A fixed-frequency hysteretic buck converter with novel adaptive window control and transient response improvement
This study presents a fixed-frequency hysteretic buck converter designed and fabricated using 0.18-µm complementary metal–oxide–semiconductor process. With a phase-locked loop (PLL)-based adaptive window control, the proposed buck converter can achieve a fixed switching frequency, and this frequency...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/152449 |
| _version_ | 1826118483091390464 |
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| author | Jia, Meng Sun, Zhuochao Siek, Liter |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Jia, Meng Sun, Zhuochao Siek, Liter |
| author_sort | Jia, Meng |
| collection | NTU |
| description | This study presents a fixed-frequency hysteretic buck converter designed and fabricated using 0.18-µm complementary metal–oxide–semiconductor process. With a phase-locked loop (PLL)-based adaptive window control, the proposed buck converter can achieve a fixed switching frequency, and this frequency can be tuned within a certain range through a reference clock frequency. Concurrently, a novel auxiliary circuit is proposed to monitor the converter's output loading dynamics to reduce the converter's transient recovery time. It will also help to regulate the output voltage at the steady-state operation as well. With the supply voltage ranging from 3 to 4.2 V and an output voltage of 1.8 V, the simulated switching frequency is maintained at 10 MHz because of the PLL control. The transient response time is only 0.3 and 0.4 µs for a 400 mA step-up load and step-down load, respectively. |
| first_indexed | 2024-10-01T04:44:09Z |
| format | Journal Article |
| id | ntu-10356/152449 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:44:09Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1524492021-08-23T07:48:28Z A fixed-frequency hysteretic buck converter with novel adaptive window control and transient response improvement Jia, Meng Sun, Zhuochao Siek, Liter School of Electrical and Electronic Engineering VIRTUS, IC Design Centre of Excellence Engineering::Electrical and electronic engineering Buck DC-DC Converter Fixed-Frequency Hysteretic Buck Converter This study presents a fixed-frequency hysteretic buck converter designed and fabricated using 0.18-µm complementary metal–oxide–semiconductor process. With a phase-locked loop (PLL)-based adaptive window control, the proposed buck converter can achieve a fixed switching frequency, and this frequency can be tuned within a certain range through a reference clock frequency. Concurrently, a novel auxiliary circuit is proposed to monitor the converter's output loading dynamics to reduce the converter's transient recovery time. It will also help to regulate the output voltage at the steady-state operation as well. With the supply voltage ranging from 3 to 4.2 V and an output voltage of 1.8 V, the simulated switching frequency is maintained at 10 MHz because of the PLL control. The transient response time is only 0.3 and 0.4 µs for a 400 mA step-up load and step-down load, respectively. Agency for Science, Technology and Research (A*STAR) Nanyang Technological University Published version The author would like to acknowledge MediaTek Singapore Limited and EDB Singapore for JIP scholarship, and funding support from NTU-A*STAR Silicon Technologies Centre of Excellence under the program grant no. 11235100003. 2021-08-23T07:48:28Z 2021-08-23T07:48:28Z 2019 Journal Article Jia, M., Sun, Z. & Siek, L. (2019). A fixed-frequency hysteretic buck converter with novel adaptive window control and transient response improvement. The Journal of Engineering, 2019(7), 4667-4671. https://dx.doi.org/10.1049/joe.2018.5293 2051-3305 https://hdl.handle.net/10356/152449 10.1049/joe.2018.5293 7 2019 4667 4671 en 11235100003. The Journal of Engineering © 2019 IET. This is an open access article published by the IET under the Creative Commons Attribution-NonCommercial-NoDerivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/) application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering Buck DC-DC Converter Fixed-Frequency Hysteretic Buck Converter Jia, Meng Sun, Zhuochao Siek, Liter A fixed-frequency hysteretic buck converter with novel adaptive window control and transient response improvement |
| title | A fixed-frequency hysteretic buck converter with novel adaptive window control and transient response improvement |
| title_full | A fixed-frequency hysteretic buck converter with novel adaptive window control and transient response improvement |
| title_fullStr | A fixed-frequency hysteretic buck converter with novel adaptive window control and transient response improvement |
| title_full_unstemmed | A fixed-frequency hysteretic buck converter with novel adaptive window control and transient response improvement |
| title_short | A fixed-frequency hysteretic buck converter with novel adaptive window control and transient response improvement |
| title_sort | fixed frequency hysteretic buck converter with novel adaptive window control and transient response improvement |
| topic | Engineering::Electrical and electronic engineering Buck DC-DC Converter Fixed-Frequency Hysteretic Buck Converter |
| url | https://hdl.handle.net/10356/152449 |
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