| 摘要 |
PURPOSE:To obtain a control circuit for a motor for producing sufficient output of a motor and capable of preventing a flashover by limiting a current in response to the rotating speed of the motor. CONSTITUTION:The output voltage of a command voltage generator 1 is output through a voltage limiter 10, and an amplifier 2 applies a deviation between the command voltage and a feedback voltage from a current detector 4 through a power amplifier 3 to a motor 5. A read-only memory 8 outputs the limited value of the limiter 10 in response to the output of a speed detector 6. Thus, the output of the motor can be output at the maximum limit, and flashover can be prevented. |
