Modeling and design of a voice-coil motor for auto-focusing digital cameras using an electromagnetic simulation software

被引：11

作者：

Hsu, Jhih-Da ^{[1
]}

Tzou, Ying-Yu ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Elect & Control Engn, Adv Power Elect Ctr, Power Elect Syst & Chips Lab, Hsinchu, Taiwan

来源：

2007 IEEE POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-6 | 2007年

关键词：

voice coil motor; modeling; electromagnetic simulation; iterative optimal design;

D O I：

10.1109/PESC.2007.4342114

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents the modeling of a voice coil motor (VCM) used for the auto-focusing control of a digital camera in applications to high-performance mobile phones. The force constant and its associated back EMF constant of a VCM can be highly nonlinear with the mechanical structure. Conventional modeling technique using the derived flux distribution based on geometrical structure is quite involved and impractical to identify its equivalent parameters. A modeling procedure for a specially designed VCM is developed based on its mechanical structure and used material by using an electromagnetic simulation software - the Ansoft's Maxwell 2D. An iterative optimal design process is then proposed to maximize the force constant of the VCM with a specified volume. Simulation results with experimental verification are given to illustrate that the proposed design procedure can achieve a satisfactory performance.

引用

页码：939 / 944

页数：6

共 7 条

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