Fundamentals of DC-DC Converters

A 3 month course which introduces the learner to everything they need to know about DC-DC Converters and how to model them using MATLAB and Simulink

  • Domain : ELECTRICAL
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A Quick Overview

DC-DC converters are one of the main classifications of Power Electronic Converters. DC-DC converters find its application ranging from low power to high power range. It is an essential part of electric vehicles and hence it is necessary for both Electrical and Mechanical Engineers to have a good understanding on the topic.

In this course, students learn about the analysis, modeling, and design of non isolated DC-DC converters. This will allow the students to design the DC-DC converter for an application. They will also undergo hands-on simulation using MATLAB/Simulink. This course covers the basics of transfer function, Bode plot and how to obtain the Bode plot of any converter. This course also enumerates the applications of the non isolated converters in various fields which will help the learners to design the converter for a particular application.  This course will also discuss applications and design methodologies of rectifier circuits. The details of rectifier circuits covered in this course will be helpful to tackle the challenges in power electronic industries. 

This course is specifically designed for: 

  1. Engineering students doing bachelor and master degree who wish to expand their knowledge in DC-DC converters
  2. Ph.D scholars who wish to do their research in the field of  DC-DC converter
  3. Industrial persons and faculty members who would like to learn more in DC-DC converter
  4. Anyone who is interested to work in trending technology like Electrical vehicle, Smart Grid, Micro Grid, etc.
  5. Any graduate who seek job in any electrical company

The following skills are required to learn the course

  1. Basics of electric circuits
  2. Kirchhoff's voltage and current law
  3. Knowledge about switching devices
  4. Basic knowledge about the capacitor and inductor
  5. Fundamental knowledge about Laplace Transform

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COURSE SYLLABUS

1DC-DC Buck Converter

In this week, you will learn about the principle, modes, and analysis of DC-DC Buck Converter

  • Introduction, modes, equations
  • Average output voltage, ripple current and voltage
  • Modeling and Design 
  • Condition for continuous conduction, Applications
  • Simulation

2DC-DC Boost Converter

In this week, you will learn about the principle, modes, analysis of DC-DC Boost Converter

  • Introduction, modes, equations
  • Average output voltage, ripple current and voltage
  • Modeling and Design 
  • Condition for continuous conduction, Applications
  • Simulation

3DC-DC Buck-Boost Converter

In this week, you will learn about the principle, modes, analysis of DC-DC Buck-Boost Converter

  • Introduction, modes, equations
  • Average output voltage, ripple current and voltage
  • Modeling and Design 
  • Condition for continuous conduction, Applications
  • Simulation 

4DC-DC Cuk Converter

In this week, you will learn about the principle, modes, analysis of DC-DC Cuk Converter

  • Introduction, modes, equations
  • Average output voltage, ripple current and voltage
  • Modeling and Design 
  • Condition for continuous conduction, Applications
  • Simulation

5Interleaved operation and other non isolated converter

In this week, you will learn about interleaved operation and other non isolated converter

  • Interleaved DC-DC Converter
  • SEPIC Converter
  • Zeta Converter
  • Luo Converter
  • Applications

6Bode Plot Fundamentals

In this week, you will learn about Bode Plot and its fundamentals

  • Transfer function of electrical circuit
  • Introduction to Bode plot
  • Procedure to draw Bode plot
  • Simple example
  • Demo with Matlab

7Buck Converter Design and Modeling

  • Power supplies for telecommunications applications may require high currents at low voltages
  • Design a buck converter that has an input voltage of 3.3 V and an output voltage of 1.2 Vt
  • Specify the inductor value such that the peak-to-peak variation in inductor current does not exceed 40 percent of the average value
  • Assume the switching frequency=500kHz.

8Boost Converter Design and Modeling

  • Design a boost converter for DC drive with input voltage =250 V, input current = 200 A, output voltage= 400 V, switching frequency=50kHz
  • Calculate the ripple voltage and ripple current
  • Obtain the average state space model of the designed converter
  • Check for controllability and observability.

9Buck-Boost Converter Design and Modeling

  • Design a buck-boost converter for a PV system with input voltage =24 V, output voltage magnitude is 16 V, switching frequency=100kHz
  • Calculate the ripple voltage and ripple current
  • Obtain the average state space model of the designed converter
  • Check for controllability and observability.

10Cuk Converter Design and Modeling

  • A Cuk converter has an input of 12 V and is to have an output voltage magnitude of 18 V supplying a 40-W load
  • Selection of the duty ratio, the switching frequency, and the inductor sizes are such that the change in inductor currents should not be more than 10 percent of the average inductor current, the output ripple voltage should not be more than 1 percent, and the ripple voltage across C1 is no more than 5 percent.

11Interleaved operation and other non isolated converter

  • Design a Luo converter for fuel cell with input voltage =250 V, input current = 200 A, output voltage= 400 V, switching frequency=50kHz
  • Calculate the ripple voltage and ripple current
  • Obtain the average state space model of the designed converter
  • Check for controllability and observability.

12Bode Plot Fundamentals

  • Obtain the transfer function of Buck converter using the state space model and hence obtain its Bode plot for Vs=12 V, Vo=5V, L=100mH, C=200µF, R=5Ω
  • Obtain the gain margin and phase margin, and hence find its stability.


Projects Overview

Design a SEPIC Converter

Highlights

  • Design a DC-DC SEPIC converter with input voltage = 10 V, output voltage = 0-20V
  • Take  f = 50 kHz, ΔI1=ΔI2 =0.2 A, , Δv1=Δv2 =0.2V.
  • Find the state space model of the converter
  • Construct the converter in MATLAB and simulate 
  • Obtain the waveforms for input and output voltage, inductor current and capacitor voltage
  • Repeat the above for Cuk converter
  • Compare the results

Design of MPPT Controller

Highlights

  • Design a MPPT controller with Boost to meet the following specifications and obtain the simulation results.
  • PV output voltage/ Input voltage of converter=250-350V
  • Output voltage= 600V
  • Rated PV power =100kW
  • Switching frequency=5kHz
  • Current ripple=5%
  • Voltage ripple=1%
  • Repeat the above using a two stage Interleaved Boost converter and compare the results in MATLAB.

