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DC & AC analysis of BJT amplifier: CB configuration (Common Base) Video Lecture - Electrical Engineering (EE)

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FAQs on DC & AC analysis of BJT amplifier: CB configuration (Common Base) Video Lecture - Electrical Engineering (EE)

1. What is a BJT amplifier?

Ans. A BJT amplifier is a circuit that uses a Bipolar Junction Transistor (BJT) to amplify an input signal. It can be configured in three different ways: Common Base (CB), Common Emitter (CE), and Common Collector (CC).

2. What is the CB configuration (Common Base) of a BJT amplifier?

Ans. The Common Base (CB) configuration of a BJT amplifier is a configuration where the base terminal of the transistor is the input, the collector terminal is the output, and the emitter terminal is common to both the input and output. In this configuration, the input signal is applied to the base terminal, and the output is taken from the collector terminal.

3. What is DC analysis of a BJT amplifier in CB configuration?

Ans. DC analysis of a BJT amplifier in CB configuration involves studying the behavior of the amplifier when no input signal is present. It includes calculating the DC operating point, determining the biasing conditions, and analyzing the transistor's current and voltage characteristics in the absence of an input signal.

4. What is AC analysis of a BJT amplifier in CB configuration?

Ans. AC analysis of a BJT amplifier in CB configuration involves studying the behavior of the amplifier when an input signal is present. It includes calculating the voltage gain, input impedance, and output impedance of the amplifier. AC analysis also involves analyzing the small-signal model of the transistor to determine its response to the input signal.

5. What are the advantages of CB configuration in a BJT amplifier?

Ans. The CB configuration of a BJT amplifier offers the following advantages: - High voltage gain: The CB configuration provides a high voltage gain compared to other configurations, making it suitable for applications where voltage amplification is required. - Good input and output impedance matching: The input and output impedance of the CB configuration are well-matched, allowing for effective signal transfer between different stages of an amplifier. - Low noise figure: The CB configuration has a low noise figure, making it suitable for applications where low noise is desired, such as in radio receivers.

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	Nov 28, 2024 Last updated

DC & AC analysis of BJT amplifier: CB configuration (Common Base) for Electrical Engineering (EE)2024 is part of Electrical Engineering (EE) preparation. The notes and questions for DC & AC analysis of BJT amplifier: CB configuration (Common Base) have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about DC & AC analysis of BJT amplifier: CB configuration (Common Base) covers all important topics for Electrical Engineering (EE)2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for DC & AC analysis of BJT amplifier: CB configuration (Common Base).

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