摘要
设计了一种高效的神经肌肉电刺激(Neuromuscular Electrical Stimulation,NMES)系统。NMES的工作原理是利用神经细胞的电兴奋性,通过脉冲电流刺激支配肌肉的神经,从而使肌肉收缩。系统由干电池供电,降压和升压电路采用高效的方案从而来降低功耗,以STM32F4单片机为主控芯片,产生用于控制刺激强度的DAC信号,以及复用开关的控制信号,经过由复用开关、恒流源、H桥组成的复用恒流源电路,产生分时的电流刺激,从而有效降低系统功耗和设备体积。
The article presents an efficient system for neuromuscular electrical stimulation(NMES).NMES operates by harnessing the electrical excitability of nerve cells to stimulate the nerves that control muscles through pulsed electrical currents,thereby inducing muscle contractions.The system is powered by dry cell batteries,and the voltage regulation and boost circuits employ high-efficiency designs to reduce power consumption.It is centered around the STM32F4 microcontroller,which generates the DAC signals for controlling the stimulation intensity,as well as the control signals for the multiplexing switch.Through a circuit comprising a multiplexing switch,constant current source,and H-bridge,the system produces time-division current stimulation,effectively reducing power consumption and device size.
作者
刘东鸣
王妙
乔峰
窦唯波
郭春花
Li Dongming;Wang Miao;Qiao Feng;Dou Weibo;Guo Chunhua(Shaanxi Medical Devices Quality Testing Institute,Xi′an 712046,China;Sichuan Testing Center of Medical Device,Chengdu 611731,China)
出处
《电子技术应用》
2024年第8期102-107,共6页
Application of Electronic Technique
基金
陕西省重点研发计划(S2024-YF-YBSF-1148)。
