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The chapter discusses the analysis of common collector and common drain amplifiers, focusing on their voltage gain, input resistance, output resistance, and input capacitance. It highlights the significant effects of connected resistors and provides insights into circuit behavior using small signal equivalent models. The chapter also compares the analysis for BJT and MOS transistors, emphasizing how various parameters influence circuit performance.
46.2.2
Current Flow And Kcl At The Emitter Node
This section discusses the application of Kirchhoff's Current Law (KCL) at the emitter node of a common collector amplifier, highlighting key relationships involving input and output currents and explaining various parameters such as voltage gain, input resistance, output resistance, and input capacitance.
References
Lecture 46.pdfClass Notes
Memorization
What we have learnt
Final Test
Revision Tests
Term: Common Collector Amplifier
Definition: A type of amplifier configuration where the collector is connected to a constant voltage source, providing high input impedance and low output impedance.
Term: Common Drain Amplifier
Definition: Similar to the common collector, it's a MOSFET configuration known for high input impedance and low output impedance, used primarily as a voltage buffer.
Term: Voltage Gain
Definition: The ratio of output voltage to input voltage, often approximated to be equal to one in common emitter and common drain circuits.
Term: Input Resistance
Definition: The resistance faced by the input signal, which influences how much of the signal is affected by the amplifier's characteristics.
Term: Output Resistance
Definition: The resistance seen from the output of the amplifier, affecting how it drives loads connected to it.