独立源和受控源的异同点

“电路基础”对于高等学校电类专业学生来说，是一门重要的学科基础课，其中受控源是基础知识部分的一个难点，本文从受控源和独立源的定义出发，结合思维导图，在是否为激励源、端口情况、等效电路和在叠加定理的应用四个方面深入分析了受控源和独立源的不同之处，从“源”的角度阐述受控源和独立源的相同点，同时分别给出了四种受控源的原型电路实例，分析了受控源供出能量的来源，旨在为学习者深刻理解受控源提供帮助。

Differences and Similarities between Independent and Controlled Sources

Fundamentals of electric Circuit is an important basic course for the students of electrical specialty in colleges and universities, in which the controlled source is a difficult knowledge point. Based on the definitions of the independent and the controlled sources, combined with a mind map, this paper analyzes the differences between them in four aspects, including the excitation, the port condition, the equivalent circuit and the application in superposition theorem. From the perspective of the source, the similarities between two kinds of sources are described. At the same time, the prototype circuits of four controlled sources are given respectively, and the sources of energy supplied by the controlled sources are analyzed. This paper aims to provide a profound understanding of the controlled power supply for the learners.