| 摘要 |
PURPOSE:To provide a driver for a DC brushless motor, which can prevent the occurrence of noise with improved operation grade. CONSTITUTION:A motor 2 is equipped with a stator 20, which has three pairs of coils 3a and 3b, 4a and 4b, and 5a and 5b, and each pair of coils 3a and 3b, 4a and 4b, and 5a and 5b are arranged each on diagonals, and are driven with drive signals of U phase, V phase, and W phase from a driver 1. Three magnetic pole detecting elements H1, H2, and H3 consisting of, for example, Hall elements are provided in the face of the coils 3a, 4b, and 5b. The driver 1 is equipped with an inverter circuit 6 which supplies the coils 3a and 3b, 4a and 4b, and 5a and 5b with the drive signals of U phase, V phase, and W phase, and the inverter circuit 6 is provided with six transistors Q1, Q2, Q3, Q4, Q5, and Q6. |
