2022
DOI: 10.1007/s40846-022-00720-9
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Size Constraint to Limit Interference in DRL-Free Single-Ended Biopotential Measurements

Abstract: Purpose: In this work, it is shown that small, battery-powered wireless devices are so robust against electromagnetic interference that single-ended amplifiers can become a viable alternative for biopotential measurements, even without a Driven Right Leg (DRL) circuit.Methods: A power line interference analysis is presented for this case showing that this simple circuitry solution is feasible, and presenting the constraints under which it is so: small-size devices with dimensions less than 40 mm × 20 mm.Result… Show more

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Cited by 5 publications
(1 citation statement)
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“…Tis method makes the power factor in the circuit low and increases the harmonic content of the current in the circuit [3]. In addition, there are switching elements, diodes, and flter capacitors and inductors with large values in the control system circuit, these are all nonlinear components, and their nonlinearity will seriously pollute the quality of the power grid [4]. If an AC circuit is added to improve the power factor after passing through the rectifer bridge, the harmonic content of the current can be efectively reduced and the power factor on the grid side can be improved with only a small increase in cost [5].…”
Section: Introductionmentioning
confidence: 99%
“…Tis method makes the power factor in the circuit low and increases the harmonic content of the current in the circuit [3]. In addition, there are switching elements, diodes, and flter capacitors and inductors with large values in the control system circuit, these are all nonlinear components, and their nonlinearity will seriously pollute the quality of the power grid [4]. If an AC circuit is added to improve the power factor after passing through the rectifer bridge, the harmonic content of the current can be efectively reduced and the power factor on the grid side can be improved with only a small increase in cost [5].…”
Section: Introductionmentioning
confidence: 99%