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Introduction
Course Promo
1.1 Course Intro
Fundamental Concept of How DC Motor Works
2.1: Parameters of Electrical & Mechanical System
2.2: Representation of Electric Motor as Block Diagram
2.3: Force produced by Permanent Magnet
2.4: How electric current produces force?
2.5: Current Carrying Conductors Placed in Magnetic Field
2.6: Requirement of Arrangement to Produce Unidirectional Torque
2.7: How to Supply Electric Current to Rotating Coil
2.8: Maintaining Direction of Current with Commutator
2.9: Conclusion
Basic Parts of DC Motor
3.1: Basic Parts of DC Motor
Back emf & it’s importance
4.1: Role of Faraday’s law and Lenz’s law in DC Motor (Back emf)
Mathematical Representation
5.1: Speed Torque Equation
5.2: Graphical Representation
Speed Control Methods
6.1: Effect of Supply Voltage
6.2: Effect of Adding Resistance to Armature Winding
6.3: Effect of Adding Resistance to Field Winding
Summary
7.1: Summary
DC Series Motor
8.1: DC Series Motor
8.2: Speed Torque Characteristics of DC Series Motor
More about DC Motor
9.1: Introduction
9.2: Controversy Effect: “Effect of Field Flux on Motor Torque”
9.3: Equation of Force
9.4: Shape and Equation of Back Emf
9.5: Average Value of Back Emf
9.6: Power Transfer
9.7: Shaft Torque
9.8: Applications & Limitations
9.9: Maximum Power Transfer Point
Demonstrations & Practice
10.1 Permanent Magnet DC Motors