DC Motor Control Group Activity
2-Hour Lesson: Research &
Presentation Task
Lesson Structure
• • 30–45 min research
• • 15 min presentation per group
• • Focus: DC motor control basics
Topic: DC Motor Control Basics
• • How DC motors work
• • Why speed control is needed
• • Applications and control methods
Group 1 Task: How DC Motors
Work
• Research and explain:
• • Basic working principle
• • Role of voltage and current
• • Key components (armature, commutator)
• Presentation must include:
• • Diagram
• • Simple explanation
• • Real-world example
Group 2 Task: Speed Control
• Research and explain:
• • Why speed control is needed
• • How voltage affects speed
• • Introduction to PWM (basic idea)
• Presentation must include:
• • Graph or diagram
• • Practical example (e.g., fan speed)
• • Advantages of control
Group 3 Task: Direction Control &
Applications
• Research and explain:
• • How direction is controlled
• • Basic idea of switching polarity
• • Applications of DC motors
• Presentation must include:
• • Diagram (H-bridge concept)
• • At least 3 applications
• • Explanation of why control is important
Presentation Requirements
• • 15 minutes per group
• • All members must contribute
• • Use clear slides and diagrams
• • Include at least one example
Assessment Criteria
• • Understanding of topic
• • Clarity of explanation
• • Use of visuals
• • Teamwork and participation