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Journal articles on the topic 'DC-DC buck'

Author: Grafiati
Published: 9 March 2023
Last updated: 10 March 2023

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1

Cipriano dos Santos Júnior, Euzeli. "Dual-output DC-DC buck converter." Eletrônica de Potência 17, no. 1 (February 1, 2012): 474–82. http://dx.doi.org/10.18618/rep.2012.1.474482.

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2

Gürel, Seyfettin, and Sezai Alper Tekin. "Bulk Switched DC-DC Buck Converter." Energy, Environment and Storage 2, no. 2 (May 17, 2022): 31–40. http://dx.doi.org/10.52924/bcmq4493.

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This paper presents a buck converter which has an high efficient and low power consumption for low power applications. The proposed topology is based on buck converter using switching MOSFET with bulk-terminal. The suitable bulk-terminal switching voltage is selected by analyzing the effect of bulk voltage on a MOSFET performance. It is concluded that the bulk-switched DC-DC buck converter structure has the advantages such as high switching performance, low power consumption and high efficiency compared to conventional DC-DC converter circuits. The efficiency value has obtained 88.2%. The proposed circuit is approved experimentally and simultaneously
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3

Hwang, In Hwan, In Soo Lee, and Kwang Tae Kim. "High Efficiency 5A Synchronous DC-DC Buck Converter." Journal of Korea Multimedia Society 19, no. 2 (February 28, 2016): 352–59. http://dx.doi.org/10.9717/kmms.2016.19.2.352.

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4

Birca-Galateanu, S. "Buck-flyback DC-DC converter." IEEE Transactions on Aerospace and Electronic Systems 24, no. 6 (1988): 800–807. http://dx.doi.org/10.1109/7.18647.

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5

Ícaro T. Nogueira, Paulo, André Schlingmann, Lenon Schmitz, Denizar Cruz Martins, and Roberto Francisco Coelho. "SYMMETRIC DIFFERENTIAL DC-DC BUCK-BOOST CONVERTER." Eletrônica de Potência 26, no. 2 (May 11, 2021): 1–11. http://dx.doi.org/10.18618/rep.2021.2.0049.

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6

Kang, Min Gu. "A Comparison of DC-DC Buck Converter Controller." Journal of the Institute of Electronics and Information Engineers 50, no. 7 (July 25, 2013): 281–85. http://dx.doi.org/10.5573/ieek.2013.50.7.281.

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7

Besekar, Nikita Prashant. "DC-DC Converters Topology." Journal of Image Processing and Intelligent Remote Sensing, no. 32 (February 8, 2023): 11–21. http://dx.doi.org/10.55529/jipirs.32.11.21.

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In this paper the various perspectives on different dc-dc converters are reviewed . The various advantages and disadvantages of both Converter topologies that are classical and recent converters and overview of dc micro grid are discussed. From the data we found that every Converter has some advantages and disadvantages also but the Buck, Boost, Cuk and zeta Converter have less ripple. And Buck and Boost has the best efficiency as per cost. The dc micro grid has lots of advantages over AC microgrids; they can perform reliable operation, higher efficiency, low power loss and no skin effect. Theoretical and practical implications were discussed. Advanced dc converters are also reviewed.
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8

CORCAU, Jenica-Ileana, and Liviu DINCA. "FUZZY LOGIC CONTROL FOR A DC TO DC BUCK CONVERTER." SCIENTIFIC RESEARCH AND EDUCATION IN THE AIR FORCE 18, no. 1 (June 24, 2016): 233–38. http://dx.doi.org/10.19062/2247-3173.2016.18.1.31.

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9

Hernández-Márquez, Eduardo, José Rafael García-Sánchez, Ramón Silva-Ortigoza, Mayra Antonio-Cruz, Victor Manuel Hernández-Guzmán, Hind Taud, and Mariana Marcelino-Aranda. "Bidirectional Tracking Robust Controls for a DC/DC Buck Converter-DC Motor System." Complexity 2018 (August 23, 2018): 1–10. http://dx.doi.org/10.1155/2018/1260743.

