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振荡器是《电子线路》这门课中模拟电路部分相对独立的内容。LC振荡器振荡条件的判别是本课程学习的重点,也是一个难点,学生解题时往往有无从下手的感觉。本文通过分析例题能够帮助学生用振荡的两个条件——振幅平衡和相位平衡条件去分析各种具体情况,并从电路的不同连接方式去分析相位平衡条件,从而在本质上分析理解振荡的产生条件,同时培养学生从电路原理上分析、理解、掌握电子线路的学习方法。
Oscillator is the “electronic circuit” this class analog circuit part of the relatively independent content. LC oscillator oscillation conditions discrimination is the focus of this course, but also a difficult point, students often have no way to start solving the feeling. In this paper, by analyzing the examples can help students to use the two conditions of oscillation - amplitude balance and phase equilibrium conditions to analyze a variety of specific circumstances, and from the circuit to connect the different ways to analyze the phase equilibrium conditions, in essence, to understand the oscillation Conditions, while students from the circuit theory to analyze, understand, master electronic circuit learning methods.