| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a three-phase brushless DC motor controller capable of performing variable speed control by the same controllers as DC motors including brushes. <P>SOLUTION: The three-phase brushless DC motor controller includes a control circuit 21b for controlling output of a three-phase bridge circuit 21a for drive control of a three-phase brushless DC motor 22. The three-phase brushless DC motor controller further includes a single-phase bridge circuit 12 for supplying a DC voltage used for the three-phase bridge circuit 21a. The control circuit 21b drives and controls the three-phase brushless DC motor 22, based on a rotation direction signal 52 received from the outside. <P>COPYRIGHT: (C)2011,JPO&INPIT |
