Guide on Resonant RLC Circuits Working and ApplicationsAn RLC circuit is an electrical circuit it consists of a resistor, inductor, and capacitor they are represented by the letters R, L and C. The resonant RLC circuits are connected in series and parallel. The name RLC circuit is derived from the starting letter from the components of resistance, inductor, and capacitor. For the current purpose, the circuit forms a harmonic oscillator. Using the LC circuit it from resonates. If the resistor increases, it decomposes the oscillations it is known as damping. Some resistance is difficult to find in real-time, even after the resistor is not identified as the component it is solved by the LC circuit.Resonant RLC CircuitsWhile dealing with the resonant it is a complex component and it has a lot of discrepancies. The impedance z and its circuit are defined as Z = R + JXWhere R is resistance, J is an imaginary unit and X is a reactance.There is a pulse signed between R and JX. The imaginary unit is an outside resistance. The stored energy is the components of the capacitor and inductor. The capacitors are stored in the electrical field and inductors are stored in magnitude field.ZC =1/ jωc =-J/ωcZL = jωL From the equation Z = R + JK we can define the reactances asXC = -1/ωcXL =ωLThe absolute value of the reactance of the inductor and capacitor charge with frequency as shown in the below figure.Q FactorThe abbreviation of the Q is defined as a quality and it is also known as a Quality factor. The quality factor describes the under-damped resonator. If under-damped resonator increases the quality factor decreases. The electrical resonator circuit damping generates the loss of energy in resistive components. The mathematical expression of the Q factor is defined as theQ(ω) = maximum power energy stored / power lossThe q factor is reliant on the frequency it is most frequently quote for the resonant frequency and the maximum energy stored in the capacitor and in the inductor can calculate the resonant frequency which is stored in the resonant circuit. The relevant equations areMax energy stored = LI2Lrms = C V2Crms ILrms are denoted as the RMS current through the inductor. It is equal to the total RMS current forming in the circuit in the series circuit and in the parallel circuit it is not equal. Similarly, in the VCrms is a voltage across the capacitor it is shown in the parallel circuit and it is equal to the rms supply voltage but in the series, the circuit is agreed by a potential divider. Thus the series circuit is simple to calculate the maximum energy stored through indicator and in the parallel circuits is considered through a capacitor.Real power degenerates in the resistorP = VRrms IRrms = I2Rrms R = V2Rrms/RThe easiest way to find the series RLC circuitQ(S)ω0 = ω0 I2rms L/ I2rms R = ω0 L / RThe parallel circuit is to consider voltageQ(P)ω0 = ω0 RCV2Crms / V2Crms = ω0 CRSeries RLC CircuitThe RLC series circuit consists of resistance, inductor, and capacitor which are connected in series in the series RLC circuit. The below diagram shows the series RLC circuit. In this circuit capacitor and the inductor will combine each other and increase the frequency. If we can reconnect the Xcis a negative, so it is clear that XL + XC should be equal to zero for this specific frequency XL = -XCimpedance components of imaginary exactly cancel each other. At this frequency movement, the impedance of the circuit has low magnitude and phase angle of zero, it is called as the resonant frequency of the circuit.Series RLC CircuitXL + XC= 0XL = – XC =ω0L=1/ω0C = 1/LCω0 =√1/LC ω0= 2Π f0 Arbitrary RLC CircuitWe can observe the resonance effects by considering the voltage across the resistive components to the input voltage for an example we can consider for the capacitor.VC/V = 1/1-ω2LC + j ωRCFor the values of R, L, and C the ratio is plotted against angular frequency and the figure shows the properties of amplification. Resonant frequencyVC/V- 1/ j ω0RCVC/V- j ω0L/RWe can see that as this is a positive circuit the total amount of power dissipated is constantParallel RLC CircuitIn the parallel RLC circuit the component’s resistance, inductor, and capacitor are connected in parallel. The resonant RLC circuit is a dual series circuit in the voltage and current exchange roles. Hence the circuit has a current gain rather than the impedance and the voltage gain is a maximum at the resonant frequency or minimized. The total impedance of the circuit is given asParallel RLC circuit= R ‖ ZL ‖ ZC = R/ 1- JR (1/XC + 1/ XL)= R / 1+ JR(ωc – 1/ωL)When XC = – XLThe resonant peaks come once again and thus the resonant frequency has the same relationship.ω0 =√1/LC To calculate the current gain by looking the current in each of the arms, then the capacitor gain is given asic/i = jωRC/ 1+ jR(ωc – 1/ωL)The current gain of magnitude is shown in the figure and the resonant frequency is ic/i= jRCApplications of the Resonant RLC CircuitsThe resonant RLC circuits have many applications likeOscillator circuit, radio receivers, and television sets are used for the tuning purpose.The series and RLC circuit mainly involves in signal processing and communication systemThe Series resonant LC circuit is used to provide voltage magnificationSeries and parallel LC circuit are used in induction heatingThis article gives the information about RLC circuit, series and parallels RLC circuits, the Q factor, and applications of the resonant RLC circuits. I hope the given information in the article is helpful to give some good information and understanding the project. For furthermore, if you have any queries regarding this article or on the electrical and electronic projects you can comment in the below section. Here is a question for you, in parallel RLC circuit, which value may always be used as a vector reference?Photo Credits:Series RLC Circuit sarutechParallel RLC circuit wikimedia Share This Post: Facebook Twitter Google+ LinkedIn Pinterest Post navigation ‹ Previous Semiconductor Devices and Circuits, ApplicationsNext › Make a Wireless Robotic Vehicle Using IR Sensors Related Content What is a Carey Foster Bridge & Its Working What is a Spectrum Analyzer : Working & Its Applications What is a Discharge Lamp : Design & Its Working What is an Inductive Reactance : Definition, Unit and FormulaAdd Comment Cancel replyComment:Name * Email * Website