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Two differential flatness-based bidirectional tracking robust controls for a DC/DC Buck converter-DC motor system are designed. To achieve such a bidirectional tracking, an inverter is used in the system. First control considers the complete dynamics of the system, that is, it considers the DC/DC Buck converter-inverter-DC motor connection as a whole. Whereas the second separates the dynamics of the Buck converter from the one of the inverter-DC motor, so that a hierarchical controller is generated. The experimental implementation of both controls is performed via MATLAB-Simulink and a DS1104 board in a built prototype of the DC/DC Buck converter-inverter-DC motor connection. Controls show a good performance even when system parameters are subjected to abrupt uncertainties. Thus, robustness of such controls is verified.
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10

Aditama, Ridha D. N., Naqita Ramadhani, Jihad Furqani, Arwindra Rizqiawan, and Pekik Argo Dahono. "New bidirectional step-up DC-DC converter derived from buck- boost DC-DC converter." International Journal of Power Electronics and Drive Systems (IJPEDS) 12, no. 3 (September 1, 2021): 1699. http://dx.doi.org/10.11591/ijpeds.v12.i3.pp1699-1707.

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<span lang="EN-US">This paper proposes a new bidirectional step-up DC-DC converter, namely modified buck-boost DC-DC converter. The proposed DC-DC converter was derived from the conventional buck-boost DC-DC converter. Output voltage expression of the proposed converter was derived by considering the voltage drops across inductors and switching devices. The results have shown that with the same parameter of input LC filter, proposed DC-DC converter has lower conduction losses. Moreover, the proposed DC-DC converter has lower rated voltage of filter capacitor than the conventional boost DC-DC converter which lead to cost efficiency. Finally, a scaled-down prototype of laboratory experiment was used to verify its theoretical analysis.</span>
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11

M. Alturas, Ahmed, Abdulmajed O. Elbkosh, and Othman Imrayed. "STABILITY ANALYSIS OF DC-DC BUCK CONVERTERS." Acta Electronica Malaysia 4, no. 1 (February 5, 2020): 01–06. http://dx.doi.org/10.26480/aem.01.2020.01.06.

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This paper is focusing on the stability analysis of the voltage mode control buck converter controlled by pulse-width modulation (PWM). Using two different approaches, the nonlinear phenomena are investigated in two terms, slow scale and fast scale bifurcation. A complete design-oriented approach for studying the stability of dc-dc power converters and its bifurcation has been introduced. The voltage waveforms and attractors obtained from the circuit simulation have been studied. With the onset of instability, the phenomenon of subharmonics oscillations, quasi-periodicity, bifurcations, and chaos have been observed
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12

Watanabe, K., T. Hayashida, and A. Kawashima. "Buck/boost DC/DC converters using nMOSFETs." Electronics Letters 31, no. 12 (June 8, 1995): 933–34. http://dx.doi.org/10.1049/el:19950651.

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13

Andrade, Miguel, and Vitor Costa. "DC-DC Buck Converter with Reduced Impact." Procedia Technology 17 (2014): 791–98. http://dx.doi.org/10.1016/j.protcy.2014.10.209.

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14

Tsang, K. M., and W. L. Chan. "Cascade controller for DC∕DC buck convertor." IEE Proceedings - Electric Power Applications 152, no. 4 (2005): 827. http://dx.doi.org/10.1049/ip-epa:20045198.

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15

Vali, Shaik Hussain. "Modeling of Buck ZVS Multiresonant DC-DC Converter Using Bond Graphs." Revista Gestão Inovação e Tecnologias 11, no. 4 (July 10, 2021): 1406–20. http://dx.doi.org/10.47059/revistageintec.v11i4.2196.

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16

Lee, Joo-Young. "Low-area Dual mode DC-DC Buck Converter with IC Protection Circuit." Journal of IKEEE 18, no. 4 (December 31, 2014): 586–92. http://dx.doi.org/10.7471/ikeee.2014.18.4.586.

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17

Soman, Sarun, Nishtha Shelly, Ciji Pearl Kurian, and Sudheer Kumar TS. "DC transformer modeling and control of DC-DC buck converter." International Journal of Power Electronics and Drive Systems (IJPEDS) 10, no. 1 (March 1, 2019): 319. http://dx.doi.org/10.11591/ijpeds.v10.i1.pp319-329.

