Merged Two-Stage Power Converter With Soft Charging Switched-Capacitor Stage in 180 nm CMOS
In this paper, we introduce a merged two-stage dc-dc power converter for low-voltage power delivery. By separating the transformation and regulation function of a dc-dc power converter into two stages, both large voltage transformation and high switching frequency can be achieved. We show how the sw...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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Institute of Electrical and Electronics Engineers (IEEE)
2014
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| Online Access: | http://hdl.handle.net/1721.1/87099 https://orcid.org/0000-0002-0746-6191 |
| _version_ | 1826213299700629504 |
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| author | Pilawa-Podgurski, Robert C. N. Perreault, David J. |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Pilawa-Podgurski, Robert C. N. Perreault, David J. |
| author_sort | Pilawa-Podgurski, Robert C. N. |
| collection | MIT |
| description | In this paper, we introduce a merged two-stage dc-dc power converter for low-voltage power delivery. By separating the transformation and regulation function of a dc-dc power converter into two stages, both large voltage transformation and high switching frequency can be achieved. We show how the switched-capacitor stage can operate under soft charging conditions by suitable control and integration (merging) of the two stages. This mode of operation enables improved efficiency and/or power density in the switched-capacitor stage. A 5-to-1 V, 0.8 W integrated dc-dc converter has been developed in 180 nm CMOS. The converter achieves a peak efficiency of 81%, with a regulation stage switching frequency of 10 MHz. |
| first_indexed | 2024-09-23T15:47:12Z |
| format | Article |
| id | mit-1721.1/87099 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:47:12Z |
| publishDate | 2014 |
| publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| record_format | dspace |
| spelling | mit-1721.1/870992022-10-02T04:02:45Z Merged Two-Stage Power Converter With Soft Charging Switched-Capacitor Stage in 180 nm CMOS Pilawa-Podgurski, Robert C. N. Perreault, David J. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Perreault, David J. Pilawa-Podgurski, Robert C. N. Perreault, David J. In this paper, we introduce a merged two-stage dc-dc power converter for low-voltage power delivery. By separating the transformation and regulation function of a dc-dc power converter into two stages, both large voltage transformation and high switching frequency can be achieved. We show how the switched-capacitor stage can operate under soft charging conditions by suitable control and integration (merging) of the two stages. This mode of operation enables improved efficiency and/or power density in the switched-capacitor stage. A 5-to-1 V, 0.8 W integrated dc-dc converter has been developed in 180 nm CMOS. The converter achieves a peak efficiency of 81%, with a regulation stage switching frequency of 10 MHz. Interconnect Focus Center (United States. Defense Advanced Research Projects Agency and Semiconductor Research Corporation) 2014-05-22T17:21:20Z 2014-05-22T17:21:20Z 2012-05 2012-02 Article http://purl.org/eprint/type/JournalArticle 0018-9200 1558-173X http://hdl.handle.net/1721.1/87099 Pilawa-Podgurski, Robert C. N., and David J. Perreault. “Merged Two-Stage Power Converter With Soft Charging Switched-Capacitor Stage in 180 Nm CMOS.” IEEE Journal of Solid-State Circuits 47, no. 7 (n.d.): 1557–1567. https://orcid.org/0000-0002-0746-6191 en_US http://dx.doi.org/10.1109/JSSC.2012.2191325 IEEE Journal of Solid-State Circuits Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Institute of Electrical and Electronics Engineers (IEEE) Vabulas |
| spellingShingle | Pilawa-Podgurski, Robert C. N. Perreault, David J. Merged Two-Stage Power Converter With Soft Charging Switched-Capacitor Stage in 180 nm CMOS |
| title | Merged Two-Stage Power Converter With Soft Charging Switched-Capacitor Stage in 180 nm CMOS |
| title_full | Merged Two-Stage Power Converter With Soft Charging Switched-Capacitor Stage in 180 nm CMOS |
| title_fullStr | Merged Two-Stage Power Converter With Soft Charging Switched-Capacitor Stage in 180 nm CMOS |
| title_full_unstemmed | Merged Two-Stage Power Converter With Soft Charging Switched-Capacitor Stage in 180 nm CMOS |
| title_short | Merged Two-Stage Power Converter With Soft Charging Switched-Capacitor Stage in 180 nm CMOS |
| title_sort | merged two stage power converter with soft charging switched capacitor stage in 180 nm cmos |
| url | http://hdl.handle.net/1721.1/87099 https://orcid.org/0000-0002-0746-6191 |
| work_keys_str_mv | AT pilawapodgurskirobertcn mergedtwostagepowerconverterwithsoftchargingswitchedcapacitorstagein180nmcmos AT perreaultdavidj mergedtwostagepowerconverterwithsoftchargingswitchedcapacitorstagein180nmcmos |