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Article: Development of a multistage current-controlled switched-capacitor step-down DC/DC converter with continuous input current

TitleDevelopment of a multistage current-controlled switched-capacitor step-down DC/DC converter with continuous input current
Authors
KeywordsCapacitors
Electric Charge
Electric Currents
Electric Potential
Electromagnetic Wave Interference
Integrated Circuit Manufacture
Numerical Methods
Power Supply Circuits
Issue Date2000
PublisherIEEE
Citation
Ieee Transactions On Circuits And Systems I: Fundamental Theory And Applications, 2000, v. 47 n. 7, p. 1017-1025 How to Cite?
AbstractThis paper presents the design and analysis of a low-profile multistage current-controlled switched-capacitor (SC) step-down dc/dc converter. The converter not only exhibits all advantages of classical SC converters, but also features good regulation capability and continuous input current waveform, resulting in low conducted electromagnetic interference with the supply network. The concept of energy transfer is achieved by paralleling the input and output of two step-down converter cells and operating them in antiphase. The voltage conversion ratio is determined by controlling the charging trajectories of the capacitors in each cell. As the circuit is unnecessary to use any inductive elements, possibilities of integrated circuit fabrication and high power density are promising. By applying the state-space averaging technique, a third-order state-space model for an n-stage converter is derived. Static and small-signal dynamic behaviors of the converter are investigated. A 70-W 48-V/12 V converter is implemented. Analytical predictions are verified with experimental measurements.
Persistent Identifierhttp://hdl.handle.net/10722/136835
ISSN
2006 Impact Factor: 1.139
2006 SCImago Journal Rankings: 1.111
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChung, HSHen_HK
dc.contributor.authorHui, SYen_HK
dc.contributor.authorTang, SCen_HK
dc.date.accessioned2011-07-29T02:13:01Z-
dc.date.available2011-07-29T02:13:01Z-
dc.date.issued2000en_HK
dc.identifier.citationIeee Transactions On Circuits And Systems I: Fundamental Theory And Applications, 2000, v. 47 n. 7, p. 1017-1025en_HK
dc.identifier.issn1057-7122en_HK
dc.identifier.urihttp://hdl.handle.net/10722/136835-
dc.description.abstractThis paper presents the design and analysis of a low-profile multistage current-controlled switched-capacitor (SC) step-down dc/dc converter. The converter not only exhibits all advantages of classical SC converters, but also features good regulation capability and continuous input current waveform, resulting in low conducted electromagnetic interference with the supply network. The concept of energy transfer is achieved by paralleling the input and output of two step-down converter cells and operating them in antiphase. The voltage conversion ratio is determined by controlling the charging trajectories of the capacitors in each cell. As the circuit is unnecessary to use any inductive elements, possibilities of integrated circuit fabrication and high power density are promising. By applying the state-space averaging technique, a third-order state-space model for an n-stage converter is derived. Static and small-signal dynamic behaviors of the converter are investigated. A 70-W 48-V/12 V converter is implemented. Analytical predictions are verified with experimental measurements.en_HK
dc.languageengen_US
dc.publisherIEEEen_US
dc.relation.ispartofIEEE Transactions on Circuits and Systems I: Fundamental Theory and Applicationsen_HK
dc.subjectCapacitorsen_US
dc.subjectElectric Chargeen_US
dc.subjectElectric Currentsen_US
dc.subjectElectric Potentialen_US
dc.subjectElectromagnetic Wave Interferenceen_US
dc.subjectIntegrated Circuit Manufactureen_US
dc.subjectNumerical Methodsen_US
dc.subjectPower Supply Circuitsen_US
dc.titleDevelopment of a multistage current-controlled switched-capacitor step-down DC/DC converter with continuous input currenten_HK
dc.typeArticleen_HK
dc.identifier.emailHui, SY:ronhui@eee.hku.hken_HK
dc.identifier.authorityHui, SY=rp01510en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/81.855457en_HK
dc.identifier.scopuseid_2-s2.0-0034225164en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034225164&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume47en_HK
dc.identifier.issue7en_HK
dc.identifier.spage1017en_HK
dc.identifier.epage1025en_HK
dc.identifier.isiWOS:000088504900006-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChung, HSH=7404007467en_HK
dc.identifier.scopusauthoridHui, SY=7202831744en_HK
dc.identifier.scopusauthoridTang, SC=24340444700en_HK

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