# Bode Plot

In electrical engineering and control theory, a Bode plot is a graph of the frequency response of a system. It is usually a combination of a Bode magnitude plot, expressing the magnitude (usually in decibels) of the frequency response, and a Bode phase plot, expressing the phase shift.

As originally conceived by Hendrik Wade Bode in the 1930s, the plot is an asymptotic approximation of the frequency response, using straight line segments.

from Bode Plot - Wikipedia

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## Control Systems in Practice, Part 10: Nichols Chart, Nyquist Plot, and Bode ...

18 min
Beginner
Video
Theory

Explore three popular methods to visualize the frequency response of a linear time-invariant (LTI) system: the Nichols chart, the Nyquist plot, and the Bode plot. Learn about each method...

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## What's a Control System and Why Should I Care? A whirlwind tour through the ...

60 min
Beginner
Article / Blog
Theory

This paper aims to provide some introduction, a cheat sheet, and some context for college level STEM students about to take that first controls class. In some cases, it provides context...

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## Control System Lectures - Bode Plots, Introduction

12 min
Beginner
Video
Theory

This lecture is an introduction to frequency response methods, and in particular describes the Bode plot. I go through how it is generated and why we use it to visualize the frequency...

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## Bode Plots by Hand: Real Constants

8 min
Beginner
Video
Theory

This video describes the benefit of being able to approximate a Bode plot by hand and explains what a Bode plot looks like for a simple transfer function; a real constant.

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## Introduction to Bode Plots

42 min
Beginner
Video
Theory

In this video we introduce the concept of Bode plots including what they represent, how they are generated, as well as how to use Matlab tools to work with B...

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## Bode Plots by Hand: Poles and Zeros at the Origin

8 min
Beginner
Video
Theory

This is a continuation of the Control Systems Lectures. This video describes the benefit of being able to approximate a Bode plot by hand and explains what a Bode plot looks like for a...

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## CORRECTION: Bode Plots by Hand: Complex Poles or Zeros

10 min
Beginner
Video
Theory

I explain how to determine the straight-line estimate of the Bode Plot for a second order transfer function with a pair of complex poles. This video is a repeat of the last half of the Bode...

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## Understanding and Sketching Individual Bode Plot Components

148 min
Beginner
Video
Theory

In this video we illustrate how 7 types of simple transfer functions contribute to a bode plot. We refer to these as ‘components’ and will cover the followi...

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## Bode Plots by Hand: Complex Poles or Zeros

11 min
Beginner
Video
Theory

This is a continuation of the Control Systems Lectures. This video describes the benefit of being able to approximate a Bode plot by hand and explains what a Bode plot looks like for a...

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## Bode Plots of Complex Transfer Functions

65 min
Beginner
Video
Theory

In this video we discuss how to generate a bode plot of a complex transfer function by decomposing it into the individual components. We then show how one c...

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## Bode Plot Drawing Tool

Intermediate
Article / Blog
Demonstration

This page demonstrates the techniques described previously to take a transfer function defined by the user, identify the constituent terms, draw the individual Bode plots, and then combine...

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## Control Bootcamp: Example Frequency Response (Bode Plot) for Spring-Mass-Da...

18 min
Beginner
Video
Theory

This video shows how to compute and interpret the Bode plot for a simple spring-mass-damper system.

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## Bode Plot Gain and Phase Margin Determination

5 min
Beginner
Video
Theory

I'll show you how we can determine the Gain and Phase Margin from a Bode Plot (at some fixed controller gain).

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## Bode Plots by Hand: Real Poles or Zeros

13 min
Beginner
Video
Theory

This is a continuation of the Control Systems Lectures. This video describes the benefit of being able to approximate a Bode plot by hand and explains what a Bode plot looks like for a...

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## Bode Stability Criterion in Frequency Response Analysis Intro

12 min
Beginner
Video
Theory

The Bode stability criterion allows us to quickly determine the stability and relative stability of a transfer function. It uses a graphical method that can ...

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## DC Gain

24 min
Beginner
Video
Theory

In this video we discuss the DC gain of a dynamic system.Topics and time stamps:(0:12) – Introduction to DC gain(7:04) – Derivation of DC gain(11:49) – Relat...

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