| 摘要 |
PURPOSE:To provide a pull-in improvement circuit for controlling motors from which the need of an external limiter circuit is eliminated and by which the pull-in time for controlling motors can be reduced. CONSTITUTION:This pull-in improvement circuit for controlling motors is provided with rotating speed detectors 1 and 2 which detect the rotating speed of a motor, comparing reference signal generators 10 and 11 which generate preset comparing reference signals, error detectors 8 and 9 which detects errors by comparing the comparing reference signals with the detected signals of the detectors 1 and 2, error converting/outputting devices 12 and 13 which output errors detected by the detectors 1 and 2 after conversion, and arithmetic microcomputer 17 which recognizes the detecting data from the detectors 8 and 9 to the devices 12 and 13 and performs limiter control of a specific level against the error converted outputs of the devices 12 and 13. |
