Description: 1. Stepper motor, three-wire, five-wire or six-wire three, but its control are the same, must be based on pulse current to drive
Action. If every revolution of the order of 20 to calculate the excitation signals, each excitation signal forward 18 degrees, the rotation angle and number of pulses into
Proportional, positive and reverse pulse sequence can be controlled.
2. Stepper motors can be divided into all the exciting half-step excitation and excitation, which have a phase excitation full step 2 phase excitation and the excitation
Magnetism of the points, while the half-step excitation, also known as 1-2 phase excitation. The picture shows the equivalent circuit of stepper motor control, adaptive control A, B,/A,
/ B of the excitation signal, you can control the stepper motor rotation. Each output of a pulse signal, the stepper motor only step. Because
This pulse sequence sent continuously, you can continuously rotate stepper motor.
a.1-phase excitation method: at each moment
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bjdj.asm
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