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Chapter 9

Frequency Response

Função de rede de um circuito
Função de rede de um circuito
The frequency response of a circuit, which characterizes its behavior with varying signal frequency, can be analyzed using the transfer or network ...
Resposta de frequência de um circuito
Resposta de frequência de um circuito
Consider an inductive circuit in the time domain. The equivalent frequency domain circuit is obtained by replacing the resistance and inductance with ...
Ganhar
Ganhar
In communication systems, gain quantifies the extent of signal amplification or attenuation. Power gain denotes the common logarithm of the ratio of ...
Gráficos de Bode
Gráficos de Bode
Consider an electrocardiogram unit that utilizes a low-pass filter with a complex network function represented by its magnitude and phase angle. The ...
Função de transferência e Bode Plots-I
Função de transferência e 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 ...
Função de transferência e Bode Plots-II
Função de transferência e Bode Plots-II
Consider the transfer function in its standard form, with poles and zeros For a transfer function with a simple zero, the magnitude gain at small ...
Construção de Bode Plots
Construção de Bode Plots
Tissue electrodes in electrocardiograms (E-C-G) establish a conductive pathway for electrical currents between the tissues and the measuring electrodes, ...
Ressonância em série
Ressonância em série
Consider a radio tuner that precisely selects a signal of a particular frequency. The tuner consists of a series-connected resistor, capacitor, and ...
Características do circuito ressonante em série
Características do circuito ressonante em série
Consider a radio transmitter unit that incorporates an RLC series resonance band-pass filter. This circuit's frequency response indicates that the ...
Ressonância paralela
Ressonância paralela
Consider an AM radio tuner comprising a parallel connection of a resistor, capacitor, and inductor, which collectively contribute to the circuit's ...
Resposta de frequência de circuitos de amplificador operacional
Resposta de frequência de circuitos de amplificador operacional
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 ...
Filtros passivos
Filtros passivos
Consider an audio speaker system with filter circuits. These circuits selectively pass desired frequencies while attenuating others, limiting signals to a ...
Filtros ativos
Filtros ativos
Certain passive filters incorporate expensive inductors designed not to exceed unity gain. These filters may exhibit reduced attenuation efficacy at ...
Escala
Escala
Magnitude and frequency scaling simplifies filter design by calibrating filter responses and circuit parameters to fit within usable ranges. Magnitude ...
Exemplo de design
Exemplo de design
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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