| Title |
Microstep Drive of 2 Phase 8 Pole HB Type Linear Pulse Motor for Precise Position Control |
| Authors |
김성헌(Kim, Seong-Heon) ; 이은웅(Lee, Eun-Ung) ; 이동주(Lee, Dong-Ju) ; 구태만(Gu, Tae-Man) |
| Keywords |
Linear Pulse Motor ; Microstep Control ; Chopper Amplifier ; Static Thrust Force ; Harmonics ; Position Error |
| Abstract |
In this study, it has been aimed that the accuracy of position control be increased by microstep drive to the 2 phase 8 pole HB type prototype of linear pulse motor of which winding are applied sine wave current and the vibration and noise in the lower speed region be decreased. The fixed off-time method which controls the exciting current bandwidth, was applied to the microstep current controller. When the LPM was driven 1/8 microstep its accuracy of position was 0.109[mm] (=tooth pitch 3.5[mm] ). Also, the elimination method of harmonics in the static thrust force is proposed. It was confirmed that the position error range of the prototype LPM was pm0.2[mm]. |