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Switching Power Converters convert one form of power to another with high ef-ciency and accurate control.One of the most widely used DC-DC Converter is Buck Converter. Control is invariably required to maintain the output voltage/current in spite of variations in source/load. In order to design the controller and gain insight about the system a dynamic model needs to be developed. Modeling techniques widely used are state space averaging and PWM switch model. In this paper DC transformer modeling technique is used to develop the averaged model of the converter. One of the advantages of this model is that it can be implemented in Spice simulator using basic circuit elements. The same model can be used for time domain as well as frequency domain analysis. Analog type-II compensator is designed to compensate the system. Simulation and experimental results for start-up transient and load transient are shown to validate the model.
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18

Guerrero, Esteban, Jesus Linares, Enrique Guzman, Hebbert Sira, Gerardo Guerrero, and Alberto Martinez. "DC Motor Speed Control through Parallel DC/DC Buck Converters." IEEE Latin America Transactions 15, no. 5 (May 2017): 819–26. http://dx.doi.org/10.1109/tla.2017.7910194.

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19

Sivapriyan, R., and D. Elangovan. "Impedance-Source DC-to-AC/DC Converter." Electronics 8, no. 4 (April 16, 2019): 438. http://dx.doi.org/10.3390/electronics8040438.

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This article presents a novel impedance-source-based direct current (DC)-to-alternating current (AC)/DC converter (Z-Source DAD Converter). The Z-Source DAD converter converts the input DC voltage into AC or DC with buck or boost in the load voltage. This Z-Source DAD conversion circuit is a single-stage power conversion system. This converter circuit converts the input DC voltage into variable-magnitude output DC voltage or converts the DC voltage into a variable-magnitude output AC voltage. The higher voltage magnitude in boost mode can be controlled by controlling the shoot-through (ST) state timing of the converter. MATLAB-Simulink simulation and microcontroller-based hardware circuit results are presented to demonstrate power conversion with the buck and boost features of the Z-Source DAD converter for both types of output voltages. The simulation and experimental results show that the Z-Source DAD converter converts the given DC supply into AC or DC with buck or boost in the output load voltage.
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20

Ardhenta, L., R. K. Subroto, and R. N. Hasanah. "Adaptive backstepping control for Buck DC/DC converter and DC motor." Journal of Physics: Conference Series 1595 (July 2020): 012025. http://dx.doi.org/10.1088/1742-6596/1595/1/012025.

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21

Soman, Sarun, and Sangeetha T.S. "Development of Digital Controller for DC-DC Buck Converter." International Journal of Power Electronics and Drive Systems (IJPEDS) 6, no. 4 (December 1, 2015): 788. http://dx.doi.org/10.11591/ijpeds.v6.i4.pp788-796.

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This paper presents a design &amp; implementation of 3P3Z (3-pole 3-zero) digital controller based on DSC (Digital Signal Controller) for low voltage synchronous Buck Converter. The proposed control involves one voltage control loop. Analog Type-3 controller is designed for Buck Converter using standard frequency response techniques.Type-3 analog controller transforms to 3P3Z controller in discrete domain.Matlab/Simulink model of the Buck Converter with digital controller is developed. Simualtion results for steady state response and load transient response is tested using the model.
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22

Alsumady, Mohammed O., Yazan K. Alturk, Ahmad Dagamseh, and Ma'moun Tantawi. "Controlling of DC-DC Buck Converters Using Microcontrollers." International Journal of Circuits, Systems and Signal Processing 15 (March 30, 2021): 197–202. http://dx.doi.org/10.46300/9106.2021.15.22.

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This paper presents a technique to digitally control the output voltage of a DC-DC converter via a microcontroller. The voltage regulation and controlling were achieved utilizing an LM2596 buck converter. A digital potentiometer MCP41050 is utilized to smoothly control the regulated output DC voltage via the SPI digital protocol. The proposed design is manufactured and tested for various loads. This device is considered as a step-down voltage regulator capable of driving 3A load with high efficiency, excellent linearity, source-voltage variation, and load regulation. The results show that the system can control the output voltage with satisfactory performance and high accuracy. With various loads, the proposed system shows a mean square error of 0.015±0.037 volts tested with a regulated voltage of 5 volts. The efficiency improves from about 80% to around 91% at a 1 kΩ load. This design eliminates the possible errors that arise when manually varying the voltage of the buck converter; by means of using a microcontroller. Such a system ensures a proper digitally controlled output voltage with a better performance, which can be applied in various applications.
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23

R, Mr Bharath. "Design of Buck DC-DC Converter Space Application." International Journal for Research in Applied Science and Engineering Technology 10, no. 7 (July 31, 2022): 1790–94. http://dx.doi.org/10.22214/ijraset.2022.45543.

