| 摘要 |
PROBLEM TO BE SOLVED: To reduce the size and cost of a motor drive controller. SOLUTION: A brushless motor 20 is provided with Hall ICs 28u-28w. The motor 20 is also provided with a microcomputer 51, which forms current feed signals based on position detecting signals outputted from the ICs 28u-28w and preset voltage and phase commands. An AC power source 36 is provided with a DC power source circuit 40 and a current feed means 49, which feeds currents to windings 23u-23w, based on the current feeding signals formed by means of the microcomputer 51 on the output side of the power source circuit 40. The microcomputer 51 is constituted to adjust the phase command or voltage command of a current feed signal for braking, based on the voltage detected by means of a voltage detecting circuit 50. |
