一个无电容,交流合的单体输入阶段,优化为多通道表面EMG采集.
概括
使用CMOS技术开发了表面电肌图 (sEMG) 的新输入阶段,使得小型,可穿戴的sEMG设备能够用于研究和临床使用.
科学领域:
- 生物医学工程 生物医学工程
- 集成电路设计 集成电路设计
背景情况:
- 多通道表面电肌图 (sEMG) 系统对于神经肌肉分析至关重要.
- 目前的sEMG研究设置通常很大,基于桌面,限制了可移植性.
研究的目的:
- 为多通道sEMG应用设计和实现小型化的输入阶段.
- 为了优化输入阶段,减少芯片面积和提高性能.
主要方法:
- 在电路设计中采用0.35微米CMOS技术.
- 集成的基于MOS的伪电阻和MOS电容器用于交流合,以最大限度地减少面积.
- 在五个模具中制造并测试了20个通道.
主要成果:
- 成功设计并实现了针对sEMG的优化输入阶段.
- 在制造道中展示了性能和可变性.
- 使用商业电极进行确认的生物测量.
结论:
- 拟议的输入阶段有效地减少了sEMG系统的大小.
- 这项技术可以从现有的研究设置中促进可穿戴sEMG产品的开发.
相关概念视频
01:20Design Example: Capacitance Multiplier Circuit
668
In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
668
01:25MOS Capacitor
666
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
666