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How do I find the voltage gain of this Common Base circuit with two transistors? There is no early voltage.

How do I find the voltage gain of this Common Base circuit with two transistors? There is no early voltage.

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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How do I find the voltage gain of this Common Base circuit with two transistors? There is no early voltage.
The image displays a circuit diagram featuring two transistors, labeled Q1 and Q2. It is likely a part of a common-emitter amplifier or a similar configuration. Here is a detailed explanation: 1. **Transistors (Q1 and Q2):** - Q1 is positioned in the upper part of the circuit, configured to control the output voltage (\(V_{out}\)). - Q2 is grounded and likely acts as an active load or current source, providing biasing to Q1. 2. **Connections and Labels:** - **\(V_{in}\):** This is the input voltage applied to the base of Q1. - **\(V_{out}\):** The output voltage taken from the collector of Q1. - **\(V_{b}\):** A biasing voltage applied to the base of Q1 to control its operation. - **\(V_{CC}\):** The supply voltage connected to the collector of Q1, providing the necessary power for the circuit operation. 3. **Ground Symbol:** - Positioned near Q2, indicating a connection to the circuit’s ground reference point. This diagram is labeled as part "(b)", possibly indicating it is one of several configurations or examples in a series related to transistor circuits.
Transcribed Image Text:The image displays a circuit diagram featuring two transistors, labeled Q1 and Q2. It is likely a part of a common-emitter amplifier or a similar configuration. Here is a detailed explanation: 1. **Transistors (Q1 and Q2):** - Q1 is positioned in the upper part of the circuit, configured to control the output voltage (\(V_{out}\)). - Q2 is grounded and likely acts as an active load or current source, providing biasing to Q1. 2. **Connections and Labels:** - **\(V_{in}\):** This is the input voltage applied to the base of Q1. - **\(V_{out}\):** The output voltage taken from the collector of Q1. - **\(V_{b}\):** A biasing voltage applied to the base of Q1 to control its operation. - **\(V_{CC}\):** The supply voltage connected to the collector of Q1, providing the necessary power for the circuit operation. 3. **Ground Symbol:** - Positioned near Q2, indicating a connection to the circuit’s ground reference point. This diagram is labeled as part "(b)", possibly indicating it is one of several configurations or examples in a series related to transistor circuits.
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