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Abstract: The buck converter is a power electronic device which converts the higher level of input voltage to lower level of output voltage. For space applications, several tests were performed on direct current (DC) to (DC) converters to evaluate potential performance and reliability issues in space use of DC to DC converters and to determine if the use of electromagnetic interference (EMI) filters mitigates concerns observed during tests. Test findings reported here include those done up until January–June 2022. Tests performed include efficiency, regulation, load regulation, power consumption with inhibit on, load transient response, synchronization, and turn-on tests. Some of the test results presented here span the thermal range -20°C to 55°C. Lower range was extended to -40°C in some tested converters.
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24

Babenko, V. P., V. K. Bityukov, and D. S. Simachkov. "DC/DC Buck-Boost Converter with Single Inductance." Russian Microelectronics 50, no. 6 (November 2021): 471–80. http://dx.doi.org/10.1134/s1063739721060044.

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25

Busquets-Monge, Sergio, Salvador Alepuz, and Josep Bordonau. "A Bidirectional Multilevel Boost–Buck DC–DC Converter." IEEE Transactions on Power Electronics 26, no. 8 (August 2011): 2172–83. http://dx.doi.org/10.1109/tpel.2011.2105508.

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26

Zhang, Zhang, Xing Wang, Wencheng Yu, Ye Tan, Yizhong Yang, and Guangjun Xie. "50 MHz dual-mode buck DC—DC converter." Journal of Semiconductors 37, no. 8 (August 2016): 085002. http://dx.doi.org/10.1088/1674-4926/37/8/085002.

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27

Soheli, Sairatun Nesa. "A Novel Dual Inductor DC-DC Buck Converter." IOSR Journal of Electrical and Electronics Engineering 12, no. 03 (May 2017): 83–89. http://dx.doi.org/10.9790/1676-1203018389.

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28

Wei, Xile, K. M. Tsang, and W. L. Chan. "DC/DC Buck Converter Using Internal Model Control." Electric Power Components and Systems 37, no. 3 (February 23, 2009): 320–30. http://dx.doi.org/10.1080/15325000802454500.

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29

Banaei, Mohamad Reza, and Hossein Ajdar Faeghi Bonab. "High-efficiency transformerless buck-boost DC-DC converter." International Journal of Circuit Theory and Applications 45, no. 8 (January 2, 2017): 1129–50. http://dx.doi.org/10.1002/cta.2310.

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30

S., Rifdian I. "Rancang Bangun DC-DC Konverter 300 Volt Jenis Buck Konverter." Jurnal Penelitian 2, no. 3 (September 1, 2017): 178–87. http://dx.doi.org/10.46491/jp.v2e3.94.178-187.

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DC chopper jenis buck dengan beberapa aplikasi telah banyak dibuat. Namun dalam penelitian tersebut hanya menggunakan tegangan masukan yang dturunkan terlebih dahulu oleh trafo step down. Selain itu, dalam beberapa penelitian dengan DC chopper buck tidak pernah memperhitungkan seberapa besar pengaruh efek parasitik terhadap tegangan keluaran yang dibutuhkan. Komponen pensaklaran yang digunakan dalam beberapa penelitian juga tidak dibahas secara mendalam. Dari beberapa topologi konverter arus searah, konverter jenis buck dipilih karena konverter ini menghasilkan tegangan keluaran yang memiliki nilai maksimal sama dengan tegangan masukan Selain itu, buck converter memiliki efisiensi yang tinggi dan riak pada tegangan keluaran yang rendah. Dalam penelitian ini akan dibahas respon DC Chopper Buck dengan catu daya utama tegangan AC jala-jala satu fasa yang disearahkan yang meliputi tegangan masukan, arus masukan, tegangan keluaran, arus keluaran, dan efisiensi. Berdasarkan hasil pengujian, tegangan yang digunakan untuk mensuplai DC Chopper buck ini sebesar 300 Volt dengan variasi beban resistif dan beban dominan induktif. Variasi beban resistif yang digunakan yaitu 40Ω, 100Ω, dan 300Ω. Efisiensi yang dihasilkan ketika diberi beban resistif 40Ω dengan tegangan 30V-210V yaitu sebesar 62,60%-98,08%, beban 100Ω sebesar 42,05%-97,18%, sedangkan pada beban 300Ω efisiensi yang dihasilkan sebesar 37,32%-90,90%.
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31

Hilmansyah, Hilmansyah, and Restu Mukti Utomo. "RANCANG BANGUN DC – DC CONVERTER BERBASIS MICROCONTROLLER STM32F4 DAN MATLAB/SIMULINK." JTT (Jurnal Teknologi Terpadu) 8, no. 1 (April 27, 2020): 26–33. http://dx.doi.org/10.32487/jtt.v8i1.777.

