降低功耗的高频磁刺激仪电路参数优化设计及仿真  

Optimization and Simulation of rTMS Circuit Reducing Power Consumption

作　　者：安好[1] 刘志朋[1] 李松[1] 蒲莉娜[1] 殷涛[1] 

机构地区：[1]中国医学科学院北京协和医学院生物医学工程研究所,天津300192

出　　处：《生物医学工程研究》2009年第1期16-20,共5页Journal Of Biomedical Engineering Research

基　　金：天津市重点科技攻关项目(06YFSZSF00700);国家科技部升级改造项目(2006JG004700)

摘　　要：针对重复经颅磁刺激仪功率消耗高的问题,我们通过建立电路模型,利用MATLAB平台进行仿真计算,研究了一种对放电的剩余能量进行有效回收的方法,并对磁刺激仪充放电及电能回收电路进行了设计,同时利用MCU实现了对电路充放电的智能控制。通过NI的Multisim平台对电能回收电路进行了仿真验证。仿真结果表明,本研究设计的电能回收电路,能使放电能量的回收率达到21%,从而降低了重复经颅磁刺激系统的功耗,提高了电能的利用效率。In order to solve the key technology of high power consumption in repetitive transcranial magnetic stimulation（rTMS）, we presented a design for collecting and utilizing the rest energy in the process of TMS. A circuit model was established and Matlab was used as a tool to optimize the circuit parameters. The system circuit auto - controlled by MCU was designed to carry out the principle of utilizing the rest energy and Multisim derived from national instrument（NI） was used to simulate the circuit design. Results of the simulating experiment show good performance in reducing the power consumption of 21% in the rTMS system, this design can reduce the power consumption and take advantage of utilization efficiency.

关 键 词：高频磁刺激 降低功耗 优化设计 能量回收 仿真 

分 类 号：R318[医药卫生—生物医学工程]