Magnetic actuator driver system for laser scanning capsule endoscopy

IF 3 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Aeu-International Journal of Electronics and Communications Pub Date : 2024-11-07 DOI:10.1016/j.aeue.2024.155571

Berkay Kebapcıoğlu , Kuter Erdil , Ahmet Can Erten , Onur Ferhanoğlu , Mustafa Berke Yelten

{"title":"Magnetic actuator driver system for laser scanning capsule endoscopy","authors":"Berkay Kebapcıoğlu , Kuter Erdil , Ahmet Can Erten , Onur Ferhanoğlu , Mustafa Berke Yelten","doi":"10.1016/j.aeue.2024.155571","DOIUrl":null,"url":null,"abstract":"<div><div>This paper focuses on designing and implementing a power and area-efficient magnetic actuator driver interface integrated circuit for laser scanning capsule endoscopy. The proposed system contains a 3D-printed focus-adjusting actuator embarking a lens, multiple magnets, an external coil, battery, laser, and actuator driver integrated circuit with off-chip components. The actuator features multiple pantograph springs connected to the lens, as well as multiple magnets, enabling precise focusing capability through electromagnetic actuation. A magnetic actuator driver integrated circuit implemented in a commercial 180 nm CMOS process drives the coil at 32 Hz, which is the mechanical resonance frequency of the actuator. A novel control methodology for the driver has been devised, aimed at enhancing driving efficiency and mitigating total harmonic distortion. Simulations and measurements substantiate that the actuator can induce a 3.22 mm focal point displacement while the driver circuit delivers 9.62 mA (RMS) current to the 7.7 mH coil. Under these conditions, the system exhibits an aggregate power consumption of 11.48 mW, thereby achieving a power efficiency of 85.5%.</div></div>","PeriodicalId":50844,"journal":{"name":"Aeu-International Journal of Electronics and Communications","volume":"188 ","pages":"Article 155571"},"PeriodicalIF":3.0000,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Aeu-International Journal of Electronics and Communications","FirstCategoryId":"94","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1434841124004576","RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

This paper focuses on designing and implementing a power and area-efficient magnetic actuator driver interface integrated circuit for laser scanning capsule endoscopy. The proposed system contains a 3D-printed focus-adjusting actuator embarking a lens, multiple magnets, an external coil, battery, laser, and actuator driver integrated circuit with off-chip components. The actuator features multiple pantograph springs connected to the lens, as well as multiple magnets, enabling precise focusing capability through electromagnetic actuation. A magnetic actuator driver integrated circuit implemented in a commercial 180 nm CMOS process drives the coil at 32 Hz, which is the mechanical resonance frequency of the actuator. A novel control methodology for the driver has been devised, aimed at enhancing driving efficiency and mitigating total harmonic distortion. Simulations and measurements substantiate that the actuator can induce a 3.22 mm focal point displacement while the driver circuit delivers 9.62 mA (RMS) current to the 7.7 mH coil. Under these conditions, the system exhibits an aggregate power consumption of 11.48 mW, thereby achieving a power efficiency of 85.5%.

Abstract Image

查看原文本刊更多论文

用于激光扫描胶囊内窥镜的磁性致动器驱动系统

本文的重点是为激光扫描胶囊内窥镜设计和实现一种省电、省面积的磁性致动器驱动器接口集成电路。所提议的系统包含一个三维打印的聚焦调节致动器，其中包含一个透镜、多块磁铁、一个外部线圈、电池、激光器和带有片外元件的致动器驱动集成电路。致动器具有与透镜相连的多个受电弓弹簧和多个磁铁，可通过电磁致动实现精确对焦功能。磁致动器驱动器集成电路采用商用 180 nm CMOS 工艺，以 32 Hz 的频率驱动线圈，这是致动器的机械共振频率。为驱动器设计了一种新的控制方法，旨在提高驱动效率和减少总谐波失真。模拟和测量结果表明，当驱动器电路为 7.7 mH 线圈提供 9.62 mA（有效值）电流时，致动器可产生 3.22 mm 的焦点位移。在这些条件下，系统的总功耗为 11.48 mW，功率效率达到 85.5%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Aeu-International Journal of Electronics and Communications 工程技术-电信学

CiteScore

6.90

自引率

18.80%

发文量

292

审稿时长

4.9 months

期刊介绍： AEÜ is an international scientific journal which publishes both original works and invited tutorials. The journal''s scope covers all aspects of theory and design of circuits, systems and devices for electronics, signal processing, and communication, including: signal and system theory, digital signal processing network theory and circuit design information theory, communication theory and techniques, modulation, source and channel coding switching theory and techniques, communication protocols optical communications microwave theory and techniques, radar, sonar antennas, wave propagation AEÜ publishes full papers and letters with very short turn around time but a high standard review process. Review cycles are typically finished within twelve weeks by application of modern electronic communication facilities.