重复经颅磁刺激电容充电技术的研究

发布时间：2018-02-20 15:08

本文关键词： 重复经颅磁刺激电容充电技术串联谐振恒流充电数字控制技术高频变压器　出处：《生物医学工程研究》2017年04期 　论文类型：期刊论文

【摘要】：本研究将高频串联谐振恒流充电技术应用到重复经颅磁刺激(r TMS)供电系统,充电电压误差保持在5%以内,刺激频率由原先的几赫兹提高到十几赫兹,有效地提高了r TMS供电系统的充电精度和充电速度。本研究还设计了以STM32为核心的数字控制系统,提高了电源的可控性,解决了传统模拟控制方式不可编程、可控性差的不足。最后搭建了实验样机,连入r TMS系统进行测试,工作在500 V时,r TMS刺激频率最高可以达到31 Hz;工作在1 000 V时,刺激频率最高可以达到20 Hz。
[Abstract]:In this study, the high frequency series resonant constant current charging technique was applied to the repetitive transcranial magnetic stimulation (TMS) power supply system. The charging voltage error was kept within 5%, and the stimulation frequency was increased from several hertz to more than 10 hertz. The charging accuracy and charging speed of r TMS power supply system are improved effectively. A digital control system based on STM32 is designed, which improves the controllability of power supply and solves the problem that the traditional analog control mode can not be programmed. At last, the experiment prototype was built and tested with r TMS system. The maximum stimulating frequency of r TMS was 31 Hz at 500V and 20 Hz when working at 1 000 V.
【作者单位】：中国科学院生物电磁学北京市重点实验室中国科学院电工研究所;中国科学院大学电子电气与通信工程学院;
【基金】：国家自然科学基金资助项目(51577183,31400717)
【分类号】：R318

【相似文献】