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A low-cost neurostimulator with accurate pulsed-current control

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dc.contributor.authorDe Lima, J. A.
dc.contributor.authorCordeiro, A. S.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:25:57Z
dc.date.available2014-05-20T15:25:57Z
dc.date.issued2002-05-01
dc.description.abstractA constant-current stimulator for high-impedance loads using only low-cost standard high-voltage components Is presented. A voltage-regulator powers an oscillator built across the primary of a step-up transformer whose secondary supplies, after rectification, the high voltage to a switched current-mirror in the driving stage. Adjusting the regulated voltage controls the pulsed-current intensity. A prototype produces stimulus of amplitude and pulsewidth within 0 less than or equal to I-skin less than or equal to 20 mA and 50 mus less than or equal to T-pulse less than or equal to 1 ms, respectively. Pulse-repetition spans from 1 Hz to 10 Hz. Worst case ripple is 3.7% at I-skin = 1 mA. Overall consumption is 5.6 W at I-skin = 20 mA.en
dc.description.affiliationUniv Estadual Paulista, Dept Elect Engn, VLSI Design & Instrumentat Grp, BR-12516410 Guaratingueta, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Elect Engn, VLSI Design & Instrumentat Grp, BR-12516410 Guaratingueta, SP, Brazil
dc.format.extent497-500
dc.identifierhttp://dx.doi.org/10.1109/10.995689
dc.identifier.citationIEEE Transactions on Biomedical Engineering. New York: IEEE-Inst Electrical Electronics Engineers Inc., v. 49, n. 5, p. 497-500, 2002.
dc.identifier.doi10.1109/10.995689
dc.identifier.issn0018-9294
dc.identifier.urihttp://hdl.handle.net/11449/36269
dc.identifier.wosWOS:000174969600012
dc.language.isoeng
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.relation.ispartofIEEE Transactions on Biomedical Engineering
dc.relation.ispartofjcr4.288
dc.relation.ispartofsjr1,267
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectcurrent sourcept
dc.subjectcurrent stimulatorpt
dc.subjectelectrocutaneous stimulationpt
dc.subjecthigh voltagept
dc.titleA low-cost neurostimulator with accurate pulsed-current controlen
dc.typeArtigo
dcterms.licensehttp://www.ieee.org/publications_standards/publications/rights/rights_policies.html
dcterms.rightsHolderIEEE-Inst Electrical Electronics Engineers Inc
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Arquitetura, Artes, Comunicação e Design, Baurupt
unesp.departmentDesign - FAACpt

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