The resonant rlc circuits are connected in series and parallel. Rc, rl and rlc circuits 3 0 2 4 6 8 10 0 2 4 6 8 10 12 14 18 20 t v v 0 12 v 0 t 12 figure 4. Rlc series circuit introduction the objective of this experiment is to study the behavior of an rlc series circuit subject to an ac input voltage. The circuit can be thought of as being in two parts. Inductors and capacitors are energy storage devices. How to design and troubleshoot basic electronic circuits. Frequency either from the oscilloscope or the lockin experiment c measure the q from the transients. Rc, rl and rlc circuits introduction in this experiment we will investigate the behavior of circuits containing combinations of resistors, capacitors, and inductors. Measurements performed on an electric circuit include the circuit current, voltage, power, and resistance. Again all the initial variables are remain the same but change their values. This paper presents the remote experiment serial and parallel rlc circuit.
Ece 2120 electrical engineering laboratory ii clemson university. In this gui, you can change the r,l,c parameters and see the effect on the time and frequency responses in real time. Ac circuits rlc circuit introduction an inductor l is an important component of circuits, on the same level as resistors r and the. Again we will do this by placing a charge on the capacitor since there is a resistor in the circuit now there will be losses as the energy passes through the resistor. Rlc circuit demo bundle file exchange matlab central. An inductor l is an important component of circuits, on the same level as resistors r and capacitors. A series rlc circuit this lab will let you learn the characteristics of both amplitude and phase of a series rlc circuit. However, this initial current undergoes damping due to the resistor in place, and the current running through the circuit pretty. This lab experiment uses an exponential voltage source whose time constant is much shorter than the response time of the circuit. In both cases, it was simpler for the actual experiment to. Download as docx, pdf, txt or read online from scribd.
Write and run a pspice program for the circuit in figure 2. Rc and rlc circuits phys1004 parts of the experiment part 1a. Download the pasco capstone configuration file from the lab web site. To see the phase relationships between driving voltage and driven current in such a circuit at, below, and above the resonance frequency. The max current in the circuit is therefore apparatus observations r y102 6800. Rlc natural response derivation our mission is to provide a free, worldclass education to anyone, anywhere. If you continue browsing the site, you agree to the use of cookies on this website.
You can solve this problem using the secondorder circuits table. Now turn back to the rlc circuit, and use kirchoffs law with regards to voltages around the. Calculate i 1, i 2, i 3 and vo for the circuit shown in figure 1 for f 1khz and f 10khz. If the experiment had been repeated with frequencies 10 times higher than. To measure the resonance frequency and the quality factor of a driven rlc circuit by creating a resonance frequency response curve. Now perform measurements for the different types of networks, as described below. Rlc series circuit the rlc series circuit is defined as when a pure resistance of r ohms, a pure inductance of l henry and a pure capacitance of c farads are connected together in series combination with each other. Experiment 10 rlc series circuit resonance in an rlc series circuit objective. Rlc circuit no generator like the lc circuit some energy must initially be placed in this circuit since there is no battery to drive the circuit.
To measure the resonance frequency and the quality factor of a driven rlc circuit by. Ac circuits rlc circuit introduction an inductor l is an important component of circuits, on the same level as resistors r and capacitors c. Summary of circuit elements, impedance, phase angles. The name rlc circuit is derived from the starting letter from the components of resistance, inductor, and capacitor. The student will measure the circuit current, the voltages. In this circuit, the resistance includes every known resistance r in the circuit, which can come from the internal resistance of the generator, the resistance of the inductor, and any real resistors connected. An illustrative example is given with spice simulation.
