Method for controlling pulley homing in optic disc machine
A technology of optical disc drives and pulleys, which is applied in optical recording/reproduction, recording of information on magnetic disks, instruments, etc., and can solve problems such as improving optical disc drives, increasing hardware components, production costs, and machine parts damage. To achieve the effect of improving the failure rate
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[0019] Refer to Figure 3, which is a schematic diagram of a stepping motor to illustrate the control method of the stepping motor 300. The stepping motor is used as the trolley motor as described above, which includes a rotor 310 and a phase A stator. 302, a phase B stator 304, a phase A'stator 306, and a phase B'stator 308, wherein the rotor 310 has a specific magnetic field, so the protruding end of the rotor in the figure will point to a rotor direction in the same direction as the applied magnetic field ; And individual stators can change individual magnetic field directions through external control signals, and synthesize an equivalent magnetic field direction to control the rotor direction. Refer to Figure 4 again, which is a timing diagram for explaining the control signal of the stepping motor to control the excitation frequency of the stepping motor. The control signal of each phase is switched between a high potential and a low potential. It is used to change the directi...
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