| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drive controller for three-phase brushless motor, capable of executing motor drive control using a phase count function of a host controller with a simple configuration. <P>SOLUTION: A motor driver circuit 2 includes a sensor signal conversion circuit 3 that outputs, to a host controller 5, a conversion signal developed by converting a hall sensor signal HUHVHW corresponding to three phases into a signal AB of encoder output form corresponding to two phases, and a motor drive circuit 4 that drives a three-phase brushless motor 1 on the basis of a rotational direction and a rotational speed command of a motor output from the host controller 5. <P>COPYRIGHT: (C)2013,JPO&INPIT |
