December 2015
Beginner to intermediate
650 pages
18h 28m
English
book
Embedded Computing and Mechatronics with the PIC32 Microcontroller
by Kevin Lynch, Nicholas Marchuk, Matthew Elwin
Content preview from Embedded Computing and Mechatronics with the PIC32 Microcontroller
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Chapter 25
Brushed Permanent Magnet DC Motors
Abstract
This chapter introduces electromechanical modeling of brushed permanent magnet DC motors. Topics covered include the Lorentz force law, brushed commutation, motor equations, the speed-torque curve, and fundamental motor characteristics such as the torque constant, the motor constant, the electrical constant, the speed constant, the maximum continuous torque and current, the no-load speed and current, the stall torque and current, the electrical time constant, the mechanical time constant, and motor efficiency. The reader will learn how to read a motor’s data sheet and how to take an unknown brushed DC motor and perform experiments to determine most of the entries of its data sheet.
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