| 基于FPGA的自动相机聚焦电机伺服控制系统集成电路(IC)设计与实现 |
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| 引用本文： | 陈刚,王洪诚,王钰涵,许瑾.基于FPGA的自动相机聚焦电机伺服控制系统集成电路(IC)设计与实现[J].微电机,2012,45(7):50-54. |
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| 作者姓名： | 陈刚 王洪诚 王钰涵 许瑾 |
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| 作者单位： | 1. 西南石油大学,成都,610500
2. 大港油田滩海开发公司,天津,300280 |
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| 基金项目： | 2011年度国家青年自然科学基金，2011年度四川省教育厅重点项目 |
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| 摘 要： | 采用现场可编程门阵列(FPGA)实现了自动相机聚焦(AF)镜头模块位置控制电机伺服控制系统集成电路(IC)的全数字控制设计。镜头模块位置控制驱动电机由具有数字伺服驱动的音圈电机(VCM)担任,数字伺服驱动包括数字伺服控制器、数字电流控制器和全桥DC-DC转换器,系统能为高性能、轻质量和超薄型的移动式自动相机的AF镜头模块位置控制提供完整的数字控制方案,使相机的AF镜头模块控制范围在30 ms内可以达到0.6 mm,控制分辨率小于5μm,驱动力峰值为30 mN,输出电流峰值为120 mA。
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| 关 键 词： | FPGA 电流环 位置环 转速环 集成电路 |
Design and Implementation of IC for Auto-focus Camera Motor Servo Control System Based on FPGA |
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| CHEN Gang
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WANG Hongcheng
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WANG Yuhan
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XU Jin.Design and Implementation of IC for Auto-focus Camera Motor Servo Control System Based on FPGA[J].Micromotors,2012,45(7):50-54. |
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| Authors: | CHEN Gang WANG Hongcheng WANG Yuhan XU Jin |
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| Affiliation: | 1(1.Southwest Petroleum University,Chengdu 610500,China; 2.The Beach Development Company of CNPC,Tianjin 300280,China) |
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| Abstract: | This paper implemented a fully digital control IC for the position control motor servo control system of the auto-focus(AF) lens module in applications to mobile camera using the field programmable gate array(FPGA).The position control drive motor of AF lens module was driven by a voice-coil motor(VCM) with a digital servo drive IC.The proposed digital servo drive IC included a digital servo controller,a digital current controller,and a full-bridge DC-DC converter.The system can provide a total digital solution to the position control of the AF lens module position control in applications to high-performance,light-weight and slim-type mobile phone camera,and makes the AF lens module position control can reach a control range of 0.6 mm within 30 ms with a control resolution less than 5 μm,a peak driving force of 30 mN,and a peak output current of 120 mA. |
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| Keywords: | FPGA current loop position loop velocity loop IC |
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