Improvement of voltage resolution of a motor driver circuit by a multi-coil drive
Improvement of voltage resolution of a motor driver circuit by a multi-coil drive
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通过多线圈驱动提高电机驱动电路的电压分辨率
DOI：
10.1109/ifeec.2015.7361505
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Akira Yasuda
中科院分区：
文献类型：
--
作者：
Yoshiki Motoyama;Haruka Matsuo;Satochi Saikatsu;Akira Yasuda
在本文中，我们提出了一种结合数字直接驱动技术和多线圈电机的多线圈驱动系统中提高电压分辨率和电流谐波的方法。为了同时实现高分辨率和低噪声特性，需要非常高频的时钟。传统的 PWM 驱动器系统会在载波的谐波频率处产生大量谐波。然而，使用所提出的方法，我们可以通过低频时钟获得高电压分辨率，并且可以用低电压源驱动电机。电流谐波的减少也是可能的。通过仿真和实际测量数据证实了所提出方法的性能。
In this paper, we propose a method to improve the voltage resolution and current harmonics in a multi-coil drive system that combines digital direct-driving technology and a multi-coil motor. In order to achieve both high resolution and low noise characteristics, a very high-frequency clock is required. A conventional PWM driver system generates large harmonics at the harmonic frequency of a carrier wave. However, using the proposed method, we can obtain a high-voltage resolution with a low-frequency clock, and we can drive a motor with a low supply of voltage. The reduction of current harmonics is also possible. The performance of the proposed method is confirmed via simulation and actual measured data.