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DC – DC converter banyak diplikasikan pada renewable energy, sel surya, sistem pengecasan baterai dan mobil listrik. Salah satu metode pada DC – DC converter adalah buck converter. Pada buck converter, tegangan keluaran lebih kecil dari tengangan masukkannya. Pada paper ini, buck converter didesain menggunakan microcontroller STM32F4 berbasis MATLAB/Simulink, TLP521 sebagai pengaman rangkaian daya buck converter dan rangkaian kendali STM32F4, IGBT FGH75T65UPD sebagai komponen switching, dan IR 2111 yang berfungsi sebagai gate driver untuk IGBT. Penanaman program STM32F4 dari MATLAB/Simulink menggunakan waijung blockset. Tegangan masukan pada buck converter didesain sebesar 35 V dengan tegangan keluaran sebesar 3,5 V sampai dengan 31,5 V dengan frekuensi switching pada IGBT maksimum sebesar 100 kHz. Data pada hasil eksperimen menunjukkan bahwa perubahan pada duty cycle akan berpengaruh pada tegangan keluaran, arus keluaran dan effisiensi dari buck converter.
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32

Manohar Reddy, Ram, Shaik Hussain Vali, Phanindra Thota, and Kamaraju V. Kamaraju. "Modelling And Analysis Of Pvsc Type Buck Buck-Boost Dc-Dc Converter." International Conference on Information Science and Technology Innovation (ICoSTEC) 1, no. 1 (February 26, 2022): 77–82. http://dx.doi.org/10.35842/icostec.v1i1.23.

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In the era of modern industrial development, power electronics equipment has been developed aggressively and brought dc system again in power utilization to use clean energy resources like solar array, fuel cell, wind generator, etc. Since the past decade, power electronics equipment has become very popular; hence, the switch-mode converter requirement is increasing rapidly day by day in applications like communication power supply, space crafts, hybrid electric vehicles, micro-grid and nano-grids. Among the various available configurations of converters, Multi-Input DC/DC converters became more and more popular in power electronics field, especially, for provide interface of various renewable energy sources and deliver regulated power to several loads. In this article, a PVSC type Buck Buck-Boost Dual-Input DC- DC Converter (DIDC) is designed and modelled for DC grid application. The proposed converter is driven with two renewable energy sources PV cell and a battery having different amplitudes which can able to deliver the power from source to load individually or simultaneously. DIDC tropology is simply configured with two passive elements L, C, diodes D1 D2 and switches S1 , S2. The Dual-Input DC-DC Converter suitability is validated by carrying out simulations in different modes of operation. The de-centralized PID controller is designed for voltage and current loop controller to ensure the DC output voltage of 48 V, load current of 4.8 A and power of 230W. The Stability of the closed-loop converter is also verified under all possible source and load disturbance conditions. The simulations and analysis of the proposed converter are carried out using MATLAB and PSIM software.
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33

Park, Jun-Soo, Bo-Bae Song, Dae-Yeol Yoo, Joo-Young Lee, and Yong-Seo Koo. "A Design of Peak Current-mode DC-DC Buck Converter with ESD Protection Devices." Journal of IKEEE 17, no. 1 (March 30, 2013): 77–82. http://dx.doi.org/10.7471/ikeee.2013.17.1.077.

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34

Abdullah, M. N., M. K. Mat Desa, E. A. Bakar, and M. N. Akhtar. "DC-DC Buck Converter for Electric Bike with Parameterized DC Motor: Simulation and Experimental Validation." Journal of Physics: Conference Series 2312, no. 1 (August 1, 2022): 012059. http://dx.doi.org/10.1088/1742-6596/2312/1/012059.

