59. Multi-Transistor Amplifiers (Contd.): Numerical Examples (Part B)
The chapter focuses on multi-transistor amplifiers, specifically discussing the common source amplifier and its cascading with the common drain stage to improve bandwidth and overall performance. Key numerical examples highlight calculations of voltage gain and upper cutoff frequency, emphasizing the use of transistor configurations to enhance amplifier characteristics. The importance of input resistance in circuit design is also addressed, illustrating how cascading stages can significantly affect performance metrics.
Enroll to start learning
You've not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- Cascading common source and common drain stages enhances bandwidth considerably.
- The voltage gain of the common source amplifier remains approximately the same when cascaded with a common drain amplifier.
- The input resistance can increase dramatically when stages are cascaded, benefiting overall amplifier performance.
Key Concepts
- -- Common Source Amplifier
- An amplifier configuration that provides voltage gain and is used in various electronic circuits.
- -- Common Drain Stage
- Also known as source follower, this configuration is used to buffer signals with high input resistance and low output resistance.
- -- Upper Cutoff Frequency
- The frequency at which the gain of the amplifier begins to decrease, affecting bandwidth.
- -- Cascading Stages
- Connecting multiple amplifier stages to enhance performance characteristics like gain and bandwidth.
Additional Learning Materials
Supplementary resources to enhance your learning experience.