| 摘要 |
PURPOSE:To prevent rotational fluctuation of a motor by setting the number of address, from a time when phase A current has a peak and phase B current is zero to a time when phase A and B current are same, differently from the number of address, from a time when phase A and B currents are same to a time when phase A current is zero and phase B current has a peak. CONSTITUTION:Single period phase of a step-motor is divided into 64 sections constituting a single step, and the ratio between phase A and B currents is obtained experimentally for each step thus preparing a data table. The number lof address from a time when phase A current has a peak and phase B current is zero to a time when phase A and B currents are same and the number (m) of address from a time when phase A and B currents are zero to a time when phase A current is zero and phase B current has a peak are set such that l>m. Consequently, angular movement alpha of motor from the address at the time of peak phase A current to an intermediate address C is equalized to the angular movement beta from address C to the address at peak phase B current. |