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Abstract This paper presents a single stage DC-DC Buck power converter for an electric bike system which is used as a DC motor driver. The DC motor is firstly parameterized to identify and estimate the dynamic of electrical and mechanical parameters. In this paper, the simulation and the experimental validation of the system are presented. A model of a DC-DC Buck converter fed with DC motor is developed. The simulation was carried out using Matlab-Simulink software and the experimental setup is based on a built prototype of Atmega 328 microcontroller board. The similarities of voltage and current input/output waveforms between simulation and experimental results proved that the single stage DC-DC Buck converter with parameterized DC motor suitable to prototype a low power electric bike model.
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35

Mishra, Debani Prasad, Rudranarayan Senapati, and Surender Reddy Salkuti. "Comparison of DC-DC converters for solar power conversion system." Indonesian Journal of Electrical Engineering and Computer Science 26, no. 2 (May 1, 2022): 648. http://dx.doi.org/10.11591/ijeecs.v26.i2.pp648-655.

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This paper covers the comparison between four different DC-DC converters for solar power conversion. The four converters are buck converter, buck-boost converter, boost converter, and noninverting buck-boost converter. An MPPT algorithm is designed to calculate battery voltage, current of PV array, the voltage of PV array, power of PV array, output power. It is observed that the non-inverting buck-boost converter is the finest converter for solar power conversion. The final circuit design has the results of 12.2V battery voltage, 0.31A current of PV array, 34V voltage of PV array, 23mW power of PV panel, and 21.8mW of output power. The efficiency of this system is nearly 95%. All four circuits are simulated in MATLAB/Simulink R2020b.
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36

Hernández-Márquez, Eduardo, Carlos Avila-Rea, José García-Sánchez, Ramón Silva-Ortigoza, Gilberto Silva-Ortigoza, Hind Taud, and Mariana Marcelino-Aranda. "Robust Tracking Controller for a DC/DC Buck-Boost Converter–Inverter–DC Motor System." Energies 11, no. 10 (September 20, 2018): 2500. http://dx.doi.org/10.3390/en11102500.

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This paper has two aims. The first is to develop a robust hierarchical tracking controller for the DC/DC Buck-Boost–inverter–DC motor system. This controller considers a high level control for the inverter–DC motor subsystems and a low level control for the DC/DC Buck-Boost converter subsystem. Such controls solve the tracking task associated with the angular velocity of the motor shaft and the output voltage of the converter, respectively, via the differential flatness approach. The second aim is to present a comparison of the robust hierarchical controller to a passive controller. This, with the purpose of showing that performance achieved with the hierarchical controller proposed in this paper, is better than the one achieved with the passive controller. Both controllers are experimentally implemented on a prototype of the DC/DC Buck-Boost–inverter–DC motor system by using Matlab-Simulink along with the DS1104 board from dSPACE. According to experimental results, the proposal in the present paper achieves a better performance than the passive controller.
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37

Lho, Young-Hwan. "Implementation of DC/DC Power Buck Converter Controlled by Stable PWM." Journal of Institute of Control, Robotics and Systems 18, no. 4 (April 1, 2012): 371–74. http://dx.doi.org/10.5302/j.icros.2012.18.4.371.

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38

Lho, Young-Hwan. "Radiation Effects on PWM Controller of DC/DC Power Buck Converter." Journal of the Korean society for railway 15, no. 2 (April 30, 2012): 116–21. http://dx.doi.org/10.7782/jksr.2012.15.2.116.

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39

Monteiro, Joaquim, V. Fernão Pires, Daniel Foito, Armando Cordeiro, J. Fernando Silva, and Sónia Pinto. "A Buck-Boost Converter with Extended Duty-Cycle Range in the Buck Voltage Region for Renewable Energy Sources." Electronics 12, no. 3 (January 24, 2023): 584. http://dx.doi.org/10.3390/electronics12030584.

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Buck-boost DC–DC converters are useful as DC grid interfaces for renewable energy resources. In the classical buck-boost converter, output voltages smaller than the input voltage (the buck region) are observed for duty cycles between 0 and 0.5. Several recent buck-boost converters have been designed to present higher voltage gains. Nevertheless, those topologies show a reduced duty-cycle range, leading to output voltages in the buck region, and thus require the use of very low duty cycles to achieve the lower range of buck output voltages. In this work, we propose a new buck-boost DC-DC converter that privileges the buck region through the extension of the duty-cycle range, enabling buck operation. In fact, the converter proposed here allows output voltages below the input voltage even with duty cycles higher than 0.6. We present the analysis, design, and testing of the extended buck-boost DC-DC converter. Several tests were conducted to illustrate the characteristics of the extended buck-boost DC-DC converter. Test results were obtained using both simulation software and a laboratory prototype.
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40

Begum, Shaik Gousia, Syed Sarfaraz Nawaz, and G. Sai Anjaneyulu. "Implementation of Fuzzy Logic Controller for DC–DC step Down Converter." Regular issue 10, no. 8 (June 30, 2021): 109–12. http://dx.doi.org/10.35940/ijitee.h9251.0610821.

