| 摘要 |
PURPOSE:To reduce in size and cost a linear motor and to delete the number of wirings by energizing an armature coil by a current switching circuit in response to a pattern from an energizing pattern generator to switch a coil current. CONSTITUTION:A linear DC motor has an armature coil 1 laid in a predetermined disposition on a stator 3 and a coil terminal wired to a coil terminal 10. A one-chip microcomputer is used to switch energization of the coil. An energizing pattern generator 13 for sequentially storing right and left shift energizing patterns according to an array in memory areas in the microcomputer is provided. An address of the generator is sequentially set by a moving magnetic field generator 12 of a program in a ROM according to a command from a control circuit 11 of a CPU of the microcomputer, the coil 1 is sequentially energized according to data corresponding to the addresses through a current switching circuit 14 made of MOS-FET, etc., and a movable element 4 is pressed to a stopper 8 of a left end. |
