| 摘要 |
PURPOSE:To improve the working reliability through a phase switching with a signal having the number of phase equal to the motor which is detected deviated by one step in the angle. CONSTITUTION:When a working command signal is fed from an external control circuit 5, an AND-GATE circuit 5 opens. At the same time, a rotary direction indication signal is fed to a high power driver 9 from the circuit 5 through an EXCLUSIVE-OR-GATE circuit 6 to switch the excitation phase, thus actuating a step motor 3. With the rotation of the motor 3, a sensor receiver 11 generates a logic level signal. The circuit 6 receives the signal from the receiver 11 to actuate a timing signal generator 7 and switch the excitation phase. |
