Compare measured and calculated voltages and current for a series parallel rlc circuit at discrete frequencies. 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. Inductors and capacitors are energy storage devices. Theory inductors and capacitors resistors r, inductors l and capacitors c are passive components commonly used in ac electrical circuits. Ac circuits rlc circuit introduction an inductor l is an important component of circuits, on the same level as resistors r and capacitors c.
Experiment 10 rlc series circuit resonance in an rlc series circuit objective. The graph to the right shows normalized values of current through a series rlc circuit at frequencies ranging from 0. Rlc circuit demo bundle file exchange matlab central. Instrumentation and measurement laboratory in e2 i. An illustrative example is given with spice simulation. Figure 3 setup of the acdc electronics lab circuit board data studio files. Apr 30, 2014 this rlc circuit figure 1 proved to be an interesting demonstration of the current in a circuit without a voltage source. Ac circuits rlc circuit introduction an inductor l is an important component of circuits, on the same level as resistors r and the.
How to design and troubleshoot basic electronic circuits. 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. The max current in the circuit is therefore apparatus observations r y102 6800. To determine the quality factor q of an rlc circuit. Repeat the experiment by placing a glass sheet between the plates of capacitor and. We measured the time varying voltage across the capacitor in a rlc loop when an external voltage was applied. Circuits laboratory experiment 3 ac circuit analysis 3. This laboratory is about studying resonance in rlc series and parallel circuits. The initial current running through the circuit is provided by the charged capacitor. Most students complete part a in week one and part b in week two. Circuits laboratory experiment 3 ac circuit analysis.
However, this initial current undergoes damping due to the resistor in place, and the current running through the circuit pretty. Simplest way to solve for v is to use voltage divider equation in complex notation. Rlc circuit in simulinksimpowersystem the model file is downloadable here. To see the phase relationships between driving voltage and driven current in such a circuit at, below, and above the resonance frequency. Experiments for first year electrical engg lab 201516. To measure the resonance frequency and the quality factor of a driven rlc circuit by. A circuit s impulse response may be calculated mathematically using the dirac delta function as the input forcing function. Chapter 8 natural and step responses of rlc circuits. In both cases, it was simpler for the actual experiment to replace the battery and switch with a signal generator producing a square wave. Questions and answers pdf free download also objective type multiple choice. To experimentally determine the resonance frequency in a series rlc circuit and compare this to the expected resonance value.
Rc, rl and rlc circuits introduction in this experiment we will investigate the behavior of circuits containing combinations of resistors, capacitors, and inductors. Rlc natural response derivation our mission is to provide a free, worldclass education to anyone, anywhere. To measure the resonance frequency and the quality factor of a driven rlc circuit by creating a resonance frequency response curve. The circuit can be thought of as being in two parts. P517617 lec4, p1 rl c circuits and resonant circuits consider the following rlc series circuit whats vr. Ece 2120 electrical engineering laboratory ii clemson university. Pdf simulation of rlc series and parallel resonance in. This laboratory manual for ac electrical circuit analysis, by james m. To verify experimentally our theoretical predictions concerning the resonant frequency of a series circuit 2.
Rc and rlc circuits phys1004 parts of the experiment part 1a. The impedance of an rlc series circuit at resonance is simply r. The student will measure the circuit current, the voltages. The name rlc circuit is derived from the starting letter from the components of resistance, inductor, and capacitor. The capacitance was varied and the periods of the oscillations were used to determine the inductance in the circuit. The resonant rlc circuits are connected in series and parallel. Rlc circuits it doesnt matter how beautiful your theory is, it doesnt matter how smart you are. This source is applied to an underdamped series rlc circuit. Rlc natural response intuition article khan academy. Richard feynman 19181988 objectives to observe free and driven oscillations of an rlc circuit. 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. An inductor l is an important component of circuits, on the same level as resistors r and capacitors.
If you continue browsing the site, you agree to the use of cookies on this website. It includes numerous successful and classical experiments playing an essential role in every physics laboratory course. To find the dielectric constant of glass sheet by using rlcseries circuit. Pdf this paper presents the remote experiment serial and parallel rlc circuit. Calculate i 1, i 2, i 3 and vo for the circuit shown in figure 1 for f 1khz and f 10khz. Conclusion rlc circuits modeling and experimental tools. Summary of circuit elements, impedance, phase angles. 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. Transient analysis of the rlc circuit with examples youtube. An inductor shown in figure1a is usually constructed as a coil of. The student will measure the circuit current, the voltages across the resistor and the. The purpose of this experiment was to observe and measure the transient response of rlc circuits to external voltages.
