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Journal articles on the topic 'DC half-bridge converter'

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Published: 4 June 2021
Last updated: 2 February 2022

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1

Chakraborty, Chandan, Muneaki Ishida, and Takamasa Hori. "A Half Bridge CLL Resonant DC/DC Converter." IEEJ Transactions on Industry Applications 119, no. 12 (1999): 1558–59. http://dx.doi.org/10.1541/ieejias.119.1558.

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2

Vinnikov, Dmitri. "Some Design Considerations For The 6.5 KV Igbt-based Half-bridge Dc/dc Converter." Eletrônica de Potência 13, no. 2 (May 1, 2008): 55–60. http://dx.doi.org/10.18618/rep.2008.2.055060.

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3

Sullivan, C. R., and S. R. Sanders. "Soft-switched square-wave half-bridge DC-DC converter." IEEE Transactions on Aerospace and Electronic Systems 33, no. 2 (April 1997): 456–63. http://dx.doi.org/10.1109/7.575881.

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4

Roy, Shalini, and Rahul Pandey. "High Conversion Ratio Converter Using Half-Bridge Sub-Modules." International Journal of Engineering Technology and Management Sciences 4, no. 5 (September 28, 2020): 110–15. http://dx.doi.org/10.46647/ijetms.2020.v04i05.020.

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An appreciable and significant assess of consideration and mindset is currently growing up for power dc-dc converters and its further more consideration is taken towards adoption of Modular-Multilevel Converters (MMC). The paper presents a transformer less MMC by the means of superior and advanced conversion ratio for higher dc-dc power conversion. This converter is being capable of utilized mutually for both the Medium Voltage Direct Current (MVDC) transmission systems and High Voltage Direct Current (HVDC) transmission systems, due to its some remarkable distinctive attributes such as modular design, scalability, consistency, tolerance of failures, larger step up and step down ratio and lowers filtering requirements. The MMC idea connects N low voltage sub-modules in sequence to produce a high voltage output. Thus there is no complex control algorithm necessary to stabilize or balance the voltages in every sub-module. Thus the simulation and analysis of a MMC design connected with stray inductances in order to reduce losses is done with an instance of 11-times stepping up ratio.
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5

张, 涛. "An Asymmetric Half Bridge Forward-Flyback Hybrid DC/DC Converter." Journal of Electrical Engineering 05, no. 04 (2017): 286–94. http://dx.doi.org/10.12677/jee.2017.54035.

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6

Chub, Andrii, Dmitri Vinnikov, Oleksandr Korkh, Tanel Jalakas, and Galina Demidova. "Wide-Range Operation of High Step-Up DC-DC Converters with Multimode Rectifiers." Electronics 10, no. 8 (April 12, 2021): 914. http://dx.doi.org/10.3390/electronics10080914.

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This paper discusses the essence and application specifics of the multimode rectifiers in high step-up DC-DC converters. It presents an overview of existing multimode rectifiers. Their use enables operation in the wide input voltage range needed in highly demanding applications. Owing to the rectifier mode changes, the converter duty cycle can be restricted to a range with a favorable efficiency. It is shown that the performance of such converters depends on the front-end inverter type. The study considers current- and impedance-source front-end topologies, as they are the most relevant in high step-up applications. It is explained why the full- and half-bridge implementations provide essentially different performances. Unlike the half-bridge, the full-bridge implementation shows step changes in efficiency during the rectifier mode changes, which could compromise the long-term reliability of the converter. The theoretical predictions are corroborated by experimental examples to compare performance with different boost front-end inverters.
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7

Cheng, Huan, Yingna Guo, Zhao Ma, and Sisi Bai. "Design of Half-bridge Bidirectional DC-DC Converter Control Loop." Journal of Physics: Conference Series 1894, no. 1 (April 1, 2021): 012004. http://dx.doi.org/10.1088/1742-6596/1894/1/012004.

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8

Lin, B. R. "ZVS Converter with Full-Bridge and Half-Bridge Circuits: Analysis, Design and Implementation." Journal of Circuits, Systems and Computers 26, no. 06 (March 5, 2017): 1750090. http://dx.doi.org/10.1142/s0218126617500906.

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A new DC/DC converter integrating a full-bridge circuit and a half-bridge pulse-width circuit is studied to realize the advantages of a wide range of zero-voltage switching (ZVS) and less circulating current loss. A half-bridge converter is connected to power switches on the lagging-leg of full-bridge converter to achieve a wider range of ZVS to overcome the disadvantage of narrow ZVS range in conventional full-bridge converter. The output side of half-bridge circuit is linked to the secondary side of the full-bridge converter to decrease the primary circulating current of the full-bridge converter. Therefore, the conduction losses due to the high circulating current in conventional full-bridge converter are reduced. The theoretical analysis is discussed in detail and the effectiveness of the proposed converter is verified by the experimental verifications with a 1440[Formula: see text]W prototype.
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9

Salehi, Navid, Herminio Martinez-Garcia, and Guillermo Velasco-Quesada. "A Comparative Study of Different Optimization Methods for Resonance Half-Bridge Converter." Electronics 7, no. 12 (December 2, 2018): 368. http://dx.doi.org/10.3390/electronics7120368.

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The LLC resonance half-bridge converter is one of the most popular DC-DC converters and could easily inspire researchers to design a high-efficiency and high-power-density converter. LLC resonance converters have diverse operation modes based on switching frequency and load that cause designing and optimizing procedure to vary in different modes. In this paper, different operation modes of the LLC half-bridge converter that investigate different optimization procedures are introduced. The results of applying some usual optimization methods implies that for each operation mode some specific methods are more appropriate to achieve high efficiency. To verify the results of each optimization, numerous simulations are done by Pspice and MATLAB and the efficiencies are calculated to compare them. Finally, to verify the result of optimization, the experimental results of a laboratory prototype are provided.
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10

Sowmya, R., and S. Rama Reddy. "Proportional Resonant Controlled Dual Active Bridge DC to AC Converter System with Enhanced Response." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 1 (March 1, 2018): 316. http://dx.doi.org/10.11591/ijpeds.v9.i1.pp316-322.

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<p>This paper deals with comparison of responses of PI and Proportional Resonant controlled DC to AC Converter systems. The objective of this work is to regulate the output of Dual Active Bridge DC to DC converter (DABDAC). The input DC is converted into high frequency AC using Half bridge inverter. It is stepped up by using step up transformer and then it is rectified. The DC is converted into Low frequency AC using a Half bridge inverter. The open loop DABDAC system, closed loop PI based DABDAC system an Proportional Resonant Controller (PRC)based DABDAC system are designed, modeled and simulated using MATLAB Simulink. The results of PR controlled system are compared with those of PI controlled system. The results indicate that the proposed PRC-DABDAC has better time domain response than PI controlled DABDAC system. The proposed DABDAC system has advantages like high gain and steady state error in output voltage. </p>
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11

Lin, Bor-Ren, and Yong-Sheng Zhuang. "Hybrid Resonant Converter with Three Half-Bridge Legs for Wide Voltage Operation." Applied Sciences 10, no. 1 (December 31, 2019): 310. http://dx.doi.org/10.3390/app10010310.

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This paper studied a hybrid resonant converter with three half bridge legs for wide input voltage operation. Compared to the conventional resonant converters with narrow voltage operation, the presented converter can achieve wider voltage operation. On the basis of the proper switching status of power switches, the developed converter can operate at half-bridge resonant circuit under high input voltage range and the other two full-bridge resonant circuits under medium and low input voltage ranges. Each resonant circuit has a 2:1 (Vin,max = 2Vin,min) input voltage operation range. Therefore, the developed converter can achieve an 8:1 (Vin,max = 8Vin,min) wide voltage operation. The main advantage of the studied converter is the single-stage direct current (DC)/DC power conversion instead of the two-stage power conversion to achieve wide voltage operation. Because the equivalent resonant tank of the adopted converter is controlled by frequency modulation, the soft switching operation on power switches or rectifier diodes can be realized to improve circuit efficiency. The performance of the proposed circuit was confirmed and verified by experiments with a laboratory circuit.
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12

Carbajal-Retana, Marco, Leobardo Hernandez-Gonzalez, Jazmin Ramirez-Hernandez, Juan Gerardo Avalos-Ochoa, Pedro Guevara-Lopez, Igor Loboda, and Luis Antonio Sotres-Jara. "Interleaved Buck Converter for Inductive Wireless Power Transfer in DC–DC Converters." Electronics 9, no. 6 (June 8, 2020): 949. http://dx.doi.org/10.3390/electronics9060949.

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The use of Inductive Wireless Power Transfer (IWPT) varies from low-power applications such as mobile phones and tablets chargers to high-power electric vehicles chargers. DC–DC converters are used in IWPT systems, and their design needs to consider the demand of high efficiency in the power transfer. In this paper, a DC–DC power converter for IWPT is proposed. Its topology uses a DC–AC converter in the transmitter circuit and an AC–DC converter in the receptor. The transmitter has an interleaved coupled-Buck converter that integrates two Buck converters connected to a half inverter bridge and a parallel resonant load. The control strategy implemented for the semiconductor switching devices allows two operating modes to obtain a sinusoidal output voltage with a low distortion that makes it suitable in high-efficiency power transfer systems. To obtain a DC output voltage, a full wave bridge rectifier is used in the receptor circuit. The proposed topology and the control strategy are validated with simulation and experimental results for a 15 W prototype.
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13

Li, Sen, and Babak Fahimi. "State‐space modelling of LLC resonant half‐bridge DC–DC converter." IET Power Electronics 13, no. 8 (June 2020): 1583–92. http://dx.doi.org/10.1049/iet-pel.2019.1503.

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14

Li, Pengcheng, Chunjiang Zhang, Sanjeevikumar Padmanaban, and Leonowicz Zbigniew. "Multiple Modulation Strategy of Flying Capacitor DC/DC Converter." Electronics 8, no. 7 (July 11, 2019): 774. http://dx.doi.org/10.3390/electronics8070774.

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Flying-capacitor multiplexed modulation technology is suitable for bipolar DC microgrids with higher voltage levels and higher current levels. The module combination and corresponding modulation method can be flexibly selected according to the voltage level and capacity level. This paper proposes a bipolar bidirectional DC/DC converter and its interleaved-complementary modulation strategy that is suitable for bipolar DC microgrids. The converter consists of two flying-capacitor three-level bidirectional DC/DC converters that are interleaved in parallel 90°, and then cascaded with another module to form a symmetrical structure of the upper and lower arms; the complementary modulation of the upper and lower half bridges constitutes an interleaved complementary multilevel bidirectional DC/DC converter. If the bidirectional converter needs to provide a stronger overcurrent capability, more bridge arms can be interleaved in parallel. Once n bridge arms are connected in parallel, the bridge arms should be interleaved 180°/n in parallel. In bipolar DC microgrids, the upper and lower arms should be complementarily modulated, and the input and output are isolated by the inductance. To solve the current difference, caused by the inconsistent parasitic, the voltage-current double closed-loop-control is used, and the dynamic response is faster during bidirectional operation. This paper proposes theoretical analysis and experiments that verify bipolar bidirectional DC/DC converter for high-power energy storage.
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15

Choi, Woo-Young, and Joo-Seung Yoo. "A Bridgeless Single-Stage Half-Bridge AC/DC Converter." IEEE Transactions on Power Electronics 26, no. 12 (December 2011): 3884–95. http://dx.doi.org/10.1109/tpel.2011.2141152.

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16

Marikkannan, A., B. V. Manikandan, and S. Jeyanthi. "A ZVS DC-DC Converter with High Voltage Gain for Fuel Cell Systems." Applied Mechanics and Materials 573 (June 2014): 83–88. http://dx.doi.org/10.4028/www.scientific.net/amm.573.83.

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The interest toward the application of fuel cells is increasing in the last years mainly due to the possibility of highly efficient decentralized clean energy generation. The output voltage of fuel-cell stacks is generally below 50 V. Consequently, low-power applications with high output voltage require a high gain for proper operation. A zero-voltage-switching (ZVS) dc–dc converter with high voltage gain is proposed for fuel cell as a front-end converter. It consists of a ZVS boost converter stage and a ZVS half-bridge converter stage and two stages are merged into a single stage. The ZVS boost converter stage provides a continuous input current and ZVS operation of the power switches. The ZVS half-bridge converter stage provides a high voltage gain. The principle of operation and system analysis are presented. Theoretical analysis and simulation result of the proposed converter were verified.
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17

Liao, Yi-Hung. "A Step Up/Down Power-Factor-Correction Converter with Modified Dual Loop Control." Energies 13, no. 1 (January 1, 2020): 199. http://dx.doi.org/10.3390/en13010199.

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A step up/down AC/DC converter with modified dual loop control is proposed. The step up/down AC/DC converter features the bridgeless characteristic which can reduce bridge-diode conduction losses. Based on the step up/down AC/DC converter, a modified dual loop control scheme is proposed to achieve input current shaping and output voltage regulation. Fewer components are needed compared with the traditional bridge and bridgeless step up/down AC/DC converters. In addition, the intermediate capacitor voltage stress can be reduced. Furthermore, the top and bottom switches still have zero-voltage turn-on function during the negative and positive half-line cycle, respectively. Hence, the thermal stresses can also be reduced and balanced. Simulation and experimental results are provided to verify the validity of the proposed step up/down AC/DC converter and its control scheme.
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18

Li, Si, Yan Wang, and Tian Ming Yin. "Research on 12V DC/DC Converter for Pure Electric Vehicles." Applied Mechanics and Materials 614 (September 2014): 254–60. http://dx.doi.org/10.4028/www.scientific.net/amm.614.254.

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As one of the important parts of PEV (Pure Electric Vehicles), the efficiency and power density of DC/DC converter are important indicators of its performance. The efficiency of hard-switching DC/DC converter is low, so it can’t meet the requirements of PEV. To overcome such kind of problems, a DC/DC converter of 12V-30A output for PEV with LLC half-bridge resonant circuit and synchronous rectification technology is presented in this paper. Firstly, the operational principle of LLC half-bridge resonant circuit is analyzed in detail. Then the parameters of resonant network are designed based on theoretical analysis and verified. Finally, an experimental prototype of 12V-30A output for PEV is built and the efficiency is over 90%. The experimental results and running performance in PEV of the presented DC/DC converter is good enough to replace the 12V Lead-acid battery, which has broad application prospects.
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19

Wardani, Ilham Setiya, and Saiful Manan. "POWER SUPPLY INVERTER DC-DC SEBAGAI SUPPLY AUDIO AMPLIFIER." Gema Teknologi 18, no. 4 (April 30, 2016): 5. http://dx.doi.org/10.14710/gt.v18i4.21909.

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Ilham Setiya Wardani, Saiful Manan in this paper explain that Utilization of power electronics components in the process of conversion of electrical energy has been growing from year to year. for controlling power from one form to another is very important and the characteristics of the equipment of power electronics has allowed it. DC-DC converters can also be called a wave DC inverter capable of producing symmetrical widely used and applied in industry and everyday life.In the inverter power supply are made using half-bridge converter topology. Half-bridge converter topology has several advantages that are easy to create and output a lot easier in the controlling. The process of switching at the half bridge converter using mosfet IRFZ44N and executed using ICTL494.In the design of the tool, using the supply is 12 Volt DC that directly goes to IC TL494 and frequency output that is generated directly toward the driver mosfet with the type BC327 used to mesaklarkan mosfet by means of on / off alternately to supply the power transformer intiferit to raise the voltage to 26 volt AC that will be rectified by using fast diode recofery MUR1560 to rectify the AC into DC voltage with the output voltage of +/- 26 volts DC. Keywords: power supply, inverter, TL494ReferencesBarkhordarian, V. Power MOSFET Basics. International Rectifier: California. E-book :www.aosmd.com. Didownload pada april 2016. Pukul 21.15 WIB.Hermawan, H. Rancang Bangun Sistem Kendali High Frequency Induction Heating. Skripsi S1 Teknik Elektro. Jakarta: Universitas Indonesia.Malvino . 1995. Prinsip-prinsip Elektronika. Jakarta : Erlangga.Maruitula, Edison. 2011. Rancang Bangun Flyaback Regulator Untuk Mencatu Sistem Pensaklaran IGBT pada Invereter. Skripsi S1 Teknik Elektro .Depok : Unversitas Indonesia.Muis, Saludin. 2013. Perancangan Teori Dan Praktis Power Supply Jenis Switch Mode. Yogyakarta : Graha Ilmu.Rasyid, Muhammad H. 1999. Elektronika Daya. Jakarta : PT Prenhallindo.
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20

Choi, Woo-Young, Ju-Seung Yoo, and Jae-Yeon Choi. "A Bridgeless Half-Bridge AC-DC Converter with High-Efficiency." Transactions of the Korean Institute of Power Electronics 16, no. 3 (June 20, 2011): 293–301. http://dx.doi.org/10.6113/tkpe.2011.16.3.293.

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21

Chung, Gyo-Bum. "Takagi-Sugeno Fuzzy Integral Control for Asymmetric Half-Bridge DC/DC Converter." International Journal of Fuzzy Logic and Intelligent Systems 7, no. 1 (March 1, 2007): 77–84. http://dx.doi.org/10.5391/ijfis.2007.7.1.077.

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22

Yu, Xiaoyang, Ke Jin, and Zhijun Liu. "Capacitor Voltage Control Strategy for Half-Bridge Three-Level DC/DC Converter." IEEE Transactions on Power Electronics 29, no. 4 (April 2014): 1557–61. http://dx.doi.org/10.1109/tpel.2013.2279173.

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23

Guan, Yueshi, Yijie Wang, Dianguo Xu, and Wei Wang. "A half-bridge resonant DC/DC converter with satisfactory soft-switching characteristics." International Journal of Circuit Theory and Applications 45, no. 1 (May 19, 2016): 120–32. http://dx.doi.org/10.1002/cta.2221.

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24

Gnanasaravanan, A., and M. Rajaram. "Artificial Neural Network for monitoring the asymmetric half bridge DC–DC converter." International Journal of Electrical Power & Energy Systems 43, no. 1 (December 2012): 788–92. http://dx.doi.org/10.1016/j.ijepes.2012.05.057.

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25

Venmathi, M., and R. Ramaprabha. "Analysis of Three Port Full Bridge and Half Bridge DC-DC Converter Interfacing Renewable Energy System." Advanced Materials Research 768 (September 2013): 3–8. http://dx.doi.org/10.4028/www.scientific.net/amr.768.3.

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This paper presents the comparative dynamic analysis of full bridge and half bridge three port dc-dc converter topology interfacing the renewable energy sources along with the energy storage devices. The three port converter comprises the active bridge circuit and the three winding transformer. It uses single power conversion stage with high frequency link to control power flow between the batteries, load and the renewable energy sources. The power flow between the ports is controlled by phase shifting the square wave outputs of the active bridges in combination with pulse width modulation (PWM) technique. The analysis reveals that the battery discharges when the source is not sufficient to supply the load and it was charged when the source alone is capable of supplying the load. Hence there is a bidirectional power flow in the storage port when there is a transition in the source.
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26

Lin, Bor-Ren, and Yen-Chieh Huang. "Bidirectional DC Converter with Frequency Control: Analysis and Implementation." Energies 11, no. 9 (September 14, 2018): 2450. http://dx.doi.org/10.3390/en11092450.

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In this paper, a direct current (dc) converter with the abilities of bidirectional power transfer and soft switching characteristics is studied and implemented. The circuit schematic of the developed dc converter is built by a half-bridge converter and a center-tapped rectifier with synchronous rectifier. Under forward power transfer, a half-bridge circuit is controlled to regulate the low-voltage side at a stable value. For backward power transfer, a center-tapped rectifier with synchronous rectifier is regulated to control the high-voltage side at the desired voltage value, and the half-bridge circuit is operated as a voltage doubler rectifier. Active power devices are operated at zero-voltage switching using a series resonant technique on the high-voltage side with frequency modulation and inductive load operation. The practicability of the developed converter is established from experiments with a laboratory prototype circuit.
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27

Bhajana, V. V. S. K., and P. Drabek. "Development and Evaluation of an Isolated Resonant Converter for Auxiliary Power Supply in DC Traction." Engineering, Technology & Applied Science Research 9, no. 2 (April 10, 2019): 4048–52. http://dx.doi.org/10.48084/etasr.2692.

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This paper presents the implementation and evaluation of an isolated resonant converter and also compares the efficiencies of hard and soft switching isolated converter topologies using high-frequency transformer for auxiliary power supplies in DC traction. The half-bridge DC-DC converter with resonant network has been tested under zero voltage switching (ZVS), zero current switching (ZCS) operations, and also dead time variation of the power switches improving the overall system efficiency. This paper provides guidelines for a cost effective DC-DC converter design based on discrete 1200V/40A IGBTs driven with high switching frequency. That would allow optimization of passive elements by reducing their mass making the converter suitable for traction application. Simulations and test results of an experimental setup with output power up to 3kW are presented. The overall system efficiency of the ZVS and ZCS operations of half-bridge LLC DC-DC converter were compared with a classic hard switching topology.
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28

Moradisizkoohi, Hadi, Nour Elsayad, and Osama Mohammed. "A Soft-Switched DC/DC Converter Using Integrated Dual Half-Bridge with High Voltage Gain and Low Voltage Stress for DC Microgrid Applications." Inventions 3, no. 3 (September 3, 2018): 63. http://dx.doi.org/10.3390/inventions3030063.

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In this paper, a soft-switched boost converter including an integrated dual half-bridge circuit with high voltage gain and continuous input current is introduced that can be suitable for the applications requiring a wide voltage gain range, such as for the front-end of the inverter in a DC microgrid to integrate renewable energy sources (RES). In the proposed converter, two half-bridge converters are connected in series at the output stage to enhance the voltage gain. Additionally, the balanced voltage multiplier stage is employed at the output to increase the voltage conversion ratio, as well as distribute the voltage stress across semiconductors; hence, switches with smaller on-resistance RDS(on) can be adopted resulting in an improvement in the efficiency. The converter takes advantage of the clamp circuit not only to confine the voltage stress of switches, but also to achieve the soft-switching, which leads to a reduction in the switching loss as well as the cost. The mentioned features make the proposed converter a proper choice for interfacing RES to the DC-link bus of the inverter. The operation modes, steady-state analysis, and design consideration of the proposed topology have been demonstrated in the paper. A 1-kW laboratory prototype was built using gallium nitride (GaN) transistors and silicon carbide (SiC) diodes to confirm the effectiveness of the proposed topology.
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29

Chen, Su Hua, Zhi Meng Shu, and Li Jun Li. "The Design of DC/DC Converter for Battery System in Electric Vehicle." Applied Mechanics and Materials 540 (April 2014): 118–21. http://dx.doi.org/10.4028/www.scientific.net/amm.540.118.

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We propose a simple and efficient DC/DC converter circuit topology, the asymmetrical half bridge DC/DC converter used in the field of electric vehicle battery system, and make switching devices working under the condition of soft switch converter. This can easily be done with the help of state equations and MATLAB/SIMULINK as a tool for simulation of those state equations.
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30

López-Santos, Oswaldo, Yeison Alejandro Aldana-Rodríguez, Germain Garcia, and Luis Martínez-Salamero. "A Unified Multimode Control of a DC–DC Interlinking Converter Integrated into a Hybrid Microgrid." Electronics 8, no. 11 (November 8, 2019): 1314. http://dx.doi.org/10.3390/electronics8111314.

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DC–DC interlinking converters (ILCs) allow bidirectional energy exchange between DC buses of different voltage levels in microgrids. This paper introduces a multimode control approach of a half-bridge DC–DC converter interlinking an extra-low-voltage DC (ELVDC) bus of 48 VDC and a low-voltage DC (LVDC) bus of 240 VDC within a hybrid microgrid. By using the proposed control, the converter can transfer power between the buses when the other converters regulate them, or it can ensure the voltage regulation of one of the buses, this originating from its three operation modes. The proposed control scheme is very simple and provides a uniform system response despite the dependence of the converter dynamic on the operating point and the selected mode. Simulation and experimental results validated the theoretical development and demonstrated the usefulness of the proposed scheme.
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31

Lin, Bor-Ren. "Resonant Converter with Soft Switching and Wide Voltage Operation." Energies 12, no. 18 (September 9, 2019): 3479. http://dx.doi.org/10.3390/en12183479.

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A new DC/DC resonant converter with wide output voltage range operation is presented and studied to have the benefits of low switching losses on active devices and low voltage stresses on power diodes. To overcome serious reverse recovery losses of power diodes on a conventional full-bridge pulse-width modulation converter, the resonant converter is adopted to reduce the switching loss and increase the circuit efficiency. To extend the output voltage range in conventional half-bridge or full-bridge resonant converters, the secondary sides of two diode rectifiers are connected in series to have wide output voltage operation. The proposed converter can be either operated at one-resonant-converter mode for low voltage range or two-resonant-converter mode for high voltage range. Thus, the voltage rating of power diodes is decreased. Experiments with the design example are given to show the circuit performance and validate the theoretical discussion and analysis.
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32

Byen, Byeng-Joo, Jung-Muk Choi, Dong-Hwa Han, Young-Jin Lee, Hyun-Uk Seo, and Gyu-Ha Choe. "Design and Analysis of Resonant Bidirectional AC-DC Converter using Dual Half-Bridge Converter." Transactions of the Korean Institute of Power Electronics 18, no. 2 (April 20, 2013): 184–91. http://dx.doi.org/10.6113/tkpe.2013.18.2.184.

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33

Wolfs, P. J. "A current-sourced DC-DC converter derived via the duality principle from the half-bridge converter." IEEE Transactions on Industrial Electronics 40, no. 1 (1993): 139–44. http://dx.doi.org/10.1109/41.184830.

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34

Ohnishi, Tokuo, and Shigenori Hagiwara. "Half Bridge PWM Converter with a Small DC Link Capacitor." IEEJ Transactions on Industry Applications 115, no. 2 (1995): 174–75. http://dx.doi.org/10.1541/ieejias.115.174.

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35

Jovanovic, M. M., and F. C. Y. Lee. "DC analysis of half-bridge zero-voltage-switched multiresonant converter." IEEE Transactions on Power Electronics 5, no. 2 (April 1990): 160–71. http://dx.doi.org/10.1109/63.53153.

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36

Feel-Soon Kang, Sung-Jun Park, and Cheul-U Kim. "ZVZCS single-stage PFC AC-to-DC half-bridge converter." IEEE Transactions on Industrial Electronics 49, no. 1 (2002): 206–16. http://dx.doi.org/10.1109/41.982264.

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37

Zhang, Hong, Gui Xin Wang, Hao Yan, and Lu Zhou Zhang. "Research on the Half-Bridge Three-Level DC/DC Converter with High Frequency and High Voltage." Advanced Materials Research 732-733 (August 2013): 1175–78. http://dx.doi.org/10.4028/www.scientific.net/amr.732-733.1175.

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In this research, a high-voltage direct current zero voltage switching (ZVS) PWM half-bridge converter is proposed. The parameters of the converter as follows: the input voltage is up to 4000V;the output voltage is 600V.The new ZVS PWM TL converter has neutral point clamping diodes and flying capacitor. This research is going to analyze the working principle of circuit witch thus realizing the zero voltage switching and the circuit parameters selection. Moreover, circuits simulation is carried out by MATLAB to verify the reliability and feasibility of this DC/DC converter topology.
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38

Wu, Yue Fen. "The Technology Study of New Asymmetrical Half-Bridge Converter." Advanced Materials Research 986-987 (July 2014): 1884–87. http://dx.doi.org/10.4028/www.scientific.net/amr.986-987.1884.

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Because the shortcomings of the common asymmetrical half-bridge circuit can't achieve soft switch and has DC bias for the transformer, the paper studies a new asymmetrical half-bridge circuit. Compared with the traditional asymmetrical half-bridge circuit, the circuit is added an auxiliary switch and diode by the composition of the slip. Thus the converter can achieve the control strategy of symmetric PWM. At last the simulation results show that the theoretical analysis is correct.
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39

F. Omar, M., and H. C. M. Haris. "Series-Loaded Resonant Converter DC-DC Buck Operating for Low Power." Indonesian Journal of Electrical Engineering and Computer Science 8, no. 1 (October 1, 2017): 159. http://dx.doi.org/10.11591/ijeecs.v8.i1.pp159-168.

