43. Limitation of CE and CS Amplifiers in Cascading - Part B
The chapter discusses the necessary features and configurations of buffers used in voltage mode and current mode amplifiers. It emphasizes the importance of optimizing output resistance, input resistance, and gain for effective signal propagation in cascaded amplifiers. Additionally, it covers the distinctions between configurations like common collector, common drain, common base, and common gate to achieve desired amplification characteristics.
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What we have learnt
- Output resistance of a voltage mode buffer should be low.
- Input resistance of a voltage mode buffer should be high.
- For current mode amplification, the output resistance should be high and input resistance low.
Key Concepts
- -- Voltage Mode Buffer
- A buffer that optimizes the output resistance low and input resistance high for effective voltage amplification.
- -- Current Mode Buffer
- A buffer that requires high output resistance and low input resistance, often implemented using common base or common gate configurations.
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