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This paper presents the design of a Fuzzy logic controller for a DC-DC step-down converter. Buck converters are step-down regulated converters which convert the DC voltage into a lower level standardized DC voltage. The buck converters are used in solar chargers, battery chargers, quadcopters, industrial and traction motor controllers in automobile industries etc. The major drawback in buck converter is that when input voltage and load change, the output voltage also changes which reduces the overall efficiency of the Buck converter. So here we are using a fuzzy logic controller which responds quickly for perturbations, compared to a linear controllers like P, PI, PID controllers. The Fuzzy logic controllers have become popular in designing control application like washing machine, transmission control, because of their simplicity, low cost and adaptability to complex systems without mathematical modeling So we are implementing a fuzzy logic controller for buck converter which maintains fixed output voltage even when there are fluctuations in supply voltage and load. The fuzzy logic controller for the DC-DC Buck converter is simulated using MATLAB/SIMULINK. The proposed approach is implemented on DC-DC step down converter for an input of 230V and we get the desired output for variations in load or references. This proposed system increases the overall efficiency of the buck converter.
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41

Ribes-Mallada, U., R. Leyva, and P. Garcés. "Optimization of DC-DC Converters via Geometric Programming." Mathematical Problems in Engineering 2011 (2011): 1–19. http://dx.doi.org/10.1155/2011/458083.

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The paper presents a new methodology for optimizing the design of DC-DC converters. The magnitudes that we take into account are efficiency, ripples, bandwidth, and RHP zero placement. We apply a geometric programming approach, because the variables are positives and the constraints can be expressed in a posynomial form. This approach has all the advantages of convex optimization. We apply the proposed methodology to a boost converter. The paper also describes the optimum designs of a buck converter and a synchronous buck converter, and the method can be easily extended to other converters. The last example allows us to compare the efficiency and bandwidth between these optimal-designed topologies.
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42

Jumiyatun, Jumiyatun, and Mustofa Mustofa. "Controlling DC-DC Buck Converter Using Fuzzy-PID with DC motor load." IOP Conference Series: Earth and Environmental Science 156 (May 2018): 012003. http://dx.doi.org/10.1088/1755-1315/156/1/012003.

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43

Jumiyatun, Jumiyatun, and Mustofa Mustofa. "Controlling DC-DC Buck Converter Using Fuzzy-PID with DC motor load." IOP Conference Series: Earth and Environmental Science 156 (May 2018): 012013. http://dx.doi.org/10.1088/1755-1315/156/1/012013.

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44

Andrade, Pedro, Adérito Neto Alcaso, Fernando Bento, and Antonio J. Marques Cardoso. "Buck-Boost DC-DC Converters for Fuel Cell Applications in DC Microgrids—State-of-the-Art." Electronics 11, no. 23 (November 28, 2022): 3941. http://dx.doi.org/10.3390/electronics11233941.

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The use of fuel cells in DC microgrids has been receiving a lot of attention from researchers and industry since both technologies can deliver clean energy with little to no environmental impact. To effectively integrate fuel cells in DC microgrids, a power converter that can equate the fuel cell’s voltage with the DC microgrid’s reference voltage is required. Based on the typical output voltages of fuel cells, buck-boost topologies are commonly used in this type of application. A variety of DC-DC buck-boost topologies, showing distinctive merits and drawbacks, are available in the literature. Therefore, this paper compiles, compares and describes different DC-DC buck-boost topologies that have been introduced in the literature over the past few years. Additionally, some design considerations are addressed, and future work is proposed.
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45

Bonab, Hossein Ajdar Faeghi, and Mohamad Reza Banaei. "Enhanced Buck-Boost dc–dc Converter with Positive Output Voltage." Journal of Circuits, Systems and Computers 29, no. 05 (July 10, 2019): 2050072. http://dx.doi.org/10.1142/s0218126620500723.

