降壓式轉換器穩定度分析 Stability of Buck Converter

Name: 降壓式轉換器穩定度分析 Stability of Buck Converter
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電源補償器原理與設計 Power Convertor Compensation Principle and Design

Created byAllen Xu

Last updated 8/2024

Chinese (Traditional)

English

What you'll learn

對電源補償(穩定度)的原理與分析有基本的概念。To learn the basic concepts of the principle and analysis of compensation (stability).
了解電壓模式與電流模式控制的架構。To understand the architecture of voltage mode and current mode control.
了解直流電壓轉換器之轉移函數在頻域/時域的數學推導。Understanding the mathematical derivation of the transfer function of a DC voltage converter in the frequency and time domain.
了解電壓模式補償器的設計原理與其應用。Understanding the voltage mode compenssator design principles and its applications.

Course content

9 sections • 27 lectures • 1h 20m total length

課程綱要說明The Introduction of the Course Outline2:42
本堂課程內容基本介紹與各章簡要說明
An overview of the course and a brief introduction of the 7 chapters that learners are going to learn in the course.

電壓模式控制的方塊圖VMC block diagram0:35
針對電壓模式控制的閉迴路進行解釋分析
Provide an explanation and analysis of the closed-loop voltage-mode control schematic.
專有名詞的介紹Introcution of Terminology0:25
介紹三個電壓模式控制系統中的重要參數
Introduction of three important parameters in the voltage-mode control system.
定義的介紹Introduction of Technique1:17
解釋單位增益的定義
Explaining the unit gain.
小訊號脈波寬度調變增益 Small Signal PWM gain (FM)1:06
說明責任週期的控制方式
Explanation of duty cycle control.
電壓模式控制的優缺點Advantages and Drawback of VMC0:59
幫助了解電壓模式控制的主要優缺點
Helping learners to understand the main advantages and disadvantages of the voltage-mode control.

小訊號方塊圖Small Signal Block Diagram4:56
解釋電流模式的控制原理
Explaining the theory of the current mode control.
電壓模式控制與電流模式控制波德圖的比較 VMC/CMC Bode Plot Comparsion1:40
比較兩種控制模式的差異
Compare the differences between two control modes: voltage mode control (VMC) and current mode control (CMC).
電感漣波電流與輸入電壓的關係 Relationship between Ripple Current and Input Voltage1:21
說明電感電流斜率與輸入電壓變化之間的關係
Explain the relationship between the slope of the pole current and the variation in input voltage.
電流模式控制的電流限制Current Limit of the Current Mode Control (CMC)0:50
解釋電流模式控制上的保護作用
Explain the protective function in the current-mode control.
峰值電流控制 Peak Current Control4:19
解釋電流模式控制當中常用的控制方式一
Explain the 1st commonly used control method in the current-mode control.
平均電流控制 Average Current Control0:46
解釋電流模式控制當中常用的控制方式二
Explain the 2nd commonly used control method in the current-mode control.
磁滯電流控制 Hysteresis Current Control2:08
解釋電流模式控制當中常用的控制方式三
Explain the 3rd commonly used control method in the current-mode control.
電流模式控制的優缺點Advantage and Drawback of CMC1:09
幫助了解電流模式控制的主要優缺點
Helping learners to understand the main advantages and disadvantages of the current-mode control.

增益與相位餘量的定義Gain and Phase Margin Definition1:13
本章主要講述閉迴路控制對雜訊的靈敏度與穩定度的定義
The main content of this chapter is about the definition of the closed-loop control's sensitivity to noise and stability.
相位餘量的物理意義Physical Property of Phase Margin3:46
說明向位餘量的選擇對閉路控制的影響
Explain the impact of selecting the phase margin in the closed-loop control.

轉移函數的推導 Transfer Function Derivation1:38
說明電力電路在頻域分析中零極點的分部
Explain the distribution of zeros and poles in the frequency domain analysis of power circuits.
波德圖的分析Bode Plot Analysis3:32
從零極點的分佈推導出電力電路實際的波德圖曲線
Derive the actual bode plot curve of a power circuit from the distribution of zeros and poles.
共振頻率與品質因素Resonnance Frequency and Quality Factors15:17
解釋增益與向位在輕載與重載時各自波德曲線的變化
Explain the variations of gain and phase shift in bode plots with light load and heavy load.

第一型補償器Type I compensator1:49
介紹第一型補償器的原理與設計
Introducing the principle and design of the Type I compensator.
第二型補償器Type II compensator5:37
介紹第二型補償器的原理與設計
Introducing the principle and design of the Type II compensator.
第三型補償器Type III comopensator6:46
介紹第三型補償器的原理與設計
Introducing the principle and design of the Type III compensator.

設計條件 Design Conditions0:38
針對第三型補償器的實際案例進行設計與分析
Design and analyze a real case for the Type III compensators.
波德圖模擬分析 Bode Plot Simulation4:17
針對範例所模擬出的波德圖進行解釋與分析
Explain and Analyze the bold plot from the example
閉迴路模擬分析Close Loop Simulation7:47
利用Spice對範例之閉迴路進行模擬與分析
Use Spice to simulate and analyze the close loop from the example.

Requirements

有基本電力電子或電路學基礎。To learners who have a foundation knowledge in power electronics or circuit theory.

Description

本課程為基本降壓式轉換器補償原理的介紹，適合具備基本電力電子或電路學基礎之學員。本門課將幫助您對電源補償(穩定度)的原理與分析有基本的概念，並且了解電壓模式與電流模式控制的架構，課程中也將對直流電壓轉換器之轉移函數在頻域/時域的數學推導進行說明；透過本堂課，您也將能對電壓模式補償器的設計原理與其應用有更進一步的認識。歡迎對電源補償有興趣、有志從事電源相關行業，或從事硬件專業並希望提升電源補償基礎知識者選讀。

Who this course is for:

對電源補償有興趣、有志從事電源相關行業，或從事硬件專業並希望提升電源補償基礎知識者。To those who are interested in studying the knowledge of power supply compensation, aspiring to work in the power supply industry, or involved in hardware-related professions and seeking to enhance foundational knowledge in power supply compensation.

降壓式轉換器穩定度分析 Stability of Buck Converter

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Course content

引言&課程綱要The Introdcution & Outline1 lecture • 3min

基礎控制原理Fundamental Control Theory1 lecture • 3min

電壓模式控制Voltage Mode Control5 lectures • 4min

電流模式控制Current Mode Control8 lectures • 17min

穩定度的定義Definition of Stability2 lectures • 5min

降壓式轉換器在頻域上的分析S-Domain Analysis of Buck Converter3 lectures • 20min

補償器型式與其參數的選擇Types of Compensators3 lectures • 14min

第三型補償的設計案例Design Examples for Type III Compensator3 lectures • 13min

結語與附錄 The Conclusion & Appendix1 lecture • 1min

Requirements

Description

Who this course is for: