PIC18C452步进电机细分

A stepper motor, as its name suggests, moves one step
at a time, unlike those conventional motors, which spin
continuously. If we command a stepper motor to move
some specific number of steps, it rotates incrementally
that many number of steps and stops. Because of this
basic nature of a stepper motor, it is widely used in low
cost, open loop position control systems. Open loop
control means no feedback information about the posi-
tion is needed. This eliminates the need for expensive
sensing and feedback devices, such as optical encod-
ers. Motor position is known simply by keeping track of
the number of input step pulses.
M AN822
Stepper Motor Microstepping with PIC18C452

Authors: Padmaraja Yedamale STEPPER MOTOR BASICS
Sandip Chattopadhyay Now let’s take a closer look at a stepper motor. The first
Microchip Technology Inc. thing that we notice is that it has more than two wires
leading into it. In fact, various versions have four, five,
INTRODUCTION six, and sometimes more wires. Also, when we manu-