Judge the Nature of Feedback of Amplifier by the Feedback Network
QU Zhi-hai · Journal of Wuhan Technical College · 2004
The negative feedback amplifier is widely used because of its perfect quality. However, the students often find it difficult to judge the nature of the feedback, especially in a complicated circuit. This paper presents a method to judge the nature of the feedback——feedback network method. This method, combined with the transient polarity method, is intuitional and has distinct logic, which diversifies the method of the judgement for feedback. It is flexible and convenient, making it easier to judge the nature of feedback.