Motor driving apparatus
AssigneeFanuc Corporation
InventorsKunio TSUCHIDA, Taku SASAKI, Nobuo HIRAYAMA
Life of this patent
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Abstract
To provide a motor driving apparatus capable of obtaining high detection resolution irrespective of whether a frequency of a signal from a detector is high or low. A motor driving apparatus for driving a motor includes an amplifier circuit for receiving a signal from a detector for outputting information including a position and a speed of the motor as the signal, and amplifying the received signal with a set amplification factor, a frequency detecting part for detecting a frequency of the signal, and an amplification factor setting part for changing setting of the amplification factor of the amplifier circuit according to the frequency detected by the frequency detecting part.
Claims8
A. motor driving apparatus for driving a motor, the motor driving apparatus comprising:
- an amplifier circuit for receiving a signal from a detector and amplifying the signal with a set amplification factor, the detector outputting information including a position and a speed of the motor as the signal;
- a frequency detecting part for detecting a frequency of the signal;
- and
- an amplification factor setting part for changing setting of the amplification factor of the amplifier circuit according to the frequency detected by the frequency detecting part.
Dependencies are inferred from the claim text.