A New Control Scheme for the Buck Converter
Source abstract
Abstract
In this paper, a new control scheme for buck converters was proposed. The buck converter utilizes the dual control loop to improve transient response and has the constant switching frequency. The control scheme is mainly as follows: (a) The switch-ON time is regulated by the constant frequency mechanism. (b) The switch-OFF time is regulated by the output voltage. The spec/features of the proposed converter are listed as: (1) The buck converter has an output of 1.0–2.5 V for the input of 3.0–3.6 V. The load current ranges from 100 mA to 500 mA. (2) The actual current sensor is not required. (3) The simulation results show that the recovery time is less than 1.6 μs during load changes. (4) The variation in switching frequency is smaller than 1.05% over the output range of 1.0–2.5 V. (5) This circuit can be fabricated in future by UMC 0.18 μm 1P6M CMOS processes. This paper depicts the control scheme, theoretical analysis, and implementation.
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Research context
OpenAlex topics: Advanced DC-DC Converters · Analog and Mixed-Signal Circuit Design · Advanced Battery Technologies Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Computer Science and Information Engineering, National Taichung University of Science and Technology, Taichung 404336, Taiwan
Department of Communication Engineering, National Penghu University of Science and Technology, Penghu, Magong City 880011, Taiwan
Department of Electronic Engineering, National Chin-Yi University of Technology, Taichung 411030, Taiwan
References (28)
Show source-provided references
1. Sub-1-V Fast-Response Hysteresis-Controlled CMOS Buck Converter Using Adaptive Ramp Techniques10.1109/TVLSI.2012.2218263 ↗
2. A New Fast-Response Current-Mode Buck Converter With Improved I2 -Controlled Techniques10.1109/TVLSI.2018.2796088 ↗
3. An Improved Optimum-Damping Current-Mode Buck Converter with Fast-Transient Response and Small-Transient Voltage using New Current Sensing Circuits10.1109/TIE.2020.3020030 ↗
4. Souza, A.F., Tofoli, F.L., and Ribeiro, E.R. (2021). Switched Capacitor DC-DC Converters: A Survey on the Main Topologies, Design Characteristics, and Applications. Energies, 14.10.3390/en14082231 ↗
5. Analysis and Optimization of Switched-Capacitor DC–DC Converters10.1109/TPEL.2007.915182 ↗
6. Deepa, K., Saju, H., and Kumar, M. (2013, January 13–15). Soft switched flyback converter for smps applications. Proceedings of the 2013 International Conference on Control Communication and Computing (ICCC), Thiruvananthapuram, India.10.1109/ICCC.2013.6731701 ↗
7. Aharon, I., Kuperman, A., Aharon, I., and Shmilovitz, D. (2013, January 10–13). Analysis of Bi-Directional Buck-Boost Converter for Energy Storage Applications. Proceedings of the IECON 2013—39th Annual Conference of the IEEE Industrial Electronics Society, Vienna, Austria.10.1109/IECON.2013.6699246 ↗
8. Two-Stage Isolated Switch-Mode Power Supply with High Efficiency and High Input Power Factor10.1109/TIE.2010.2041735 ↗
9. Seeman, M.D., Ng, V.W., Le, H.-P., John, M., Alon, E., and Sanders, S.R. (2010, January 28–30). A comparative analysis of Switched-Capacitor and inductor-based DC-DC conversion technologies. Proceedings of the 2010 IEEE 12th Workshop on Control and Modeling for Power Electronics (COMPEL), Boulder, CO, USA.10.1109/COMPEL.2010.5562407 ↗
10. A 30-MHz Voltage-Mode Buck Converter Using Delay-Line-Based PWM Control
11. A Current-Mode-Hysteretic Buck Converter with Constant-Frequency-Controlled and New Active-Current-Sensing Techniques10.1109/TPEL.2020.3017809 ↗
12. A Dead-Beat-Controlled Fast-Transient-Response Buck Converter With Active Pseudo-Current-Sensing Techniques10.1109/TVLSI.2019.2908875 ↗
13. Designing a Dynamic Ramp With an Invariant Inductor in Current-Mode Control for an On-Chip Buck Converter10.1109/TPEL.2013.2256151 ↗
14. Saini, D.K., Reatti, A., and Kazimierczuk, M.K. (2016, January 23–26). Average Current-Mode Control of Buck DC-DC Converter with Reduced Control Voltage Ripple. Proceedings of the 42nd Annual Conference of the IEEE Industrial Electronics Society, Florence, Italy.10.1109/IECON.2016.7793204 ↗
15. Chou, H.-H., Chen, H.-L., Fan, Y.-H., and Wang, S.-F. (2021). Adaptive On-Time Control Buck Converter with a Novel Virtual Inductor Current Circuit. Electronics, 10.10.3390/electronics10172143 ↗
16. Zhong, S., and Shen, Z. (2021). A Hybrid Constant On-Time Mode for Buck Circuits. Electronics, 10.10.3390/electronics10080930 ↗
17. A Novel Adaptive Quasi-Constant On-Time Current-Mode Buck Converter10.1109/TPEL.2016.2633760 ↗
18. Liu, P.-J., and Kuo, M.-H. (2021). Adaptive On-Time Buck Converter with Wave Tracking Reference Control for Output Regulation Accuracy. Energies, 14.10.3390/en14133809 ↗
19. A New Fast Adaptive On-Time Control for Transient Response Improvement in Constant On-Time Control10.1109/TPEL.2017.2693382 ↗
20. Chou, H.-H., Luo, W.-H., Chen, H.-L., and Wang, S.-F. (2022). A Novel Buck Converter with Dual Loops Control Mechanism. Electronics, 11.10.3390/electronics11081256 ↗
21. Chou, H.-H., Luo, W.-H., and Wang, S.-F. (2022). Design of the Buck Converter without Inductor Current Sensor. Electronics, 11.10.3390/electronics11091484 ↗
22. Chou, H.-H., and Chen, H.-L. (2021). A Novel Buck Converter with Constant Frequency Controlled Technique. Energies, 14.10.3390/en14185911 ↗
23. Zhen, S., Zeng, P., Chen, J., Zhou, W., Wang, J., Luo, P., and Zhang, B. (2018, January 5–8). Transient Response Improvement of DC-DC Converter by Current Mode Variable on Time Control. Proceedings of the 2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS), Windsor, ON, Canada.10.1109/MWSCAS.2018.8623868 ↗
24. A high performance adaptive on-time controlled valley-current-mode DCDC buck converter10.1088/1674-4926/41/6/062402 ↗
25. A Current-Mode Hysteretic Buck Converter With Multiple-Reset RC-Based Inductor Current Sensor10.1109/TIE.2018.2889613 ↗
26. A High-Efficiency Fast Transient COT Control DC–DC Buck Converter With Current Reused Current Sensor10.1109/TPEL.2021.3052198 ↗
27. Jeon, I., Min, K., Park, J., Roh, J., Moon, D.-J., and Kim, H.-R. (2021, January 6–9). A Constant On-Time Buck Converter with Fully Integrated Average Current Sensing Scheme. Proceedings of the 2021 18th ISOCC, Jeju Island, Republic of Korea.10.1109/ISOCC53507.2021.9613849 ↗
28. A New Improved Ultra-Fast-Response Low-Transient-Voltage Buck Converter With Transient-Acceleration Loops and V-Cubic Techniques10.1109/ACCESS.2022.3140279 ↗