FPGA BASED RIPPLE FREE ON TIME NON LINEAR DIGITAL PSM CONTROLLER FOR A SMPS
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Dec 19, 2018
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Abstract
This paper shows how to improve the efficiency of the digital pulse skipping modulation (DPSM) controller. The controller controls MOSFET switch of Switched mode power supply circuit (SMPS) with high switching frequency ranges from 50 kHz to 1MHz. The improved DPSM controller design exhibited in MATLAB Simulink and tested for the output stability. The Simulink model for digital PSM controller circuit is converted to VHDL coding and downloaded in Xilinx FPGA 3S250E/144 and is interfaced with the driver circuits to control the buck converter. Hardware of step down buck SMPS circuit is rated with 2A, 120W Maximum power. A closed loop model is tested in discontinuous mode. The converter is tested for two different loads such as inductive load and resistive load. Comparative analysis is done for two case studies.
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[4] Zhonghan shen, Na Yan, Hao Min, A multimode digitally controlled boost converter with PID auto tuning and constant frequency/Constant off time Hybrid PWM control, IEEE Transactions on Power Electronics, vol.26, no.9, pp. 2588-2598, September 2011
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[7] Ping Luo, Zhaoji Li, Bo Zhang, A novel improved PSM mode in DC-DC converter based on energy balance, IEEE Transactions on Education, March 2007
[8] Chengwu Tao, Ayman A.Fayed, A low noise PFM controlled buck converter for low power applications, IEEE Transactions on circuit and systems, vol. 59, no. 12, pp. 3071–3079, December 2012.
[9] Luo ping, Li Zhaoji, Fuzzy pulse skip modulation mode in DC-DC converter, IEEE Transactions , vol. 59, no. 12, December 2012
[10] Changhao Piao, Hongtao Qiao, Cong Teng.A, Digital control algorithm for Two-stage DC-DC converter, Energy Procedia –Science direct (2012) pp 265-271.
[11] Eftichios Kourtroulis, Apostolos Dollas, Kostas Kalaitzakis, High frequency pulse width modulation implementation using FPGA and CPLD ICs, Journal systems architecture, vol. 52, pp. 332-344, October 2006.
[12] Aleksandar Proctic, Dragon Maksimovic, Mixed simulation of digitally controlled switching converters, National semiconductor corporation, Colorado power electronic center
[13] Santanu Kapat, Amit Patra, Soumitro Baneerjee, Modeling and analysis of DC-DC converters under pulse skipping modulation, IEEE Transactions on circuit and systems, vol. 58, no. 8, pp. 1958–1966, August 2011.
[14] Abram P.Dancy, Anantha P.Chandrakesan, Ultra low power control circuits for PWM converters, IEEE Digital library, 1997
[15] R. Nazir, Taylor series expansion based repetitive controllers for power converters, subject to fractional delays, Control engineering practice 64,pp 140-147 published by Elsevier 2017
[16] Miro Milanovic, Mitja Truntic, Reconfigurable digital controller for a duck converter based on FPGA, Microelectronic Reliability, vol. 47, pp. 150-154, published by Elsevier 2007
[17] D.Alejo, P.Maussion, Multiple model control of a buck DC-DC converter, Mathematics and computer simulation 63, pp. 249-260.
[18] Zhonghan shen, Na Yan, A multimode digitally controlled boost converter with PID auto tuning and constant frequency/constant off time hybrid PWM control, IEEE Transactions on Power Electronics vol.26 no.9, pp. 2588-2598, September 2011
[19] R. Thangam, S. P. Joy vasantha Rani, Comparative analysis of PWM/PFM controlled SMPS using MATLAB Simulink, International Conference on Signal Processing, Communication and Networking, March 2017, publisher IEEE
[2] Yong Saeng shin,Chang seop kim,Sang kyoo Han, A pulse frequency modulated full bridge DC/DC converter with series boost converter, IEEE Transactions on Industrial Electronics vol. 58, no. 11, pp. 5154-5162, November 2011
[3] Hong Wei Huang, Ke Horng Chen and Sy Yen Kuo, Dithering skip modulation, width and dead time controllers in highly efficient DC-DC converters for system on chip Applications, International journal of solid state circuits, vol.42, no.11, pp. 2451-2465, November 2007
[4] Zhonghan shen, Na Yan, Hao Min, A multimode digitally controlled boost converter with PID auto tuning and constant frequency/Constant off time Hybrid PWM control, IEEE Transactions on Power Electronics, vol.26, no.9, pp. 2588-2598, September 2011
[5] B.W.K.Ling, C.Bingham, Combined optimal pulse width modulation and pulse frequency modulation strategy for controlling switched mode DC-DC converters over a wide range of loads, IET control theory and applications, vol.6, issue.13, pp. 1973-1983, October 2011
[6] Santanu Kapat, Amit Patra, Soumitro Baneerjee, Achieving monotonic variation of spectral composition in DC-DC converters using pulse skipping modulation, IEEE Transactions on circuit and systems, vol. 58, no. 8, pp. 1958–1966, August 2011.
[7] Ping Luo, Zhaoji Li, Bo Zhang, A novel improved PSM mode in DC-DC converter based on energy balance, IEEE Transactions on Education, March 2007
[8] Chengwu Tao, Ayman A.Fayed, A low noise PFM controlled buck converter for low power applications, IEEE Transactions on circuit and systems, vol. 59, no. 12, pp. 3071–3079, December 2012.
[9] Luo ping, Li Zhaoji, Fuzzy pulse skip modulation mode in DC-DC converter, IEEE Transactions , vol. 59, no. 12, December 2012
[10] Changhao Piao, Hongtao Qiao, Cong Teng.A, Digital control algorithm for Two-stage DC-DC converter, Energy Procedia –Science direct (2012) pp 265-271.
[11] Eftichios Kourtroulis, Apostolos Dollas, Kostas Kalaitzakis, High frequency pulse width modulation implementation using FPGA and CPLD ICs, Journal systems architecture, vol. 52, pp. 332-344, October 2006.
[12] Aleksandar Proctic, Dragon Maksimovic, Mixed simulation of digitally controlled switching converters, National semiconductor corporation, Colorado power electronic center
[13] Santanu Kapat, Amit Patra, Soumitro Baneerjee, Modeling and analysis of DC-DC converters under pulse skipping modulation, IEEE Transactions on circuit and systems, vol. 58, no. 8, pp. 1958–1966, August 2011.
[14] Abram P.Dancy, Anantha P.Chandrakesan, Ultra low power control circuits for PWM converters, IEEE Digital library, 1997
[15] R. Nazir, Taylor series expansion based repetitive controllers for power converters, subject to fractional delays, Control engineering practice 64,pp 140-147 published by Elsevier 2017
[16] Miro Milanovic, Mitja Truntic, Reconfigurable digital controller for a duck converter based on FPGA, Microelectronic Reliability, vol. 47, pp. 150-154, published by Elsevier 2007
[17] D.Alejo, P.Maussion, Multiple model control of a buck DC-DC converter, Mathematics and computer simulation 63, pp. 249-260.
[18] Zhonghan shen, Na Yan, A multimode digitally controlled boost converter with PID auto tuning and constant frequency/constant off time hybrid PWM control, IEEE Transactions on Power Electronics vol.26 no.9, pp. 2588-2598, September 2011
[19] R. Thangam, S. P. Joy vasantha Rani, Comparative analysis of PWM/PFM controlled SMPS using MATLAB Simulink, International Conference on Signal Processing, Communication and Networking, March 2017, publisher IEEE