DC Motor

DC Motor

Understand “How DC Motor works?” in most simplified way. Course is designed to help students in understanding fundamental concept and mathematical derivation. Content delivered here ensures learning new prospective for students of schools & colleges. “Easy to understand” and “Every bit to understand” are two basic blocks of this course.

Contents:

Section 1: Introduction

1 Course Introduction

Section 1: Fundamental Concept of How DC Motor Works

2 Parameters of Electrical & Mechanical System

3 Representation of Electric Motor as Block Diagram

4 Force produced by Permanent Magnet

5 How electric current produces force?

6 Current Carrying Conductors Placed in Magnetic Field

7 Requirement of Arrangement to Produce Unidirectional Torque

8 How to Supply Electric Current to Rotating Coil

9 How Commutator Maintains Direction of Current

10 Conclusion

Section 2: Basic Parts of DC Motor

11 Basic Parts of DC Motor

Section 3: Role of Faraday’s law and Lenz’s law in DC Motor (Back emf).

12 Role of Faraday’s law and Lenz’s law in DC Motor (Back emf).

Section 4: Mathematical Representation of DC Motor

13 Speed Torque Equation

14 Graphical Representation

Section 5: Speed Control Methods

15 Effect of Supply Voltage

16 Effect of Adding External Resistance to Armature Winding

17 Effect of Adding External Resistance to Field Winding

Section 6: Summary

18 Summary

Section 7: More About DC Motor

19 Introduction

20 Controversy Effect: “Effect of Field Flux on Motor Torque”

21 Equation of Force

22 Shape and Equation of Back Emf

23 Average Value of Back Emf

24 Power Transfer

25 DC Series Motor

26 Speed Torque Characteristic s of DC Series Motor

27 Shaft Torque

28 Applications & Limitations

Section 8: Demonstrations

29 Demonstration of PMDC Motor

More contents will be added in future as per requirement and/or request. This course is to provide answer of all questions and queries related to DC Motor.

Fundamental Concept, Mathematical Representation & Speed Control

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What you will learn

• Will have answer of “Why Motor Starts Rotating When Supply by Voltage Source?”.
• Will understand Role of Back-emf in Energy Conversion Process.
• Will understand “How to derive equations of motor speed?”.

Rating: 3.6

Level: Beginner Level

Duration: 2 hours

Instructor: Dr. Jignesh Makwana