A new AC-coupled amplifier for portable ECG without reference electrode

Wang, Ching-Sung

doi:10.1016/j.compeleceng.2012.07.011

Cited by 6 publications

(6 citation statements)

References 8 publications

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“…The RLD circuit only provides marginal improvement in the common mode rejection. This result concurs with that of [7].…”

Section: Resultssupporting

confidence: 82%

“…The input filter is an adapted designed by Wang (2010) [7]and instrumentation amplifier is shown in Figure 3. The components C2, R3 and C3, R4 form a high pass filter to block DC components from the instrumentation amplifier.…”

Section: 1input Filtermentioning

confidence: 99%

“…In general the additional feedback loop of the RLD provides an improved common mode rejection ratio compared to direct grounding method. However, recent findings have shown that with the help of input filters the direct grounding method can also be comparable to using the RLD [7]. In this study, the two methods were compared and applied for EMG acquisition.…”

Section: Introductionmentioning

confidence: 99%

“…In this study, the two methods were compared and applied for EMG acquisition. The basic design of direct grounding method was applied with the input filter proposed in [7] and the effect of cable length and shielding was also investigated.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Optimizing Surface Electromyography Acquisition Without Right Leg Drive Circuit

Fu¹,

Hashim

Jamaludin

et al. 2019

Int. J. Eng. Sci. Tech

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The right leg drive (RLD) is a circuit associated with electrocardiography acquisition circuits. For electromyography (EMG), the RLD circuit is used to a lesser degree. In general, the RLD circuit provides better noise reduction. This study compares the output of the EMG with and without the RLD circuit. The results indicate that with a good filter design, the direct grounding method can match the RLD in terms of noise reduction. As a result, EMG application, the RLD drive can be omitted.

show abstract

“…The RLD circuit only provides marginal improvement in the common mode rejection. This result concurs with that of [7].…”

Section: Resultssupporting

confidence: 82%

Section: 1input Filtermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optimizing Surface Electromyography Acquisition Without Right Leg Drive Circuit

Fu¹,

Hashim

Jamaludin

et al. 2019

Int. J. Eng. Sci. Tech

View full text Add to dashboard Cite

show abstract

“…2 shows the hardware architecture of the system. The miniaturized ECG monitoring developed in this study has a newly-designed AC coupling circuit that needs two-electrode technology to protect users and to eliminate the non-circuit feedback of the earth electrode [7]. There is a single-source power supply system, and the electric circuit is simplified to reduce the area of the circuit and lower power consumption.…”

Section: Analog System Designmentioning

confidence: 99%