Transcription of Frequency response: Resonance, Bandwidth, Q factor
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Frequency response: Resonance, Bandwidth, Q factor
Frequency response: Resonance, Bandwidth, Q factor Resonance. Let s continue the exploration of the Frequency response of RLC circuits by investigating the series RLC circuit shown on Figure 1. RRCVR+-VsI Figure 1 The magnitude of the transfer function when the output is taken across the resistor is ()()222()1 VRRCHVsLCRC = + ( ) At the Frequency for which the term 21LC 0 = the magnitude becomes ()1H = ( ) The dependence of ()H on Frequency is shown on Figure 2 for which L=47mH and C=47 F and for various values of R. Spring 2006, Chaniotakis and Cory 1 Figure 2. The Frequency 01LC = is called the resonance Frequency of the RLC network.
due to 60 Hz line power is the band reject filter sown below. VR +-C L Vs Figure 6 The impedance seen by the source is 1 2 jL ZR LC ω ω =+ − (1.28) When 0 1 LC ωω== the impedance becomes infinite. The LC combination resembles an open circuit. If we take the output across the resistor the magnitude of the transfer function is ()() 2 2 2 (1 ...
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