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Conference Paper: Development of low-profile DC/DC converter using switched-capacitor circuits and coreless PCB gate drive

TitleDevelopment of low-profile DC/DC converter using switched-capacitor circuits and coreless PCB gate drive
Authors
KeywordsCapacitors
Electric Current Control
Electric Currents
Electric Potential
Electric Waveforms
Mosfet Devices
Power Converters
Issue Date1999
PublisherIEEE
Citation
Pesc Record - Ieee Annual Power Electronics Specialists Conference, 1999, v. 1, p. 48-53 How to Cite?
AbstractThis paper presents the design and analysis of a low-profile multi-stage 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 other circuits. Concept of energy transfer is achieved by paralleling the input and output of two step-down converter cells and operating them in anti-phase. Voltage conversion ratio is determined by controlling the capacitor charging trajectories. 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 n-stage converter is derived. Static and small-signal dynamic behaviors of the converter are investigated. Experimental measurements of a 70W, 48V/12V prototype are verified with analytical predictions.
Persistent Identifierhttp://hdl.handle.net/10722/136848
ISSN

 

DC FieldValueLanguage
dc.contributor.authorChung, Henry SHen_HK
dc.contributor.authorHui, SYRen_HK
dc.contributor.authorTang, SCen_HK
dc.date.accessioned2011-07-29T02:13:07Z-
dc.date.available2011-07-29T02:13:07Z-
dc.date.issued1999en_HK
dc.identifier.citationPesc Record - Ieee Annual Power Electronics Specialists Conference, 1999, v. 1, p. 48-53en_HK
dc.identifier.issn0275-9306en_HK
dc.identifier.urihttp://hdl.handle.net/10722/136848-
dc.description.abstractThis paper presents the design and analysis of a low-profile multi-stage 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 other circuits. Concept of energy transfer is achieved by paralleling the input and output of two step-down converter cells and operating them in anti-phase. Voltage conversion ratio is determined by controlling the capacitor charging trajectories. 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 n-stage converter is derived. Static and small-signal dynamic behaviors of the converter are investigated. Experimental measurements of a 70W, 48V/12V prototype are verified with analytical predictions.en_HK
dc.languageengen_US
dc.publisherIEEEen_US
dc.relation.ispartofPESC Record - IEEE Annual Power Electronics Specialists Conferenceen_HK
dc.subjectCapacitorsen_US
dc.subjectElectric Current Controlen_US
dc.subjectElectric Currentsen_US
dc.subjectElectric Potentialen_US
dc.subjectElectric Waveformsen_US
dc.subjectMosfet Devicesen_US
dc.subjectPower Convertersen_US
dc.titleDevelopment of low-profile DC/DC converter using switched-capacitor circuits and coreless PCB gate driveen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailHui, SYR:ronhui@eee.hku.hken_HK
dc.identifier.authorityHui, SYR=rp01510en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0033343305en_HK
dc.identifier.volume1en_HK
dc.identifier.spage48en_HK
dc.identifier.epage53en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChung, Henry SH=7404007467en_HK
dc.identifier.scopusauthoridHui, SYR=7202831744en_HK
dc.identifier.scopusauthoridTang, SC=24340444700en_HK

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