Electricity: motive power systems – Positional servo systems
Reexamination Certificate
2011-04-26
2011-04-26
Benson, Walter (Department: 2837)
Electricity: motive power systems
Positional servo systems
C318S599000, C318S600000
Reexamination Certificate
active
07932689
ABSTRACT:
A motor drive system is provided with a plurality of axis control parts for outputting PWM commands using a position command, a plurality of current supply parts which supply current to the respective windings based on the PWM commands of the respective axis control parts, and which are connected to the respective windings, a motor position detector for outputting a signal of a rotor position of the motor, a first signal supply part for supplying the output signal to one current supply part of the plurality of current supply parts, and a second signal supply part for supplying the signal supplied through the first signal supply part to an axis control part corresponding to one current supply part, and the corresponding axis control part outputs a PWM command based on the signal supplied from the one current supply part through the second signal supply part to the corresponding axis control part and the position command, and the remaining axis control part outputs the PWM command based on the signal supplied from the corresponding axis control part to the remaining axis control parts and the position command. Thereby, a motor drive system capable of driving a plurality of inverters can be made simple.
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Notice of Reasons for Rejection for Japanese Application No. 2009-048337 issued May 18, 2010.
Iwashita Yasusuke
Maeda Kazuomi
Okita Tadashi
Toyozawa Yukio
Benson Walter
Fanuc Ltd
Lowe Hauptman & Ham & Berner, LLP
Paul Antony M
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