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所在平台: Udemy |
课程主页: https://www.udemy.com/course/understanding-rc-rasonant-circuits-and-passive-filters/
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课程名称：理解RC谐振电路与无源滤波器 课程概述：本课程探讨了串联谐振电路中的谐振及其效果，并讲解了谐振频率的计算方法。重点介绍了谐振时电抗Xc和Xl的特性，以及调谐的概念。同时，课程详细解说了谐振频率方程，串联谐振电路中的电流计算，以及谐振元件上的电压分布。课程还涵盖了RC低通滤波器和RL低通滤波器的截止频率(fc)和相位角的分析，以及RC高通滤波器和RL高通滤波器的相应内容。 本课程的核心内容包括： - 什么是电路的谐振？谐振是指电路或设备在施加交变信号时产生最大的响应，特别是当电感和电容的电抗平衡时。 - 谐振电路的品质因数Q，Q值是衡量谐振电路“好坏”的指标，Q值越高，带宽越窄，这在许多应用中是非常理想的。 - 谐振电路的应用，如在AM/FM收音机中选择所需的频道，以及阻止特定信号传播的功能。 本课程旨在帮助学生深入理解RC谐振电路与无源滤波器的工作原理及其在实际应用中的重要性。
Resonance & Resonance Effect in a Series Resonant circuit, calculation of the resonant frequency. The characteristic of Xc and Xl at Resonance. What is tuning. Al explains the resonance frequency equation for the correct solution. Calculation of current in a Series resonant Circuit. Voltage across resonant components. R C low pass & R L Low filters for Cut off frequency (fc) & phase Angle. Al explains R C High pass & R L High pass filters for Cut off frequency (fc) & phase Angle. What is Resonance of a Circuit ?the condition in which an electric circuit or device produces the largest possible response to an applied oscillating signal, especially when its inductive and its capacitive reactance's are balanced. What is Q of a Resonance Circuit.The Q, quality factor, of a resonant circuit is a measure of the "goodness" or quality of a resonant circuit. A higher value for this figure of merit corresponds to a more narrow bandwidth, which is desirable in many applications. More formally, Q is the ratio of power stored to power dissipated in the circuit reactance and resistance, respectively. Resonance Circuits are used in AM/FM radios to select the the desired station/channel. Resonance Circuits are also used to block or prevent a group or single signal from propagating.
