Modular architecture for ultra low power switched-capacitor DC-DC converters

Castro Lisboa, Pablo - Silveira, Fernando - Eirea, Gabriel

Resumen:

This work presents a novel modular architecture for a step-down Switched-Capacitor Converter for Ultra Low Power applications. The modularity of the architecture allows to generate any conversion ratio in the same way. Additionally a technique for increasing efficiency by recycling the charge stored in parasitic capacitances is presented, which reduced the losses due to this cause in 80%. An example of converter with four conversion ratios for a supply voltage of 2.8V, load current up to 100μA in a 0.5μm CMOS process was designed and electrically simulated. The efficiency achieved for the 4/5 conversion ratio is above 77% for one order of magnitude of the load current.


Detalles Bibliográficos
2012
Electrónica
Inglés
Universidad de la República
COLIBRI
https://hdl.handle.net/20.500.12008/41139
Acceso abierto
Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
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author Castro Lisboa, Pablo
author2 Silveira, Fernando
Eirea, Gabriel
author2_role author
author
author_facet Castro Lisboa, Pablo
Silveira, Fernando
Eirea, Gabriel
author_role author
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collection COLIBRI
dc.creator.none.fl_str_mv Castro Lisboa, Pablo
Silveira, Fernando
Eirea, Gabriel
dc.date.accessioned.none.fl_str_mv 2023-11-14T17:04:28Z
dc.date.available.none.fl_str_mv 2023-11-14T17:04:28Z
dc.date.issued.es.fl_str_mv 2012
dc.date.submitted.es.fl_str_mv 20231114
dc.description.abstract.none.fl_txt_mv This work presents a novel modular architecture for a step-down Switched-Capacitor Converter for Ultra Low Power applications. The modularity of the architecture allows to generate any conversion ratio in the same way. Additionally a technique for increasing efficiency by recycling the charge stored in parasitic capacitances is presented, which reduced the losses due to this cause in 80%. An example of converter with four conversion ratios for a supply voltage of 2.8V, load current up to 100μA in a 0.5μm CMOS process was designed and electrically simulated. The efficiency achieved for the 4/5 conversion ratio is above 77% for one order of magnitude of the load current.
dc.identifier.citation.es.fl_str_mv Castro, P, Silveira, F, Eirea, G. "Modular architecture for Ultra Low Power Switched-Capacitor DC-DC Converters," [Preprint] Publicado en 2012 IEEE 55th International Midwest Symposium on Circuits and Systems (MWSCAS), Boise, ID, USA, 2012, pp. 1036-1039, doi: 10.1109/MWSCAS.2012.6292200
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/20.500.12008/41139
dc.language.iso.none.fl_str_mv en
eng
dc.rights.license.none.fl_str_mv Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
dc.source.none.fl_str_mv reponame:COLIBRI
instname:Universidad de la República
instacron:Universidad de la República
dc.subject.other.es.fl_str_mv Electrónica
dc.title.none.fl_str_mv Modular architecture for ultra low power switched-capacitor DC-DC converters
dc.type.es.fl_str_mv Preprint
dc.type.none.fl_str_mv info:eu-repo/semantics/preprint
dc.type.version.none.fl_str_mv info:eu-repo/semantics/submittedVersion
description This work presents a novel modular architecture for a step-down Switched-Capacitor Converter for Ultra Low Power applications. The modularity of the architecture allows to generate any conversion ratio in the same way. Additionally a technique for increasing efficiency by recycling the charge stored in parasitic capacitances is presented, which reduced the losses due to this cause in 80%. An example of converter with four conversion ratios for a supply voltage of 2.8V, load current up to 100μA in a 0.5μm CMOS process was designed and electrically simulated. The efficiency achieved for the 4/5 conversion ratio is above 77% for one order of magnitude of the load current.
eu_rights_str_mv openAccess
format preprint
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identifier_str_mv Castro, P, Silveira, F, Eirea, G. "Modular architecture for Ultra Low Power Switched-Capacitor DC-DC Converters," [Preprint] Publicado en 2012 IEEE 55th International Midwest Symposium on Circuits and Systems (MWSCAS), Boise, ID, USA, 2012, pp. 1036-1039, doi: 10.1109/MWSCAS.2012.6292200
instacron_str Universidad de la República
institution Universidad de la República
instname_str Universidad de la República
language eng
language_invalid_str_mv en
network_acronym_str COLIBRI
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oai_identifier_str oai:colibri.udelar.edu.uy:20.500.12008/41139
publishDate 2012
reponame_str COLIBRI
repository.mail.fl_str_mv mabel.seroubian@seciu.edu.uy
repository.name.fl_str_mv COLIBRI - Universidad de la República
repository_id_str 4771
rights_invalid_str_mv Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
spelling 2023-11-14T17:04:28Z2023-11-14T17:04:28Z201220231114Castro, P, Silveira, F, Eirea, G. "Modular architecture for Ultra Low Power Switched-Capacitor DC-DC Converters," [Preprint] Publicado en 2012 IEEE 55th International Midwest Symposium on Circuits and Systems (MWSCAS), Boise, ID, USA, 2012, pp. 1036-1039, doi: 10.1109/MWSCAS.2012.6292200https://hdl.handle.net/20.500.12008/41139This work presents a novel modular architecture for a step-down Switched-Capacitor Converter for Ultra Low Power applications. The modularity of the architecture allows to generate any conversion ratio in the same way. Additionally a technique for increasing efficiency by recycling the charge stored in parasitic capacitances is presented, which reduced the losses due to this cause in 80%. An example of converter with four conversion ratios for a supply voltage of 2.8V, load current up to 100μA in a 0.5μm CMOS process was designed and electrically simulated. The efficiency achieved for the 4/5 conversion ratio is above 77% for one order of magnitude of the load current.Made available in DSpace on 2023-11-14T17:04:28Z (GMT). No. of bitstreams: 5 CSE12.pdf: 327553 bytes, checksum: eff541aa9e76e289bea572f5ea69edbc (MD5) license_text: 21936 bytes, checksum: 9833653f73f7853880c94a6fead477b1 (MD5) license_url: 49 bytes, checksum: 4afdbb8c545fd630ea7db775da747b2f (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) license.txt: 4194 bytes, checksum: 7f2e2c17ef6585de66da58d1bfa8b5e1 (MD5) Previous issue date: 2012enengLas obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad De La República. (Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014)info:eu-repo/semantics/openAccessLicencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)ElectrónicaModular architecture for ultra low power switched-capacitor DC-DC convertersPreprintinfo:eu-repo/semantics/preprintinfo:eu-repo/semantics/submittedVersionreponame:COLIBRIinstname:Universidad de la Repúblicainstacron:Universidad de la RepúblicaCastro Lisboa, PabloSilveira, FernandoEirea, 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- Universidad de la Repúblicafalse
spellingShingle Modular architecture for ultra low power switched-capacitor DC-DC converters
Castro Lisboa, Pablo
Electrónica
status_str submittedVersion
title Modular architecture for ultra low power switched-capacitor DC-DC converters
title_full Modular architecture for ultra low power switched-capacitor DC-DC converters
title_fullStr Modular architecture for ultra low power switched-capacitor DC-DC converters
title_full_unstemmed Modular architecture for ultra low power switched-capacitor DC-DC converters
title_short Modular architecture for ultra low power switched-capacitor DC-DC converters
title_sort Modular architecture for ultra low power switched-capacitor DC-DC converters
topic Electrónica
url https://hdl.handle.net/20.500.12008/41139