2004•Journal of Electrical & Electronic Engineering EducationRequires access
The Restudying on Closed-loop Characteritic of a Negative-feedback Amplifier
Yong Li
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Abstract
The calculation of one kind of gain, input and output resistance related to every kind of feedback configuration has been given concerning negative feedback amplifier, but it has not considered the calculation the source gain and other three kinds of gains related to every configuration, and it influences the guidance to practice. Taken the negative feedback amplifier in circuit of voltage connected in parallel for example, the relation of the four kinds of gain, source gain, input and output resistance has been given by the analytical method based on the paper 1, and it describes the relation between closed loop and open loop parameter adequately. The given relation possesses clear physical meaning, and it solves un answered problems in related papers.