Core - Electrical Engineering

Chapter 9

Frequency Response

9.1 : Network Function of a Circuit

9.1 : Network Function of a Circuit

The frequency response of a circuit, which characterizes its behavior with varying signal frequency, can be analyzed using the transfer or network ...

9.2 : Frequency Response of a Circuit

9.2 : Frequency Response of a Circuit

Consider an inductive circuit in the time domain. The equivalent frequency domain circuit is obtained by replacing the resistance and inductance with ...

9.3 : Gain

In communication systems, gain quantifies the extent of signal amplification or attenuation. Power gain denotes the common logarithm of the ratio of ...

9.4 : Bode Plots

9.4 : Bode Plots

Consider an electrocardiogram unit that utilizes a low-pass filter with a complex network function represented by its magnitude and phase angle. The ...

9.5 : Transfer function and Bode Plots-I

9.5 : Transfer function and Bode Plots-I

Consider the transfer function of a system expressed in standard form. The transfer function has a constant gain, a zero and a pole at the origin, a ...

9.6 : Transfer function and Bode Plots-II

9.6 : Transfer function and Bode Plots-II

In the standard form, the transfer function is shown in constant gain, poles/zeros at origin, simple poles/zeros, and quadratic poles/zeros; each ...

9.7 : Bode Plots Construction

9.7 : Bode Plots Construction

Tissue electrodes in electrocardiograms (E-C-G) establish a conductive pathway for electrical currents between the tissues and the measuring electrodes, ...

9.8 : Series Resonance

9.8 : Series Resonance

Consider a radio tuner that precisely selects a signal of a particular frequency. The tuner consists of a series-connected resistor, capacitor, and ...

9.9 : Characteristics of Series Resonant Circuit

9.9 : Characteristics of Series Resonant Circuit

Consider a radio transmitter unit that incorporates an RLC series resonance band-pass filter. This circuit's frequency response indicates that the ...

9.10 : Parallel Resonance

9.10 : Parallel Resonance

Consider an AM radio tuner comprising a parallel connection of a resistor, capacitor, and inductor, which collectively contribute to the circuit's ...

9.11 : Frequency Response of Op Amp Circuits

9.11 : Frequency Response of Op Amp Circuits

Consider a guitar pickup connected to a buffer amplifier. This buffer amplifier, with a non-inverting op-amp, bridges the guitar's high impedance and ...

9.12 : Passive Filters

9.12 : Passive Filters

Consider an audio speaker system with filter circuits. These circuits selectively pass desired frequencies while attenuating others, limiting signals to a ...

9.13 : Active Filters

9.13 : Active Filters

Active filters are electronic circuits that use operational amplifiers (op-amps), resistors, and capacitors to filter out unwanted frequency components ...

9.14 : Scaling

Magnitude and frequency scaling simplifies filter design by calibrating filter responses and circuit parameters to fit within usable ranges. Magnitude ...

9.15 : Design Example

9.15 : Design Example

An engineer designs a circuit for a speaker system with a 2 kHz crossover frequency requirement, considering the speaker's resistance of 8 ohms. The ...

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