Lecture Notes - Chapter 7
Resonant Circuits
- The Capacitor and Inductor in Series
- Introduce the term RLC circuit (figure 7.2).
- Discuss the equation for net reactance of a capacitor and
inductor in series.
- Discuss the equation for the impedance of an RLC circuit.
- Discuss the variation in Vout with frequency
for an RLC circuit with Vout taken across
the resistor. (figure 7.4).
- Introduce the term; resonance frequency (fr).
- Discuss the equation for the resonance frequency of an RLC
circuit.
- Discuss the variation in Vout with frequency
for an RLC circuit with Vout taken across
the capacitor and inductor (figure 7.6).
- Introduce the term; notch filter.
- Project 7.1, The Notch Filter.
- Review the circuit diagram (figure 7.7).
- Discuss the test setup (figure 7.10).
- The Capacitor and Inductor Parallel in an RLC circuit
- Discuss the equation for the resonance frequency of an RLC
circuit when the capacitor and inductor are parallel.
- Introduce the term: DC resistance of the inductor (r).
- Discuss the equation for the resonance frequency when XL
is greater than 10 times the DC resistance of the inductor.
- Introduce the term: quality factor of the circuit (Q).
- Discuss the equation for Q.
- Discuss the variation in Vout with frequency
for an parallel RLC circuit with Vout taken
across the resistor (figure 7.16).
- Discuss the variation in Vout with frequency
for a parallel RLC circuit with Vout taken
across the capacitor and inductor (figure 7.18).
- The Output Curve
- Introduce the term: half power points (figure 7.19).
- Introduce the term: bandwidth (BW).
- Discuss the equation for bandwidth.
- Introduce the term: bandpass filter.
- Compare the output curve
for a bandpass filter (figure 7.20) to the output curve of a notch filter (figure
7.21).
- Project 7.2 The Band Pass Filter
- Review the circuit diagram (figure 7.22).
- Discuss the test setup (figure 7.25).
This page includes material extracted, by
permission of the publisher, Wiley Publishing, from Complete
Electronics Self-Teaching Guide with Projects, ISBN: 9781118217320.
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