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A BJT amplifier circuit shown to the right. Vcc=10V, I=1mA, and VT 25 mV at 300K. a)Type of amplifier is Perform de analysis to determine: b) IE= c) Ic= R₁ 15K 4K Cs гинн Rs B 5K %₂ 8=99 R₂5K

A BJT amplifier circuit shown to the right. Vcc=10V, I=1mA, and VT 25 mV at 300K. a)Type of amplifier is Perform de analysis to determine: b) IE= c) Ic= R₁ 15K 4K Cs гинн Rs B 5K %₂ 8=99 R₂5K

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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**BJT Amplifier Circuit Analysis** A BJT amplifier circuit is shown with the following parameters: - \( V_{CC} = 10V \) - \( I = 1mA \) - \( V_T = 25mV \) at 300K. **Tasks:** a) Type of amplifier is ________________ **Perform DC analysis to determine:** b) \( I_E = \) ________________ c) \( I_C = \) ________________ d) \( I_B = \) ________________ e) DC voltage \( V_C = \) ________________ f) \( g_m = \) ________________ g) \( r_{\pi} = \) ________________ h) \( r_e = \) ________________ **Circuit Diagram Explanation:** The circuit diagram illustrates a common emitter BJT amplifier setup with the following components: - **Transistor Parameters:** A bipolar junction transistor \( \beta = 99 \) with terminals labeled B (base), C (collector), and E (emitter). - **Resistors:** - \( R_1 = 15K \Omega \) - \( R_2 = 10K \Omega \) - \( R_S = 4K \Omega \) - \( R_C = 5K \Omega \) - \( R_L = 5K \Omega \) - **Voltage Sources:** - DC voltage source \( V_{CC} \) connected to the collector. - DC current source \( I \) at the emitter. - **Capacitors:** - \( C_S \) is used for AC coupling at the base. - \( C_E \) bypasses \( R_E \) for AC signals. - **Voltages:** - \( V_s \) represents the input signal. - \( V_o \) represents the output voltage. This analysis will help in understanding the DC operating point and small-signal parameters of the amplifier.
Transcribed Image Text:**BJT Amplifier Circuit Analysis** A BJT amplifier circuit is shown with the following parameters: - \( V_{CC} = 10V \) - \( I = 1mA \) - \( V_T = 25mV \) at 300K. **Tasks:** a) Type of amplifier is ________________ **Perform DC analysis to determine:** b) \( I_E = \) ________________ c) \( I_C = \) ________________ d) \( I_B = \) ________________ e) DC voltage \( V_C = \) ________________ f) \( g_m = \) ________________ g) \( r_{\pi} = \) ________________ h) \( r_e = \) ________________ **Circuit Diagram Explanation:** The circuit diagram illustrates a common emitter BJT amplifier setup with the following components: - **Transistor Parameters:** A bipolar junction transistor \( \beta = 99 \) with terminals labeled B (base), C (collector), and E (emitter). - **Resistors:** - \( R_1 = 15K \Omega \) - \( R_2 = 10K \Omega \) - \( R_S = 4K \Omega \) - \( R_C = 5K \Omega \) - \( R_L = 5K \Omega \) - **Voltage Sources:** - DC voltage source \( V_{CC} \) connected to the collector. - DC current source \( I \) at the emitter. - **Capacitors:** - \( C_S \) is used for AC coupling at the base. - \( C_E \) bypasses \( R_E \) for AC signals. - **Voltages:** - \( V_s \) represents the input signal. - \( V_o \) represents the output voltage. This analysis will help in understanding the DC operating point and small-signal parameters of the amplifier.
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