| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor controller which achieves offset correction at low cost and besides at real time, by suppressing the increase of quantity of calculation without increasing the number of circuit parts. SOLUTION: An offset detection means 13 successively detects an offset by the difference between the present value of a motor current converted into a two-phase by three-phase - two-phase conversion with a motor current detection means 12 and the value of a half cycle ahead of the motor current. Moreover, an offsetting means 14 performs offset correction by successively subtracting the detected offset from the present value of the motor current converted into the two-phase. |
