| 摘要 |
PURPOSE:To prevent a pulse motor from causing loss of synchronism and to control proper conveyance of mobile members, by changing the impressed volt age of a pulse motor in starting-stopping and in rotating the motor at constant speed. CONSTITUTION:Transistors T1 and T2 are drivers for switching the impressed voltage, setting: voltage V1>voltage V2. Switching ON or OFF of these transistors are selected by voltage switching signals of a controller. In answer to the pulse signals sent out of pins 9-13 of the controller, a pulse motor driver Q3 outputs pulse motor exciting signals in accordance with the impressed volt age. When the pulse motor is rotating in constant speed, the transistor T1 is switched OFF and the transistor T2 switched ON, so that the voltage V2 is impressed to the pulse motor. In starting and in stopping the pulse motor, the transistor T1 is switched ON and the transistor T2 switched OFF, so that the voltage Vl is impressed to the pulse motor. |
