Fast-transient integrated digital DC-DC converter with predictive and feedforward control
This paper introduces a dual-mode digital dc-dc converter combining the predictive and feedforward control with the conventional PID controller to achieve fast transient response and low overshoot. An additional predictive or jerk component is added to the conventional PID controller to speed up the...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/95957 http://hdl.handle.net/10220/11319 |
| _version_ | 1811695160317181952 |
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| author | Foong, Huey Chian Zheng, Yuanjin Tan, Yen Kheng Tan, Meng Tong |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Foong, Huey Chian Zheng, Yuanjin Tan, Yen Kheng Tan, Meng Tong |
| author_sort | Foong, Huey Chian |
| collection | NTU |
| description | This paper introduces a dual-mode digital dc-dc converter combining the predictive and feedforward control with the conventional PID controller to achieve fast transient response and low overshoot. An additional predictive or jerk component is added to the conventional PID controller to speed up the transient response and reduce the settling time by approximately 50%. This predictive term is based on the second derivative of the error signal and introduces zero to the loop response which leads to increased bandwidth and improved phase margin. In addition, a feedforward control is also employed to further improve the transient by evaluating the change in the inductor current during the on and off time of the power transistors. Theoretical analysis and simulations were carried out to analyze the proposed design and algorithm. The proposed design is verified on silicon with a prototype of a digital dc-dc converter fabricated in CMOS 0.18 μ m process. The digital dc-dc converter achieved a settling time of 4 μs and an overshoot of 15 mV for a step-load transient of 450 mA, which are improved significantly as compared to the prior arts. |
| first_indexed | 2024-10-01T07:19:03Z |
| format | Journal Article |
| id | ntu-10356/95957 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:19:03Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/959572020-03-07T14:02:45Z Fast-transient integrated digital DC-DC converter with predictive and feedforward control Foong, Huey Chian Zheng, Yuanjin Tan, Yen Kheng Tan, Meng Tong School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering This paper introduces a dual-mode digital dc-dc converter combining the predictive and feedforward control with the conventional PID controller to achieve fast transient response and low overshoot. An additional predictive or jerk component is added to the conventional PID controller to speed up the transient response and reduce the settling time by approximately 50%. This predictive term is based on the second derivative of the error signal and introduces zero to the loop response which leads to increased bandwidth and improved phase margin. In addition, a feedforward control is also employed to further improve the transient by evaluating the change in the inductor current during the on and off time of the power transistors. Theoretical analysis and simulations were carried out to analyze the proposed design and algorithm. The proposed design is verified on silicon with a prototype of a digital dc-dc converter fabricated in CMOS 0.18 μ m process. The digital dc-dc converter achieved a settling time of 4 μs and an overshoot of 15 mV for a step-load transient of 450 mA, which are improved significantly as compared to the prior arts. 2013-07-12T05:59:42Z 2019-12-06T19:23:43Z 2013-07-12T05:59:42Z 2019-12-06T19:23:43Z 2012 2012 Journal Article Foong, H. C., Zheng, Y., Tan, Y. K., & Tan, M. T. (2012). Fast-Transient Integrated Digital DC-DC Converter With Predictive and Feedforward Control. IEEE Transactions on Circuits and Systems I: Regular Papers, 59(7), 1567-1576. 1549-8328 https://hdl.handle.net/10356/95957 http://hdl.handle.net/10220/11319 10.1109/TCSI.2011.2177012 en IEEE transactions on circuits and systems I : regular papers © 2012 IEEE. |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering Foong, Huey Chian Zheng, Yuanjin Tan, Yen Kheng Tan, Meng Tong Fast-transient integrated digital DC-DC converter with predictive and feedforward control |
| title | Fast-transient integrated digital DC-DC converter with predictive and feedforward control |
| title_full | Fast-transient integrated digital DC-DC converter with predictive and feedforward control |
| title_fullStr | Fast-transient integrated digital DC-DC converter with predictive and feedforward control |
| title_full_unstemmed | Fast-transient integrated digital DC-DC converter with predictive and feedforward control |
| title_short | Fast-transient integrated digital DC-DC converter with predictive and feedforward control |
| title_sort | fast transient integrated digital dc dc converter with predictive and feedforward control |
| topic | DRNTU::Engineering::Electrical and electronic engineering |
| url | https://hdl.handle.net/10356/95957 http://hdl.handle.net/10220/11319 |
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