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.
A band pass filter becomes more selective (small B) as Q increases. 6.071/22.071 Spring 2006, Chaniotakis and Cory 6 . Similarly we may calculate the resonance characteristics of the parallel RLC circuit. I R LC s(t) IR(t) Figure 4 Here the impedance seen by the current source is //
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