Fine Sensorless Force Control using Diode-Clamped Linear Amplifiers
Fine Sensorless Force Control using Diode-Clamped Linear Amplifiers
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DOI：
10.1541/ieejjia.3.277
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发表时间：
2014
影响因子：
1.7
通讯作者：
Y. Yokokura;K. Ohishi
中科院分区：
文献类型：
--
作者：
Y. Yokokura;K. Ohishi
为了实现低噪声和精细力控制，本文研制了二极管箝位线性放大器。b类和d类功率放大器不适合驱动电机，因为它们的功率效率和高开关噪声。特别是使用d类功率放大器的力控制系统，由于PWM或PDM的开关操作，无法产生适当的精细力。因此，我们将重点放在能够同时解决功率效率和力噪声问题的DCLAs上。此外，直线电机产生的力噪声比d类功率放大器产生的力噪声小。通过理论分析、仿真和实验，验证了基于DCLAs的力控制系统的有效性。
In this paper, diode-clamped linear amplifiers (DCLAs) are developed for achieving low-noise and fine force control. Class-B and Class-D power amplifiers are not suitable for driving a motor, owing to their power efficiency and high switching noise. In particular, a force control system using Class-D power amplifiers cannot generate appropriate fine force because of the switching operations by PWM or PDM. For that reason, we focus on DCLAs, which are capable of solving the problems both power efficiency and force noise. Furthermore, the force noise generated by the linear motor is less than that generated by the Class-D power amplifiers. Through a theoretical analysis, simulations, and experiments, the validity of the force control system using DCLAs is verified.