Lesson 15 Two Phase Driver of Step Motor
One phase driver
In lesson 6 we drive the step motor with one phase driver. One coil is
driven one time.
|
|
A coil |
B coil |
C coil |
D coil |
|
1 |
ON |
|
|
|
|
2 |
|
ON |
|
|
|
3 |
|
|
ON |
|
|
4 |
|
|
|
ON |
Two phase driver
We will drive the step motor with two phase driver, Each time two coils
are driven simultaneously. The torque force is greater then one phase driven.
|
|
A coil |
B coil |
C coil |
D coil |
|
1 |
ON |
ON |
|
|
|
2 |
|
ON |
ON |
|
|
3 |
|
|
ON |
ON |
|
4 |
ON |
|
|
ON |
Experiment 1
2 LEDs will shine simultaneously each time of every pulse.
OR gate use 4071
Experiment 2
It is possible to complete the circuit
on a little bread board.
Try to hold the axis of step motor and
feel that the torque is greater than one phase driver.
