Abstract

In order to cope with the demands for advanced feed drive controllers, a compact full digital servo controller has earlier been proposed so that three types of motors (DC, BLDC & AC) can be controlled with one unique hardware, only by changing its software. Aiming at a higher overall performance including Cost-effectiveness a project for integrating this “Flexible Servo Controller” has been conducted. This paper describes the development of an original ASIC chip using Standard Cell technology for the very fast current loop processing which is the most critical part of the software servo control.

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