Learn about DC motors and their driving mechanisms in this comprehensive lecture. Explore various motor types, including brushed motors, and understand their steady-state operation and inductance. Examine example circuits and discover techniques for driving motors, such as using diodes and capacitors for noise suppression. Delve into transistor operations, including NPN and PNP transistors, and their applications in motor control. Investigate MOSFET types, characteristics, and their role in PWM driving. Analyze motor frequency response, MOSFET switching speed, and slew rates. Conclude with an introduction to H-Bridge basics in preparation for lab work.
Overview
Syllabus
Intro
Motor Types: Brushed
Steady-State Operation
Motor Inductance
Example Circuit
Driving a motor... easy!
Adding a Diode
Capacitor for Noise Suppression
A long use of braking...
NPN Transistor Operation
NPN Transistor Switch
Example: On/Off Control
PNP Transistor Switch
Quick Comparison
P-Channel as Switch
MOSFET Types
MOSFET Characteristics
PWM Driving 50% duty cycle
Motor Frequency Response
MOSFET Switching Speed
Fast Slew Rate
H-Bridge - Basics (for Lab)
Taught by
Colin O'Flynn