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In this paper, a new transformerless buck-boost converter is presented. The voltage gain of the converter is higher than the classic boost converter, classic buck-boost converter, CUK and SEPIC converters. The proposed converter advantage is buck-boost capability. The proposed converter topology is simple; therefore, the converter control is simple. The converter has one main switch. Hence, the switch with low switching and conduction losses can be used. The stress of the main switch is low; therefore, switch with low on-state resistance can be selected. The principles of the converter and mathematic analyses are presented. The validity of the accuracy of calculations is verified by the experimental results.
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46

Lho, Young Hwan. "TID and SEGR Testing on MOSFET of DC/DC Power Buck Converter." Journal of the Korean Society for Aeronautical & Space Sciences 42, no. 11 (November 1, 2014): 981–87. http://dx.doi.org/10.5139/jksas.2014.42.11.981.

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47

Padhee, Subhransu, Umesh Chandra Pati, and Kamalakanta Mahapatra. "Closed-loop parametric identification of DC-DC converter." Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 232, no. 10 (July 16, 2018): 1429–38. http://dx.doi.org/10.1177/0959651818785291.

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This study provides a step-by-step analysis of closed-loop parametric system identification for DC-DC buck converter. In closed-loop parametric identification, input–output experimental data are used to estimate the transfer function coefficients of DC-DC buck converter. For system identification purpose, a high-frequency perturbation signal is injected in to the closed-loop system which acts as an input signal for identification experiment. Different input–output models such as Auto-Regressive eXogenous, Auto-Regressive Moving Average with eXogenous, output error, and Box–Jenkins are used to model the converter structure and prediction error method is used to estimate the parameters. Model validation schemes are used to validate the estimated model. Simulation and experimental analysis have been provided to validate the results obtained.
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48

Kaithamalai, Udhayakumar, Lakshmi Ponnusamy, and Boobal Kandasamy. "Hybrid posicast controller for a DC-DC buck converter." Serbian Journal of Electrical Engineering 5, no. 1 (2008): 121–38. http://dx.doi.org/10.2298/sjee0801121k.

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A new Posicast compensated hybrid controller for the DC-DC Buck converter is investigated. Posicast is a feed forward compensator, which eliminates the overshoot in the step response of a lightly damped system. However, the traditional method is sensitive to variations in natural frequency. The new method described here reduces this undesirable sensitivity by using Posicast within the feedback loop. Design of the Posicast function is independent of computational delay. The new controller results in a lower noise in the control signal, when compared to a conventional PID controller.
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49

Bensaada, M., S. Della Krachai, and F. Metehri. "Proposed Fuzzy Logic Controller for Buck DC-DC Converter." International Journal of Fuzzy Systems and Advanced Applications 7 (February 5, 2021): 24–28. http://dx.doi.org/10.46300/91017.2020.7.5.

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This paper provides the design for buck DC-DC converter system using fuzzy logic as well as sliding mode method. Design of fuzzy logic controller will be based on improvement of imperfection of the sliding mode controller, in particular the robustness and response time of the system. The simulation results of both systems using fuzzy logic and sliding mode are shown as well as compared to signify better of the two.
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50

Ong, Yao Rong, Shuyu Cao, Sze Sing Lee, Chee Shen Lim, Max M. Chen, Naser Vosoughi Kurdkandi, Reza Barzegarkhoo, and Yam P. Siwakoti. "A Dual-Buck-Boost DC–DC/AC Universal Converter." Electronics 11, no. 13 (June 24, 2022): 1973. http://dx.doi.org/10.3390/electronics11131973.

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This paper proposes a universal converter that is capable of operating in three modes for generating positive dc voltage, negative dc voltage, and sinusoidal ac voltage. By controlling the duty-cycle of two half-bridges, an inductor is operated at a high frequency to control the voltage across two film capacitors that constitute a dual-buck-boost converter. Two additional half-bridges operating at a fixed state or line frequency are used to select the mode of operation. Compared to the latest universal converter in the recent literature, the proposed topology has the same switch count while reducing the number of conducting switches for inductor current and reducing the number of switches operating at high frequency. The operation of the proposed dual-buck-boost dc–dc/ac universal converter is analyzed. Experimental results are presented for validation. The power conversion efficiency of the 100 W experimental prototype modeled in PLECS is approximately 98%.
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