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17. Determine the critical frequencies associated with the low-frequency response of the FET am- plifier in Figure 10–60. Indicate the dominant critical frequency and draw the Bode plot.

17. Determine the critical frequencies associated with the low-frequency response of the FET am- plifier in Figure 10–60. Indicate the dominant critical frequency and draw the Bode plot.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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### Exercise 17: Low-Frequency Response Analysis of FET Amplifier **Objective:** Determine the critical frequencies associated with the low-frequency response of the FET amplifier shown in Figure 10-60. Identify the dominant critical frequency and draw the Bode plot. **Figure Description:** - **Input Source ($V_{\text{in}}$):** Connected to the gate through a series resistor ($R_S = 600\,\Omega$). - **Decoupling Capacitors:** Two capacitors, both valued at $0.005\,\mu\text{F}$, are connected at the input and output. - **Resistances:** - $R_S = 600\,\Omega$ - $R_G = 10\,\text{M}\Omega$ - $R_D = 560\,\Omega$ - $R_L = 10\,\text{k}\Omega$ - **DC Power Supply:** $V_{DD} = +15\,\text{V}$ is connected to the drain. - **JFET Parameters:** - $C_{\text{iss}} = 10\,\text{pF}$ - $C_{\text{rss}} = 4\,\text{pF}$ - $I_{\text{GSS}} = 50\,\text{nA @ V_{\text{GS}}} = -10\,\text{V}$ - $V_{\text{GS(off)}} = -6\,\text{V}$ - $I_{\text{DSS}} = 15\,\text{mA}$ **Explanation:** The circuit diagram illustrates a Field Effect Transistor (FET) amplifier. The task is to calculate the amplifier’s critical frequencies affecting its low-frequency response and plot the corresponding Bode plot for the dominant frequency component. This requires analyzing capacitive and resistive elements that contribute to low-frequency roll-off, determining the cut-off frequencies, and understanding their individual and combined effects on the overall frequency response of the amplifier.
Transcribed Image Text:### Exercise 17: Low-Frequency Response Analysis of FET Amplifier **Objective:** Determine the critical frequencies associated with the low-frequency response of the FET amplifier shown in Figure 10-60. Identify the dominant critical frequency and draw the Bode plot. **Figure Description:** - **Input Source ($V_{\text{in}}$):** Connected to the gate through a series resistor ($R_S = 600\,\Omega$). - **Decoupling Capacitors:** Two capacitors, both valued at $0.005\,\mu\text{F}$, are connected at the input and output. - **Resistances:** - $R_S = 600\,\Omega$ - $R_G = 10\,\text{M}\Omega$ - $R_D = 560\,\Omega$ - $R_L = 10\,\text{k}\Omega$ - **DC Power Supply:** $V_{DD} = +15\,\text{V}$ is connected to the drain. - **JFET Parameters:** - $C_{\text{iss}} = 10\,\text{pF}$ - $C_{\text{rss}} = 4\,\text{pF}$ - $I_{\text{GSS}} = 50\,\text{nA @ V_{\text{GS}}} = -10\,\text{V}$ - $V_{\text{GS(off)}} = -6\,\text{V}$ - $I_{\text{DSS}} = 15\,\text{mA}$ **Explanation:** The circuit diagram illustrates a Field Effect Transistor (FET) amplifier. The task is to calculate the amplifier’s critical frequencies affecting its low-frequency response and plot the corresponding Bode plot for the dominant frequency component. This requires analyzing capacitive and resistive elements that contribute to low-frequency roll-off, determining the cut-off frequencies, and understanding their individual and combined effects on the overall frequency response of the amplifier.
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