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This paper presents the functions of Series-Loaded Resonant Converter (SLRC). Series Loaded Resonant DC-DC converter is a type of soft-switching topology widely known for providing improved efficiency. Zero voltage switching (ZVS) buck converter is more preferable over hard switched buck converter for low power, high frequency DC-DC conversion applications. Zero Voltage switching techniques will be used to improve the efficiency of current and voltage at the series loaded half-bridge rectifier. The results will be described from PSIM simulation, Programming of MATLAB calculation and hardware testing.
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40

Mohammed Dobi, Abdulhakeem, and Mohd Rodhi Sahid. "Non-isolated LLC resonant DC-DC converter with balanced rectifying current and stress." Indonesian Journal of Electrical Engineering and Computer Science 18, no. 2 (May 1, 2020): 698. http://dx.doi.org/10.11591/ijeecs.v18.i2.pp698-706.

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<p><span>In isolated type LLC resonant converters, transformer leakage inductances can be merged with the resonant inductor to extend the ZVS capability of the switches apart from isolation and voltage scaling. However, the transformer presents a resonant imbalance in the secondary side leading to secondary current unbalance, an increase in RMS value of the secondary current and increase thermal stress. This paper proposed a half-bridge non-isolated LLC resonant converter with a balanced rectifying current and stress in the rectifier diodes. The proposed converter can achieve the most advantages of isolated LLC converters, such as ZVS and low MOSFET turn-off loss. By the non-isolation method, secondary current and, transformer loss is significantly reduced. In addition, rectifier diodes operate with zero current switching and balanced rectifying current and stress over the entire operating range. The proposed non-isolated structure is verified by the experimental result with a 60W LLC resonant converter. </span></p>
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41

Mao, H., J. Abu-Qahouq, S. Luo, and I. Batarseh. "Zero-Voltage-Switching Half-Bridge DC–DC Converter With Modified PWM Control Method." IEEE Transactions on Power Electronics 19, no. 4 (July 2004): 947–58. http://dx.doi.org/10.1109/tpel.2004.830052.

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42

Pont, Neilor C. Dal, Delvanei G. Bandeira, Telles B. Lazzarin, and Ivo Barbi. "A ZVS APWM Half-Bridge Parallel Resonant DC–DC Converter With Capacitive Output." IEEE Transactions on Industrial Electronics 66, no. 7 (July 2019): 5231–41. http://dx.doi.org/10.1109/tie.2018.2868270.

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43

Chien, C. H., and Y. H. Wang. "ZVS DC/DC converter with series half-bridge legs for high voltage application." International Journal of Circuit Theory and Applications 41, no. 4 (October 7, 2011): 369–86. http://dx.doi.org/10.1002/cta.803.

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44

Huang, Liang, Xinchao Dong, Changjun Xie, Shuhai Quan, and Yang Gao. "Research and Modeling of the Bidirectional Half-Bridge Current-Doubler DC/DC Converter." International Journal of Rotating Machinery 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/4854169.

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Due to its high step-up voltage ratio, high utilization rate, and good stability, the bidirectional half-bridge current-doubler topology is widely used in lithium battery system. This paper will further analyze the bidirectional half-bridge current-doubler topology. Taking into account the fact that the current is not equal to the two times current inductance may lead to a greater transformer magnetizing current leaving the transformer core saturation occurring. This paper will focus on the circuit modeling of steady-state analysis and small signal analysis, analyzing the influence parameters for the inductor current by steady-state model and analyzing the stability of the system by the small signal model. The PID controllers and soft start algorithm are designed. Then the influence of circuit parameters on the steady state and the effect of soft start algorithm is verified, and finally the function of the soft start algorithm is achieved by the experimental prototype.
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45

Keshavarzi, Morteza Daviran, and Mohd Hasan Ali. "A Novel Bidirectional DC-DC Converter for Dynamic Performance Enhancement of Hybrid AC/DC Microgrid." Electronics 9, no. 10 (October 11, 2020): 1653. http://dx.doi.org/10.3390/electronics9101653.

