90. Feedback system (Part-A)
The chapter discusses the fundamental concepts of analog electronics, focusing on signal types, specifically voltage and current. It outlines the importance of matching signal characteristics in various configurations and provides examples of signal conversions in different blocks, such as transconductance and transimpedance. A critical aspect emphasized is ensuring the consistency of signal types across components for effective mixing and amplification.
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What we have learnt
- Electronics signals can either be voltage or current, impacting their configuration and processing.
- Matching signal types in amplification and mixing blocks is crucial for accurate signal processing.
- Different configurations exist based on signal types, necessitating an understanding of transconductance and transimpedance.
Key Concepts
- -- Voltage Gain
- The amplification of a voltage signal provided by an amplifier in a given configuration.
- -- Current Signal
- A type of electrical signal represented by the flow of electric charge, distinct from voltage signals.
- -- Transconductance
- The property of an electronic device that converts voltage changes to current changes.
- -- Transimpedance
- An amplifier configuration that converts current into voltage.
- -- Mixer
- A component that combines different signals, which requires consistent signal types for effective processing.
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