| 摘要 |
PURPOSE:To improve workability, and to prevent the damage of a member used by recovering the abnormal speed reduction of a motor by the increase of the rate of conduction of the motor. CONSTITUTION:A motor driver circuit 2 is controlled on a control signal (a) output from an output port A for a microcomputer 1, and a motor 3 is turned on a drive signal (b) output from the motor driver circuit 2. A movable member 4 is moved in the direction of the arrow, and contact pieces 5a-5c fixed to the member 4 are slid along a pattern substrate 6 and the positional signal (c) of the movable member 4 is generated. When the microcomputer 1 detects that thus positional change comes less than a prescribed movement, the rate of conduction to the motor 3 is increased by first fixed-time passage to elevate torque. |