WHO IS THIS COURSE FOR ?


  • Engineering students doing bachelor and master degree who wish to expand their knowledge in DC-DC converter
  • Ph.D scholars who wish to do their research in the field of DC-DC converter
  • Industrial persons and faculty members who would like to learn more in DC-DC converter
  • Anyone who is interested to work in trending technology like Electrical vehicle, Smart Grid, Micro Grid, etc.
  • Any graduate who seek job in any electrical company

SOFTWARE COVERED

MATLAB

  • This course includes hands-on sessions with MATLAB software. MATLAB is predominantly used in the industry for analysis of power electronic circuits. Millions of Engineers and researchers are using MATLAB for various applications.
  • MATLAB is nothing but a Matrix Laboratory that uses a matrix based language. Simulink is a graphical programming environment, which can be used for simulating the circuits, with the help of inbuilt models/blocks. Very easy to construct and simulate the circuits, machines, control system and DSP models, PV and Wind, etc in Simulink.
  • Simulink environment is very user friendly for Power Electronic circuits. It is very easy to perform the design and modeling of the converters. The converters can be easily controlled in a closed loop as the tuning of the controller is readily done in the MATLAB. 
  • With MATLAB we can convert our ideas and design to models which will let us to fabricate in real time products. It helps us to work in the way we think. 


Frequently Asked Questions

1Who can take your course?

  • Engineering students doing bachelor and master degree who wish to expand their knowledge in DC-DC converter
  • PhD scholars who wish to do their research in the field of  DC-DC converter
  • Industrial persons and faculty members who would like to develop capabilities in DC-DC converter
  • Individuals seeking career in domains of Electrical vehicle, Power Supply designs, Smart Grid, Micro Grid, etc.
  • Graduate who seek job in electrical domain

2What is included in your course?

  • This course includes all DC-DC converter, analysis, modeling and design, hands on simulation.
  • It also covers basics of transfer function, Bode plot, demo of how to obtain Bode plot of any converter
  • It includes hands on demo of DC-DC converter using MATLAB software
  • It includes exercises to test the knowledge learnt from this course
  • It also includes 2 projects which enable the learners to apply the concepts learnt and find out a solution to the problem statement. 

 

3What will the student gain from your course?

  • The students will gain depth knowledge of DC- DC Converters, they will learn to analyze the converter and design the converter for a particular application. They will have hands on experience to simulate the converter circuit in Matlab Simulink. They will learn to get the state space model of the converters learnt. 
  • They will understand the clear concepts of the converters which will help them to find its suitability for the practical application. The knowledge gained will help them think and come out with an innovation that can be used to solve some practical problems of industries 

4What software skills are you teaching and how well are these tools used in the industry?

  • MATLAB-Simulink is a widely used software for design and modeling of Power Electronics converters.  It is very user friendly and includes many built in modules and tools which help in many applications.
  • This is the most widely used tool in the industry to verify the designed circuits before implementing them in hardware. Power supply design industries, energy sectors, electric vehicle industries, research institutes use this software. 

5What is the real world application for the tools and techniques will you teach in this course?

Real world applications such as mobile and laptop battery chargers, Switched Mode Power Supplies, charge controller, battery management system, DC drives, fuel cell and wind energy systems, electric vehicles,  and many more uses DC-DC converter that can be designed and simulated in MATLAB. 

 

6Which companies use these techniques and for what?

Almost all the core companies use this technique for design. Some of the companies that use these techniques are Power supply design industries, Energy sectors, electric vehicle industries, research institutes. To explain in detail, the converter modeling and design, state space representation of the converters will help the companies to develop the power supply modules, charge controllers.

 

7How is your course going to help me in my path to MS or PhD?

  • This course will surely help to pursue MS or PhD, as the topics covered in this course are essential for doing research in emerging technologies like smart grid, electric vehicles, renewable energy technologies like solar and wind power. 
  • It is an advanced course with industrial synergy and also includes content that are taught in top notch universities in the world
  • The techniques and tools covered in this course will help the MS and PhD scholars to get deep knowledge of DC-DC converters. The exercises and projects of this course enable them to get practical exposure with which they can do their research in an easier manner.

8How is this course going to help me get a job?

This course helps the learner to acquire wide knowledge about DC-DC converter. Since hands on training is given to the learners, they will get more confidence about this field so that they can face the interview when compared to other candidates. As many of the companies, especially core companies like, automobile, power energy sectors, power supply design companies rely on the DC-DC converters, this course will really help the learners to get the job.


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Basic

2 Months Access

3500

Per month for 3 months

  • Access Duration : 2 Months
  • Mode of Delivery : Online
  • Project Portfolio : Available
  • Certification : Available
  • Email Support : Available
  • Forum Support : Available
Premium

Lifetime Access

7500

Per month for 3 months

  • Access Duration : Lifetime
  • Mode of Delivery : Online
  • Project Portfolio : Available
  • Certification : Available
  • Individual Video Support : 12/ Month
  • Group Video Support : 12/ Month
  • Email Support : Available
  • Forum Support : Available
  • Telephone Support : Available
  • Dedicated Support Engineer : Available

Certification

  • Top 5% of the class will get a merit certificate
  • Course completion certificates will be provided to all students
  • Build a professional portfolio
  • Automatically link your technical projects
  • E-verified profile that can be shared on LinkedIn

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