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. Apr 30, 2014 this rlc circuit figure 1 proved to be an interesting demonstration of the current in a circuit without a voltage source. Chapter 8 natural and step responses of rlc circuits. Rc rlc filters and labview description and background in this lab you will a manipulate instruments manually to determine the inputoutput characteristics of an rc filter, and then b use an instrument control system called labview made by national instruments, inc. To find the dielectric constant of glass sheet by using rlcseries circuit. The inductor is based on the principle of inductance that moving charges create a magnetic eld the reverse is also true a moving magnetic eld creates an electric eld. Repeat the experiment by placing a glass sheet between the plates of capacitor and. Compare measured and calculated voltages and current for a series parallel rlc circuit at discrete frequencies. The dc steady state response of rl and rc circuits are essential opposite of each. This source is applied to an underdamped series rlc circuit. As all the three elements are connected in series so, the current flowing in each element of the circuit will be same as the total current i flowing in the circuit.
Figure 3 setup of the acdc electronics lab circuit board data studio files. The purpose of this experiment was to observe and measure the transient response of rlc circuits to external voltages. Using 12 switches, different connections between a resistor, an inductor and a capacitor, can be made. The experiment will also demonstrate the oscillatory behavior of an lc circuit. Guidelines for the plots see the example on the right 1 always use the scatter plot. The graph to the right shows normalized values of current through a series rlc circuit at frequencies ranging from 0. Circuits laboratory experiment 3 ac circuit analysis 3. It includes numerous successful and classical experiments playing an essential role in every physics laboratory course. The corresponding hardware experiment is analyzed with a lowcost data acquisition hardware platform. The resonance of a series rlc circuit occurs when the inductive and capacitive reactance are equal in magnitude but cancel each other because they are 180 degrees apart in phase. Discharge of a capacitor procedure assemble the circuit shown in figure 5. Transient analysis of the rlc circuit with examples youtube. Once the above m file is captured, the simulations can be run. Guide on resonant rlc circuits working and applications an rlc circuit is an electrical circuit it consists of a resistor, inductor, and capacitor they are represented by the letters r, l and c.
Lets continue the exploration of the frequency response of rlc circuits by investigating the series rlc circuit shown on figure 1. In the given experiment of a seriesparallel rlc circuit see figure 1 the. This laboratory is about studying resonance in rlc series and parallel circuits. To determine the quality factor q of an rlc circuit. Use pspice to determine i 1, i 2, i 3, and vo in figure 1 at f 1khz and f 10khz. First, the generation, transmission, distribution, and consumption of electric energy occur under essentially sinusoidal steadystate conditions. Experiments for first year electrical engg lab 201516 dept of electrical engineering, shri ramdeobaba college of engineering and management, nagpur 4400 india page 11 experiment no. This experiment will be used to examine the sinusoidal frequency response of the series and parallel to see at what frequency the current through an rlc series becomes or the voltage across a parallel rlc circuit reaches maximum value. Multimeter and rlc circuit module introduction recall from last weeks lab that, for a series ac circuit, ohms law still applies, but in order to describe the circuit. How all of the basic electronic components work and how to read their values. How to change the performance of electronic circuits by changing component values within the circuit.
We measured the time varying voltage across the capacitor in a rlc loop when an external voltage was applied. Simplest way to solve for v is to use voltage divider equation in complex notation. Rlc circuits it doesnt matter how beautiful your theory is, it doesnt matter how smart you are. View lab report rc and rlc circuits from phys 1004 at carleton university. Most students complete part a in week one and part b in week two.
Resonant effects of series rlc in circuits lab experiment 2 ece 322 prof. Richard feynman 19181988 objectives to observe free and driven oscillations of an rlc circuit. Theory inductors and capacitors resistors r, inductors l and capacitors c are passive components commonly used in ac electrical circuits. Rc and rlc circuits rc and rlc circuits phys1004 parts. Rc time constant download the logger pro file from culearn. They differ in that a capacitor stores energy as accumulated charge voltage potential and an inductor stores energy in a magnetic field that is due to.
