A high efficiency synchronous buck converter with adaptive dead-time control
An adaptive inverter-based dead-time controller for synchronous DC-DC converter is proposed. With this controller, the switching time is precisely controlled and thus simultaneously eliminates the power losses caused by body-diode conduction, power-stage shoot-through current and inductor reverse cu...
| 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/10356/152165 |
| _version_ | 1826123471213559808 |
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| author | Zhou, Mi Low, Qiongwei Siek, Liter |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Zhou, Mi Low, Qiongwei Siek, Liter |
| author_sort | Zhou, Mi |
| collection | NTU |
| description | An adaptive inverter-based dead-time controller for synchronous DC-DC converter is proposed. With this controller, the switching time is precisely controlled and thus simultaneously eliminates the power losses caused by body-diode conduction, power-stage shoot-through current and inductor reverse current. A pair of inverters are used to replace the high speed comparators in this controller for even faster comparison. In addition, the proposed two-step (coarse and fine tuning) dynamic delay generator in this controller helps to achieve more accurate switching time with wider dead-time correction range. The controller can be incorporated into different converter topologies with a wide load range. In this paper, a voltage-mode buck converter with the proposed adaptive dead-time controller has been designed using 0.18 μm CMOS process. Simulation results show precisely controlled switching time under different loading conditions, and a 96% peak conversion efficiency can be achieved with the proposed technique. |
| first_indexed | 2024-10-01T06:04:54Z |
| format | Conference Paper |
| id | ntu-10356/152165 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:04:54Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1521652021-08-04T08:27:35Z A high efficiency synchronous buck converter with adaptive dead-time control Zhou, Mi Low, Qiongwei Siek, Liter School of Electrical and Electronic Engineering 2016 International Symposium on Integrated Circuits (ISIC) VIRTUS, IC Design Centre of Excellence Engineering::Electrical and electronic engineering Dead-time Controller Dynamic Delay Generator Voltage-mode Control High Efficient DC-DC Converter An adaptive inverter-based dead-time controller for synchronous DC-DC converter is proposed. With this controller, the switching time is precisely controlled and thus simultaneously eliminates the power losses caused by body-diode conduction, power-stage shoot-through current and inductor reverse current. A pair of inverters are used to replace the high speed comparators in this controller for even faster comparison. In addition, the proposed two-step (coarse and fine tuning) dynamic delay generator in this controller helps to achieve more accurate switching time with wider dead-time correction range. The controller can be incorporated into different converter topologies with a wide load range. In this paper, a voltage-mode buck converter with the proposed adaptive dead-time controller has been designed using 0.18 μm CMOS process. Simulation results show precisely controlled switching time under different loading conditions, and a 96% peak conversion efficiency can be achieved with the proposed technique. Agency for Science, Technology and Research (A*STAR) Economic Development Board (EDB) The authors would like to acknowledge the funding support from NTU-A*STAR Silicon Technologies Centre of Excellence under the program grant No. 11235100003 2021-08-04T08:26:44Z 2021-08-04T08:26:44Z 2017 Conference Paper Zhou, M., Low, Q. & Siek, L. (2017). A high efficiency synchronous buck converter with adaptive dead-time control. 2016 International Symposium on Integrated Circuits (ISIC), 1-4. https://dx.doi.org/10.1109/ISICIR.2016.7829749 9781467390194 https://hdl.handle.net/10356/152165 10.1109/ISICIR.2016.7829749 2-s2.0-85013781365 1 4 en 11235100003 © 2016 IEEE. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Dead-time Controller Dynamic Delay Generator Voltage-mode Control High Efficient DC-DC Converter Zhou, Mi Low, Qiongwei Siek, Liter A high efficiency synchronous buck converter with adaptive dead-time control |
| title | A high efficiency synchronous buck converter with adaptive dead-time control |
| title_full | A high efficiency synchronous buck converter with adaptive dead-time control |
| title_fullStr | A high efficiency synchronous buck converter with adaptive dead-time control |
| title_full_unstemmed | A high efficiency synchronous buck converter with adaptive dead-time control |
| title_short | A high efficiency synchronous buck converter with adaptive dead-time control |
| title_sort | high efficiency synchronous buck converter with adaptive dead time control |
| topic | Engineering::Electrical and electronic engineering Dead-time Controller Dynamic Delay Generator Voltage-mode Control High Efficient DC-DC Converter |
| url | https://hdl.handle.net/10356/152165 |
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