A Two-Stage Universal Input Charger With Wide Output Voltage Range
This article presents the design of a two-stage 50 W portable charger architecture with universal ac input and 5 V/25 W, 9 V/45 W, 12 V/50 W output. A 98.5% efficient valley-switched boost converter operating at 0.5-2 MHz enables a 59% reduction in buffer capacitor volume compared to an example elec...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2020-01-01
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| Series: | IEEE Open Journal of Power Electronics |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9051996/ |
| _version_ | 1818875145833414656 |
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| author | Mike K. Ranjram Cheng Zhang David J. Perreault |
| author_facet | Mike K. Ranjram Cheng Zhang David J. Perreault |
| author_sort | Mike K. Ranjram |
| collection | DOAJ |
| description | This article presents the design of a two-stage 50 W portable charger architecture with universal ac input and 5 V/25 W, 9 V/45 W, 12 V/50 W output. A 98.5% efficient valley-switched boost converter operating at 0.5-2 MHz enables a 59% reduction in buffer capacitor volume compared to an example electrolytic capacitor while a stacked-bridge LLC converter with a Variable-Inverter-Rectifier-Transformer (VIRT) offers greater than 96% efficiency across the wide output voltage range. The design demonstrates the potential and trade-offs of a two-stage architecture at this operating power and illustrates the benefits of the utilized power stage topologies in achieving both small size and high efficiency over wide input- and output voltage ranges. |
| first_indexed | 2024-12-19T13:21:51Z |
| format | Article |
| id | doaj.art-6d107e88592e4033addf93b1104d2df4 |
| institution | Directory Open Access Journal |
| issn | 2644-1314 |
| language | English |
| last_indexed | 2024-12-19T13:21:51Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of Power Electronics |
| spelling | doaj.art-6d107e88592e4033addf93b1104d2df42022-12-21T20:19:40ZengIEEEIEEE Open Journal of Power Electronics2644-13142020-01-0118810210.1109/OJPEL.2020.29833829051996A Two-Stage Universal Input Charger With Wide Output Voltage RangeMike K. Ranjram0https://orcid.org/0000-0002-6513-1488Cheng Zhang1https://orcid.org/0000-0002-4547-8329David J. Perreault2https://orcid.org/0000-0002-0746-6191Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USASchool of Electrical and Electronic Engineering, The University of Manchester, Manchester, UKDepartment of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA, USAThis article presents the design of a two-stage 50 W portable charger architecture with universal ac input and 5 V/25 W, 9 V/45 W, 12 V/50 W output. A 98.5% efficient valley-switched boost converter operating at 0.5-2 MHz enables a 59% reduction in buffer capacitor volume compared to an example electrolytic capacitor while a stacked-bridge LLC converter with a Variable-Inverter-Rectifier-Transformer (VIRT) offers greater than 96% efficiency across the wide output voltage range. The design demonstrates the potential and trade-offs of a two-stage architecture at this operating power and illustrates the benefits of the utilized power stage topologies in achieving both small size and high efficiency over wide input- and output voltage ranges.https://ieeexplore.ieee.org/document/9051996/Two-stage chargervalley-switched boost converterLLC converterVariable-Inverter-Rectifier-Transformerfractional turnswide output voltage range |
| spellingShingle | Mike K. Ranjram Cheng Zhang David J. Perreault A Two-Stage Universal Input Charger With Wide Output Voltage Range IEEE Open Journal of Power Electronics Two-stage charger valley-switched boost converter LLC converter Variable-Inverter-Rectifier-Transformer fractional turns wide output voltage range |
| title | A Two-Stage Universal Input Charger With Wide Output Voltage Range |
| title_full | A Two-Stage Universal Input Charger With Wide Output Voltage Range |
| title_fullStr | A Two-Stage Universal Input Charger With Wide Output Voltage Range |
| title_full_unstemmed | A Two-Stage Universal Input Charger With Wide Output Voltage Range |
| title_short | A Two-Stage Universal Input Charger With Wide Output Voltage Range |
| title_sort | two stage universal input charger with wide output voltage range |
| topic | Two-stage charger valley-switched boost converter LLC converter Variable-Inverter-Rectifier-Transformer fractional turns wide output voltage range |
| url | https://ieeexplore.ieee.org/document/9051996/ |
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