Design and Application Research of PWM Micro stepping Driver of Hybrid Step Motor in Conputer Embroidery Machine
A kind of micro setpping driver that satisfies the request of running smoothly and orientating accurately at low speed in control system of computer embroidery machine is introduced in this paper.The micro stepping driver bases on PIC16F914 single chip,accords with principle of compositive victor of current evenly rotating with constant amplitude,adopts PWM technique and strategy of closed loop control of the instantaneous current track.The experiment result shows that the micro setpping driver accords with the request and has practical significance and application value.