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. 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. Guidelines for the plots see the example on the right 1 always use the scatter plot. The voltage through an rlc series circuit will be measured as a function of frequency for a fixed applied voltage. In both cases, it was simpler for the actual experiment to. Write and run a pspice program for the circuit in figure 2. 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. 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. Rc and rlc circuits rc and rlc circuits phys1004 parts. Jul 16, 2017 in this video, you will learn about the transient analysis of the rlc circuit. This experiment shows you some of the properties of circuits which contain resistors, capacitors, and inductors. In this gui, you can change the r,l,c parameters and see the effect on the time and frequency responses in real time.
So, in this video, the transient response for the series and parallel rlc circuit have been discussed. 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. Use pspice to determine i 1, i 2, i 3, and vo in figure 1 at f 1khz and f 10khz. 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.
The voltage produced by the signal generator is a function of time and at first we write the voltage of the. Lets continue the exploration of the frequency response of rlc circuits by investigating the series rlc circuit shown on figure 1. The product of voltage and current is defined as power. Rc time constant download the logger pro file from culearn.
The corresponding hardware experiment is analyzed with a lowcost data acquisition hardware platform. 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. Now perform measurements for the different types of networks, as described below. 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.
This lab experiment uses an exponential voltage source whose time constant is much shorter than the response time of the circuit. To print or download this file, click the link below. Now turn back to the rlc circuit, and use kirchoffs law with regards to voltages around the. Resonant effects of series rlc in circuits lab experiment 2 ece 322 prof. Using ni multisim to design and simulate rlc series. In effect, you have made a potential divider using a resistor the 100k whose resistance. If the experiment had been repeated with frequencies 10 times higher than. View lab report rc and rlc circuits from phys 1004 at carleton university. Chapter 8 natural and step responses of rlc circuits 8. To observe electrical oscillations, measure their frequencies, and verify energy relationships in an rlc circuit.
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. Rc and rlc circuits rc and rlc circuits phys1004 parts of. 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. 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. V rc, rl and rlc circuits v university of michigan. You can solve this problem using the secondorder circuits table. 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. Using ni multisim to design and simulate rlc series resonance. Introduction this laboratory is about studying resonance in rlc series and parallel circuits. 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.
Rc, rl and rlc circuits y you have just determined this circuit s time constant from the capacitor discharging curve. Theoretically, the time constant is given by the product of the resistance and capacitance in the circuit, rc. 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. A series rlc circuit this lab will let you learn the characteristics of both amplitude and phase of a series rlc circuit. Measurements performed on an electric circuit include the circuit current, voltage, power, and resistance. At resonance, that difference will be zero, and only r will limit the current flow in the circuit. This experiment will be used to examine the sinusoidal frequency response of the series and.
Once the above m file is captured, the simulations can be run. 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. Again all the initial variables are remain the same but change their values. Download the pasco capstone configuration file from the lab web site. The dc steady state response of rl and rc circuits are essential opposite of each. 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. 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. 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. Frequency either from the oscilloscope or the lockin experiment c measure the q from the transients. First, the generation, transmission, distribution, and consumption of electric energy occur under essentially sinusoidal steadystate conditions. Massachusetts institute of technology department of physics 8. Download as docx, pdf, txt or read online from scribd.
How to change the performance of electronic circuits by changing component values within the circuit. In the given experiment of a seriesparallel rlc circuit see figure 1 the. The frequency for which the rms voltage attains a maximum. The circuit behaves as a rl series circuit in which the current lags behind the applied voltage and the. This article explains the analysis of series rlc circuit driven by a step voltage input. Using 12 switches, different connections between a resistor, an inductor and a capacitor, can be made. What is meant by the resonance frequency of an rlc circuit. The experiment will also demonstrate the oscillatory behavior of an lc circuit. 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.
This paper presents the remote experiment serial and parallel rlc circuit. How all of the basic electronic components work and how to read their values. To change the voltage suddenly, a function generator will be used. We will study the way voltages and currents change in these circuits when voltages are suddenly applied or removed. 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. Electrical resonancerlc circuits 7 check list for your report. Discharge of a capacitor procedure assemble the circuit shown in figure 5. Generally one differs between two kinds of rlc circuits, the.
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