摘要
在功能性电刺激保护电路中,创新性地设计了脉冲幅度调节电路和过电压放电电路,其特征在于,通过调节脉冲的幅度,改变电刺激的强度,电压和电路中反馈电压比较,当达到设定阈值时,放电电路放电,电路中的反馈电压通过放电电阻释放。放电电路直接通过硬件比较放电,不需要MCU判断,减轻了MCU的负担,提高了控制系统的可操作性和安全性。
This paper introduces a kind of functional electrical stimulation protection circuit,including pulse amplitude regulating circuit and voltage discharge circuit. Adjusting the amplitude of the pulse,changing the intensity of electrical stimulation and comparing the voltage with the circuit of voltage feedback show that,the discharge circuit discharges when a setting threshold is reached and the feedback voltage is released through discharge resistance in the circuit;the discharge circuit can discharge directly through the hardware contrast without the need for MCU judgment,this reduces the burden of MCU and improves both operability and safety of the control system.
作者
王强
兰陟
王丽
李宏亮
邢阳辉
WANG Qiang;LAN Zhi;WANG Li;LI Hong-liang;XING Yang-hui(Beijing Key Laboratory of Rehabilitation Technical Aids for Old-age Disability,National Research Center for Rehabilitation Technical Aids;Key Laboratory of Neuro-functional Information and Rehabilitation Engineering of the Ministry of Civil Affairs,National Research Center for Rehabilitation Technical Aids)
出处
《化工自动化及仪表》
CAS
2019年第2期121-124,共4页
Control and Instruments in Chemical Industry
基金
国家重点研发计划项目(2017YFB1304100)
北京市自然科学基金-海淀原始创新联合基金项目(L172050)
国家康复辅具研究中心基本科研业务费资助项目(118009001000160001)
关键词
保护电路
功能性电刺激
脉冲幅度调节电路
过电压放电
硬件比较放电
protection circuit
functional electrical stimulation
pulse amplitude regulation circuit
overvoltage discharge
hardware comparsion discharge
