Incremental Encoder Based Position and Velocity Measurements VLSI Chip with Serial Peripheral Interface
Incremental Encoder Based Position and Velocity Measurements VLSI Chip with Serial Peripheral Interface
复制标题
基于增量编码器的位置和速度测量 具有串行外设接口的 VLSI 芯片
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
P. Kazanzides
中科院分区：
文献类型：
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作者：
N. Ekekwe;R. Etienne;P. Kazanzides
本文介绍了一种基于增量式光电编码器的位置和速度测量VLSI芯片，该芯片具有串行外设接口（SPI）。它结合了周期和频率计数，以提供在宽速度范围内具有良好动态行为的速度估计。通过检测编码器的速度，它保留了监控微控制器的计算能力，从而提高了整个系统的性能。此外，速度编码器的多个副本可以并行访问多个电机的行为。与传统的FPGA实现相比，它结构紧凑，功耗更低。虽然设计用于34轴医疗机器人的控制单元，空间和功率限制很小，但它可以很容易地用于其他应用。它是在一个2P3M的0.5mum CMOS工艺实现，并消耗4.82mW的功率与0.45mm2的有效面积。
This paper presents an incremental optical encoder based position and velocity measurements VLSI chip with a serial peripheral interface (SPI). It combines period and frequency countings to provide velocity estimates with good dynamic behavior over a wide speed range. By sensing the velocity of the encoder, it reserves the computational power of a supervisory microcontroller, and subsequently enhances the performance of the total system. Furthermore, multiple copies of the velocity encoder can access the behavior of multiple motors in parallel. It is compact with lower power consumption compared to traditional FPGA implementations. Although designed for use in the control unit of a medical robot with 34-axes and tight space and power constraints, it can be readily used in other applications. It is implemented in a 2P3M 0.5mum CMOS process and consumes 4.82mW power with active area of 0.45mm2.