The student will measure the circuit current, the voltages across the resistor and the. To verify experimentally our theoretical predictions concerning the resonant frequency of a series circuit 2. Instrumentation and measurement laboratory in e2 i. Jul 16, 2017 in this video, you will learn about the transient analysis of the rlc circuit. The series rlc resonance circuit introduction thus far we have studied a circuit involving a 1 series resistor r and capacitor c circuit as well as a 2 series resistor r and inductor l circuit. The product of voltage and current is defined as power. The frequency for which the rms voltage attains a maximum.
This experiment shows you some of the properties of circuits which contain resistors, capacitors, and inductors. In both cases, it was simpler for the actual experiment to replace the battery and switch with a signal generator producing a square wave. This experiment will be used to examine the sinusoidal frequency response of the series and. An rlc circuit is an electrical circuit it consists of a resistor, inductor, and capacitor they are represented by the letters r, l and c. Circuits laboratory experiment 3 ac circuit analysis. Rc rlc filters and labview description and background in this lab you will a manipulate instruments manually to determine the inputoutput characteristics of an rc filter, and then b use an instrument control system called labview made by. Electrical resonancerlc circuits 7 check list for your report. So, in this video, the transient response for the series and parallel rlc circuit have been discussed. V rc, rl and rlc circuits v university of michigan.
Introduction this laboratory is about studying resonance in rlc series and parallel circuits. Questions and answers pdf free download also objective type multiple choice. Pdf this paper presents the remote experiment serial and parallel rlc circuit. An inductor shown in figure1a is usually constructed as a coil of. 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. Experiments for first year electrical engg lab 201516. We will study the way voltages and currents change in these circuits when voltages are suddenly applied or removed. Pdf simulation of rlc series and parallel resonance in. The voltage produced by the signal generator is a function of time and at first we write the voltage of the. This laboratory manual for ac electrical circuit analysis, by james m. Generally one differs between two kinds of rlc circuits, the. To change the voltage suddenly, a function generator will be used. To analyze other standard circuit configurations such as lowpass and highpass rlc networks, click on the link below to launch an interactive gui.
Dec 20, 2015 its about rlc circuit used in our daily life slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Rlc circuit in simulinksimpowersystem the model file is downloadable here. Using ni multisim to design and simulate rlc series resonance. Rc and rlc circuits rc and rlc circuits phys1004 parts of. Theoretically, the time constant is given by the product of the resistance and capacitance in the circuit, rc. The impedance of an rlc series circuit at resonance is simply r. Before examining the driven rlc circuit, lets first consider the simple cases where only one circuit element a resistor, an inductor or a capacitor is connected to a sinusoidal voltage source.
To experimentally determine the resonance frequency in a series rlc circuit and compare this to the expected resonance value. To observe electrical oscillations, measure their frequencies, and verify energy relationships in an rlc circuit. What is meant by the resonance frequency of an rlc circuit. At resonance, that difference will be zero, and only r will limit the current flow in the circuit. Chapter 8 natural and step responses of rlc circuits 8. Massachusetts institute of technology department of physics 8. A rlc circuit also oscillating, oscillator or resonant circuit consists of a resistor r, an inductance l and a capacitor c sometimes it is also refered to as lc circuit, because the resistor is used to simulate the lossresistance of a real circuit. The capacitance was varied and the periods of the oscillations were used to determine the inductance in the circuit. Rc, rl and rlc circuits y you have just determined this circuit s time constant from the capacitor discharging curve. In particular, if a coil rotates in the presence of a magnetic field, the induced emf varies sinusoidally with time and leads to an alternating current ac, and provides a source of ac.
Rlc natural response intuition article khan academy. Conclusion rlc circuits modeling and experimental tools. The voltage through an rlc series circuit will be measured as a function of frequency for a fixed applied voltage. The initial current running through the circuit is provided by the charged capacitor. A circuit s impulse response may be calculated mathematically using the dirac delta function as the input forcing function. P517617 lec4, p1 rl c circuits and resonant circuits consider the following rlc series circuit whats vr. Chapter 21 2 voltage and current in rlc circuits iac emf source.