Design, Simulation and Application of Buck Converter with Digital PI Controller

Year 2021, Volume: 9 Issue: 2, 106 - 113, 30.04.2021

Hasan Sucu Taner Göktaş , Müslüm Arkan

https://doi.org/10.17694/bajece.884290

Cited By: 2

Abstract

In this paper, a dc-dc buck converter with digital PI-controlled is analyzed and designed considering all design parameters such as inductance current variation, output voltage ripple etc. The designed dc-dc buck converter provides stable output voltage against to load changes and output voltage variations. Buck converter control method relies on voltage mode controlled PWM (Pulse width Modulation) with digital PI (Proportional Integral) controller. The design criteria, operating mode selection, suitable material selection, etc. of low cost and high-performance buck converter are explained in detail. Finally, the designed converter is carried out experimentally and the experimental results shows the effectiveness of designed converter under different load profiles.

Keywords

Buck Converter, PWM, PI Controller

References

• [1] A. A. A. Ismail and A. Elnady, "Advanced Drive System for DC Motor Using Multilevel DC/DC Buck Converter Circuit," in IEEE Access, vol. 7, pp. 54167-54178, 2019.
• [2] S. Kamat and S. Jadhav, "Design and Simulation of Low Power Charging Station for Electric Vehicle," 2019 International Conference on Advances in Computing, Communication and Control (ICAC3), Mumbai, India, 2019, pp. 1-4.
• [3] K. Hu, Y. Chen, H. Lin and C. Tsai, "Digital Buck Converter with Adaptive Driving Circuit for Cascode Power MOS," 2018 IEEE 7th Global Conference on Consumer Electronics (GCCE), Nara, 2018, pp. 126-127.
• [4] R. T. Yadlapalli and A. Kotapati, "Efficieny analysis of Quadratic buck converter for LED lamp driver applications," 2017 International Conference on Trends in Electronics and Informatics (ICEI), Tirunelveli, 2017, pp. 210-214.
• [5] N. Rigogiannis et al., "Experimental Investigation of a Digitally Current Controlled Synchronous Buck DC/DC Converter for Microgrids Applications," 2019 Panhellenic Conference on Electronics & Telecommunications (PACET), Volos, Greece, 2019, pp. 1-5.
• [6] A. A. Patil, et al,, "Output voltage control scheme for standalone wind energy system," 2016 Int. Conf. on Computation of Power, Energy Information and Com. Chennai, 2016, pp. 534-541.
• [7] K. Pal and M. Pattnaik, "Performance of a Synchronous Buck Converter for a Standalone PV System: an Experimental Study," 2019 IEEE 1st International Conference on Energy, Systems and Information Processing (ICESIP), Chennai, India, 2019, pp. 1-6.
• [8] C. Fei, M. H. Ahmed, F. C. Lee and Q. Li, "Two-Stage 48 V-12 V/6 V-1.8 V Voltage Regulator Module With Dynamic Bus Voltage Control for Light-Load Efficiency Improvement," in IEEE Transactions on Power Electronics, vol. 32, no. 7, pp. 5628-5636, July 2017.
• [9] Y. Chen, J. Chen and D. Lai, "Dual mode digital buck converter controller without current sensor," 2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES), Hamilton, 2018, pp. 118-123.
• [10] J. Yu, I. Hwang and N. Kim, "High performance CMOS integrated PWM/PFM dual-mode DC-DC buck converter," 18th Int. Scientific Conf. on Electric Power Engineering (EPE), Kouty nad Desnou, 2017, pp. 1-4.
• [11] Y. Moursy, R. Khalil, S. Lecce, V. Poletto, R. Iskander and M. Louërat, "Mixed-signal PI controller in current-mode DC-DC buck converter for automotive applications," 2016 IEEE International Symposium on Circuits and Systems (ISCAS), Montreal, QC, 2016, pp. 1610-1613.
• [12] A. Platon, S. Oprea, A. Florescu and S. G. Rosu, "Simple and Digital Implementation of PI Controller Used in Voltage-Mode Control," 2018 10th International Conference on Electronics, Computers and Artificial Intelligence (ECAI), Iasi, Romania, 2018, pp. 1-6.
• [13] Q. Huang, C. Zhan and J. Burm, "A 4-MHz Digitally Controlled Voltage-Mode Buck Converter With Embedded Transient Improvement Using Delay Line Control Techniques," in IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 67, no. 11, pp. 4029-4040, Nov. 2020.
• [14] Y. Yan, A. Shehada, A. R. Beig and I. Boiko, "Auto-Tuning of PID Controller with Phase Margin Specification for Digital Voltage-Mode Buck Converter," 2020 IEEE Conference on Control Technology and Applications (CCTA), Montreal, QC, Canada, 2020, pp. 801-806.
• [15] P. Suskis and D. Nikonorov, "Buck Converter Digital Control System Design and Performance Evaluation," 2018 IEEE 6th Workshop on Advances in Information, Electronic and Electrical Engineering (AIEEE), Vilnius, 2018, pp. 1-4.
• [16] M. Deshmukh and M. K. Namboothiripad, "DSP BasedSecond Order Sliding Mode Controller for Buck Converter," 2018 3rd International Conference for Convergence in Technology (I2CT), Pune, 2018, pp. 1-5.
• [17] M. K. Asy’ari, A. Musyafa’ and K. Indriawati, "Design of Wind Turbine Output Voltage Control Systems in Multi-Input Buck Converter Using Fuzzy Logic Control for Battery Charging," 2019 Int. Conference on Advanced Mechatronics, Intelligent Manufacture and Industrial Automation (ICAMIMIA), Batu, Malang, Indonesia, 2019, pp. 249-252.
• [18] S. Seshagiri, E. Block, I. Larrea and L. Soares, "Optimal PID design for voltage mode control of DC-DC buck converters," 2016 Indian Control Conference (ICC), Hyderabad, 2016, pp. 99-104.
• [19] S. Ghosh, S. Satpathy, S. Das, S. Debbarma and B. K. Bhattacharyya, "Different Controlling Method of Closed Loop DC-DC Buck Converter: A review," 2018 International Conference on Smart Systems and Inventive Technology (ICSSIT), Tirunelveli, India, 2018, pp. 29-33.
• [20] M. M. Garg, Y. V. Hote, M. K. Pathak and L. Behera, "An Approach for Buck Converter PI Controller Design Using Stability Boundary Locus," 2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D), Denver, CO, 2018, pp. 1-5.
• [21] Daniel W. Hart., “Power Electronics”, McGraw-Hill, New York-Americas, 2011.
• [22] B. Yuan, J. Ying, W. T. Ng, X. Lai and L. Zhang, "A High-Voltage DC–DC Buck Converter With Dynamic Level Shifter for Bootstrapped High-Side Gate Driver and Diode Emulator," in IEEE Transactions on Power Electronics, vol. 35, no. 7, pp. 7295-7304, July 2020.
• [23] Design and Evaluation of A High-Current Gate Driver Circuit for Six Paralleled 1.2kV 36A SiC MOSFETs.
• [24] “UCC27211A-Q1 120V Boot, 4A Peak, High Frequency High Side and Low Side Driver,” SLUSCG0A datasheet, 2015.
• [25] MH Rashid, “Power Electronics Circuits, Devices and Applications”, 3rd Ed.,Prentice-Hall, 2003, pp 761~789.
• [26] Fairchild Application Note AN-6076 : Design and Application Guide of Bootstrap Circuit for High Voltage Gate Drive IC.