| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drive circuit for rotary driving devices that makes it possible to reduce noise when multiple stepping motors are rotated. <P>SOLUTION: Pulse signals repetitively generated by a pulse generating unit 21 are sequentially allocated in correspondence with multiple stepping motors 51, 52, 53, 54 at a pulse allocation unit 22. The pulse signals are allocated so that they are not superposed on a time axis. Corresponding stepping motors are driven by motor drivers 41, 42, 43, 44 in correspondence with the allocated pulse signals so that they are rotated at very slow speed. The timing of driving the individual stepping motors 51, 52, 53, 54 is shifted, and noise is thereby reduced. <P>COPYRIGHT: (C)2007,JPO&INPIT |
