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power amplifiers
The document discusses different types of feedback amplifiers. It defines feedback as a process where a fraction of the output energy is injected back to the input. Negative feedback decreases the gain and improves stability, while positive feedback increases gain but is less stable. The types of feedback amplifiers are classified based on the signals used in the feedback path and include voltage series, current series, current shunt and voltage shunt configurations. Key characteristics of each type are described along with advantages of negative feedback.
