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29. Find Rin(emitter)» Ay, A¡, and A, for the unloaded amplifier in Figure 6–57. IGURE 6-57 C3 Bac = 200 OV out 10 μF RE 620 N 10 μF RC 1.2 kN R2 R1 Vcc +24 V 10 k. 22 kN 10 uF

29. Find Rin(emitter)» Ay, A¡, and A, for the unloaded amplifier in Figure 6–57. IGURE 6-57 C3 Bac = 200 OV out 10 μF RE 620 N 10 μF RC 1.2 kN R2 R1 Vcc +24 V 10 k. 22 kN 10 uF

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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### Problem Statement **29.** Find \( R_{in(emitter)} \), \( A_v \), \( A_i \), and \( A_p \) for the unloaded amplifier in Figure 6-57. --- ### Figure 6-57 Explanation The schematic in Figure 6-57 illustrates an unloaded amplifier configuration with the following components: - **Transistor**: Represented by the standard symbol with a current gain (\( \beta_{ac} \)) of 200. - **Input Capacitor \( C_1 \)**: 10 µF, connected at the input \( V_{in} \). - **Emitter Resistor \( R_E \)**: 620 Ω, linked to the transistor's emitter. - **Resistors \( R_2 \) and \( R_1 \)**: 10 kΩ and 22 kΩ respectively, forming part of the biasing network. - **Output Capacitor \( C_3 \)**: 10 µF, connected at the output \( V_{out} \). - **Collector Resistor \( R_C \)**: 1.2 kΩ, situated on the collector side of the transistor. - **Power Supply \( V_{CC} \)**: +24 V, supplies the necessary voltage to the circuit. - **Capacitor \( C_2 \)**: 10 µF, used for coupling or bypassing purposes. ### Circuit Functionality This is a typical common-emitter amplifier circuit which amplifies the input voltage \( V_{in} \) to provide an amplified output voltage \( V_{out} \). The capacitors \( C_1 \), \( C_2 \), and \( C_3 \) are typically used to block DC components while allowing AC signals to pass. ### Parameters to Calculate 1. **\( R_{in(emitter)} \)**: The input resistance seen at the emitter. 2. **\( A_v \) (Voltage Gain)**: The ratio of the output voltage variation to the input voltage variation. 3. **\( A_i \) (Current Gain)**: The ratio of the output current to the input current. 4. **\( A_p \) (Power Gain)**: The product of the voltage gain and the current gain, representing the conversion of input power to output power.
Transcribed Image Text:### Problem Statement **29.** Find \( R_{in(emitter)} \), \( A_v \), \( A_i \), and \( A_p \) for the unloaded amplifier in Figure 6-57. --- ### Figure 6-57 Explanation The schematic in Figure 6-57 illustrates an unloaded amplifier configuration with the following components: - **Transistor**: Represented by the standard symbol with a current gain (\( \beta_{ac} \)) of 200. - **Input Capacitor \( C_1 \)**: 10 µF, connected at the input \( V_{in} \). - **Emitter Resistor \( R_E \)**: 620 Ω, linked to the transistor's emitter. - **Resistors \( R_2 \) and \( R_1 \)**: 10 kΩ and 22 kΩ respectively, forming part of the biasing network. - **Output Capacitor \( C_3 \)**: 10 µF, connected at the output \( V_{out} \). - **Collector Resistor \( R_C \)**: 1.2 kΩ, situated on the collector side of the transistor. - **Power Supply \( V_{CC} \)**: +24 V, supplies the necessary voltage to the circuit. - **Capacitor \( C_2 \)**: 10 µF, used for coupling or bypassing purposes. ### Circuit Functionality This is a typical common-emitter amplifier circuit which amplifies the input voltage \( V_{in} \) to provide an amplified output voltage \( V_{out} \). The capacitors \( C_1 \), \( C_2 \), and \( C_3 \) are typically used to block DC components while allowing AC signals to pass. ### Parameters to Calculate 1. **\( R_{in(emitter)} \)**: The input resistance seen at the emitter. 2. **\( A_v \) (Voltage Gain)**: The ratio of the output voltage variation to the input voltage variation. 3. **\( A_i \) (Current Gain)**: The ratio of the output current to the input current. 4. **\( A_p \) (Power Gain)**: The product of the voltage gain and the current gain, representing the conversion of input power to output power.
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