| 摘要 |
PURPOSE:To reduce the consumption power of a stepping motor by annularly connecting a coil, and connecting diodes in series with the coils in the same direction, thereby enabling to always drive the motor with the exciting current of one phase. CONSTITUTION:Coils La-Le are annularly connected in the state that diodes Da-De are respectively connected in series in a peripheral direction. Two respective switching transistors Qa, Q'a, Qb, Q'b, Qc, Q'c, Qd, Q'd, Qe, Q'e are connected as pairs to the connecting points. An exciting current is flowed from one connecting point, and flowed out to other connecting point. Two routes of the exciting current which are connected in parallel between the power sources are interrupted by the diodes Da-De. |
