A continuous switching mode step-down switched-capacitor regulator with inrush current control scheme
Switched-capacitor based regulator has its unique usage in various power management applications where both small foot print and flexible current capability is required since the switched-capacitor power stage is scalable with current rating and thus opens possibility of fully on-chip implementation...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/152164 |
| _version_ | 1811688528767090688 |
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| author | Yu, Chengyue Zhang, Xiang Siek, Liter |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Yu, Chengyue Zhang, Xiang Siek, Liter |
| author_sort | Yu, Chengyue |
| collection | NTU |
| description | Switched-capacitor based regulator has its unique usage in various power management applications where both small foot print and flexible current capability is required since the switched-capacitor power stage is scalable with current rating and thus opens possibility of fully on-chip implementation whereas inductor based regulator is very limited by inductor size due to the only availability of off-chip inductor that can be used by relatively low switching frequency regardless of current capability. Thus switched-capacitor based regulator is very suitable for IoT application, where multiple power rail is needed but PCB size is very limited and external components are limited. In this paper, a 1/2 step-down power stage is introduced, analyzed. Furthermore, problem with the phenomena associated with switched-capacitor regulators is described and the scheme to overcome the issue. A full regulator architecture that regulates the inrush current is introduced and simulation results shows that the output ripple is greatly reduced compared to an open loop step down switched-capacitor power stage. |
| first_indexed | 2024-10-01T05:33:39Z |
| format | Conference Paper |
| id | ntu-10356/152164 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:33:39Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1521642021-08-04T06:13:46Z A continuous switching mode step-down switched-capacitor regulator with inrush current control scheme Yu, Chengyue Zhang, Xiang Siek, Liter School of Electrical and Electronic Engineering 2016 International Symposium on Integrated Circuits (ISIC) Library VIRTUS, IC Design Centre of Excellence Engineering::Electrical and electronic engineering Switched-Capacitor Regulator Inrush Current Control Power Management Switched-capacitor based regulator has its unique usage in various power management applications where both small foot print and flexible current capability is required since the switched-capacitor power stage is scalable with current rating and thus opens possibility of fully on-chip implementation whereas inductor based regulator is very limited by inductor size due to the only availability of off-chip inductor that can be used by relatively low switching frequency regardless of current capability. Thus switched-capacitor based regulator is very suitable for IoT application, where multiple power rail is needed but PCB size is very limited and external components are limited. In this paper, a 1/2 step-down power stage is introduced, analyzed. Furthermore, problem with the phenomena associated with switched-capacitor regulators is described and the scheme to overcome the issue. A full regulator architecture that regulates the inrush current is introduced and simulation results shows that the output ripple is greatly reduced compared to an open loop step down switched-capacitor power stage. 2021-08-04T06:09:57Z 2021-08-04T06:09:57Z 2017 Conference Paper Yu, C., Zhang, X. & Siek, L. (2017). A continuous switching mode step-down switched-capacitor regulator with inrush current control scheme. 2016 International Symposium on Integrated Circuits (ISIC), 1-4. https://dx.doi.org/10.1109/ISICIR.2016.7829697 9781467390194 https://hdl.handle.net/10356/152164 10.1109/ISICIR.2016.7829697 2-s2.0-85013750668 1 4 en © 2016 IEEE. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Switched-Capacitor Regulator Inrush Current Control Power Management Yu, Chengyue Zhang, Xiang Siek, Liter A continuous switching mode step-down switched-capacitor regulator with inrush current control scheme |
| title | A continuous switching mode step-down switched-capacitor regulator with inrush current control scheme |
| title_full | A continuous switching mode step-down switched-capacitor regulator with inrush current control scheme |
| title_fullStr | A continuous switching mode step-down switched-capacitor regulator with inrush current control scheme |
| title_full_unstemmed | A continuous switching mode step-down switched-capacitor regulator with inrush current control scheme |
| title_short | A continuous switching mode step-down switched-capacitor regulator with inrush current control scheme |
| title_sort | continuous switching mode step down switched capacitor regulator with inrush current control scheme |
| topic | Engineering::Electrical and electronic engineering Switched-Capacitor Regulator Inrush Current Control Power Management |
| url | https://hdl.handle.net/10356/152164 |
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