Animated
Content
DC Motors
Overview
• Magnetism / Electromagnetism
• Stepper Motor
• Right Hand Rules
• Simple DC Motor
• Brushes / Commutator
• Pulse Width Modulation (PWM)
• Servo Motor
• AC Synchronous Motors
Magnetism
Opposites Attract / Likes Repel
Magnetic Fields
Direction of Field: North South
Right Hand Rule # 1
Electric Currents Magnetism!
Right Hand Rule # 1
Electric Currents Magnetism!
Electromagnetism
Electromagnet
North/South
Pole?
Stepper Motor
Stepper Motor
Simple DC Motor
F
o
r
c
e
Right Hand Rule # 2
Electric Currents & Magnetism Force
Force in a Conductor
Force in a Conductor
Diagram of a Simple DC Motor
Electric Motor
Commutator
Motors
• DC: Brushed, Brushless, Permanent, etc
• AC: Induction, Synchronous, etc
• Stepper
• Servo
• Universal
