| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a printed circuit board for a brushless motor that is applicable to both a magnetism detection system and a sensorless system. <P>SOLUTION: When using the magnetism detection system, a jumper resistor 491 is not mounted to the printed circuit board 4 for the brushless motor, and neutral point connection wiring 481 is not connected to Hall element connection wiring 451. On the other hand, when the sensorless system is used, the jumper resistor 491 is mounted to the printed circuit board 4 for the brushless motor and the neutral point connection wiring 481 is connected to the Hall element connection wiring 451. Each Hall element 5-7 is not mounted to the printed circuit board 4 for the brushless motor. By changing the connection state of the neutral point connection wiring 481 and the Hall element connection wiring 451 with the jumper resistor 491, the printed circuit board 4 for the brushless motor can be made applicable to either of the magnetism detection system and the sensorless system. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
