engineering] Second order Parallel RLC Circuits.

  23. O

    RLC Circuits: Exploring Dynamic Systems

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  24. Zahid Iftikhar

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  25. paulmdrdo

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  26. DeclanKerr

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  27. Miles123K

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  28. paulmdrdo

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  29. paulmdrdo

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  30. ItsTheSebbe

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  31. J

    Engineering AC Source driving an RLC circuit....

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  32. MaxR2018

    Engineering RLC circuit solved with Laplace transformation

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  33. Felipe Lincoln

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  34. M

    Hi, can somebody explain this RLC circuit to me?

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  35. T

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    Homework Statement I'm reading the textbook section covering damped series RLC circuits (provided below). I'm wondering why the author stipulates "When R is small..." Homework Equations Given above. The Attempt at a Solution Given above. Any gentle and courteous comments are welcome!
  36. J

    Engineering What is the Time Constant for an RLC Circuit?

    Homework Statement Homework Equations I know for RL circuit T = L/R For RC circuit it is RC But how to go ahead for RLC circuit.The Attempt at a Solution I calculated for RL as 1/4 = 0.25 And RC as 1 Then I added both time constant and got 1.25 Book answer is 0.5. How to solve this? In...
  37. R

    Engineering Impulse Response of an RLC Circuit

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  38. Drakkith

    Engineering Finding Current in a Parallel RLC Circuit

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  39. Jayalk97

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  40. W

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  41. C

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  42. Y

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  43. E

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  44. C

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  45. C

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    I'm having trouble understanding RLC circuits. If I have a resistor, capacitor, and inductor connected in series and I'm GIVEN the current through the resistor, How do I find the currents through each component? Is it the current that was given for the resistor (since they're in series), or do I...
  46. e0ne199

    Engineering Problem with series RLC circuit and dependent source

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  47. M

    Solve RLC Circuit Problem Homework

    Homework Statement http://imgur.com/a/3xSYb Homework Equations RLC equations: q= Qmax e ^ -Rt/2L cos wd t wd = [ 1/LC - (R/2L)^2] ^ 1/2 The Attempt at a Solution So, I am trying using Kirchoff law, but not sure what the question asks. I thought it may be a trick and after a long...
  48. gimak

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    Homework Statement Homework Equations Q(t) = Aei(wt+Φ); dQ/dt = i*w*Q(t); E = (L/2)(dQ/dt)2 + Q2/2C i = √-1 E above is average energy The Attempt at a Solution When I plug in Q(t) & dQ/dt into equation above (E) I get: A2L/2(w02-w2)cos[2(wt+Φ)] w02 = 1/LC After I plugged both of them in...
  49. Arman777

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  50. baby_1

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