| 摘要 |
PROBLEM TO BE SOLVED: To provide a wiring pattern which allows a sufficient output to be obtained from a Hall element, installed on a brushless motor and a frequency generator with stability. SOLUTION: A wiring pattern 44 which is connected from a position detecting Hall element 38 inside a circle encircled with a FG pattern (pattern for frequency generation) 34, formed on one side of a printed board 14 to a control element 42, such as an IC outside a FG pattern 34, is focused at a point closer to the center 50, and led out. Thereby the circumferential region of the FG pattern 34 is expanded, and sufficiently high frequency generation output is obtained stably. Further, high position detection output is obtained with stability by placing the Hall element 38 in proximity to the magnetic flux of a magnetized section for driving. |