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The conventional bidirectional DC-DC converter (BDC), which employs a half-bridge configuration, has some major disadvantages, including a controller designed for one direction with poor performance in the other direction, a bidirectional operation which does not have symmetrical voltage gain resulting in asymmetrical operation, and step-up and step-down switches that are simultaneously modulated, thereby increasing switching losses. To overcome these drawbacks, this paper proposes a new, nonisolated, DC-DC converter for the bidirectional power flow of battery energy storage applications in DC and hybrid microgrids (HMGs). The proposed converter uses two back-to-back Boost converters with two battery voltage levels, which eliminates step-down operation to obtain symmetric gains and dynamics in both directions. In discharge mode, two battery sections are in parallel connection at a voltage level lower than the grid voltage. In charge mode, two battery sections are in series connection at a voltage level higher than the grid voltage. Simulations demonstrate the efficacy of the proposed converter in the MATALB\Simulink environment. The results show that the proposed converter has promising performance compared to that of the conventional type. Moreover, the novel converter adds no complexity to the control system and does not incur considerable power loss or capital cost.
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46

Lin, Bor-Ren, and Yen-Chun Liu. "Implementation of a Wide Input Voltage Resonant Converter with Voltage Doubler Rectifier Topology." Electronics 9, no. 11 (November 17, 2020): 1931. http://dx.doi.org/10.3390/electronics9111931.

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A new circuit structure of LLC converter is studied and implemented to achieve wide zero-voltage switching range and wide voltage operation such as consumer power units without power factor correction and long hold up time demand, battery chargers, photovoltaic converters and renewable power electronic converters. The dc converter with the different secondary winding turns is adopted and investigated to achieve the wide input voltage operation (50–400 V). To meet wide voltage operation, the full bridge and half bridge dc/dc converters with different secondary turns can be selected in the presented circuit to have three different voltage gains. According to input voltage range, the variable frequency scheme is employed to have the variable voltage gain to overcome the wide input voltage operation. Therefore, the wide soft switching load variation and wide voltage operation range are achieved in the presented resonant circuit. The prototype circuit is built and tested and the experiments are demonstrated to investigate the circuit performance.
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47

S., Jaisudha, Sowmiya Srinivasan, and Kanimozhi Gunasekaran. "Bidirectional Resonant DC-DC converter for Microgrid Applications." International Journal of Power Electronics and Drive Systems (IJPEDS) 8, no. 4 (December 1, 2017): 1548. http://dx.doi.org/10.11591/ijpeds.v8.i4.pp1548-1561.

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<p>This paper proposes a non-isolated soft-switching bidirectional dc/dc converter for interfacing energy storage in DC microgrid. The proposed converter employs a half-bridge boost converter at input port followed by a LCC resonant tank to assist in soft-switching of switches and diodes, and finally a voltage doubler circuit at the output port to enhance the voltage gain by two times. The LCC resonant circuit also adds a suitable voltage gain to the converter. Therefore, overall high voltage gain of the converter is obtained without a transformer or large number of multiplier circuit. For operation in buck mode, the high side voltage is divided by half with capacitive divider to gain higher step-down ratio. The converter is operated at high frequency to obtain low output voltage ripple, reduced magnetics and filters. Zero voltage turn-on is achieved for all switches and zero current turn-on and turn-off is achieved for all diodes in both modes i.e., buck/boost operation. Voltage stress across switches and diode is clamped naturally without external snubber circuit. An experimental prototype has been designed, built and tested in the laboratory to verify the performance of the proposed converter.</p>
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48

Piao, Chang Hao, Yu Sheng Li, Hong Tao Qiao, and Cong Teng. "The Study of Digital DC-DC Converter of Electric Vehicles." Applied Mechanics and Materials 224 (November 2012): 466–69. http://dx.doi.org/10.4028/www.scientific.net/amm.224.466.

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This paper presents a two-stage DC-DC converter for electric vehicles that controlled by using a digital MCU with a lag algorithm. Because the fuel vehicle causes many environmental issues, the electric vehicle becomes a new tendency in vehicle fields. The voltage of power battery is very high and can’t charge for lead-acid battery directly, so DC-DC converter is an essential device. In order to absorb the advantage of digital converter and meet the requirement of widely range input voltage, a digital DC-DC converters for electric vehicle is proposed. The BUCK and half bridge topology was analysis in detail and chosen for the DC-DC converter. A digital DC-DC converter system which includes the hardware and software was designed. The sample circuit, driven circuit and how to make the power transformer is described in detail in hardware design. The software mainly consist the voltage regulate program and CAN communication program. A lag compensator was designed for the voltage regulate. A prototype was made and test in the charge of the lead-acid battery. The result shows the correctness of the topology selection and circuit design. It proved that the DC-DC converter can charge the lead-acid battery within working voltage of power battery and meet the specification basically.
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49

Lin, Bor-Ren. "Bidirectional Resonant Converter for DC Microgrid Applications." Processes 9, no. 9 (September 15, 2021): 1664. http://dx.doi.org/10.3390/pr9091664.

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A bidirectional resonant converter is presented and verified in this paper for an electric vehicle battery charger/discharger system. The presented circuit can achieve forward and backward power operation, low switching losses on active devices, and wide output voltage operation. The circuit structure of the presented converter includes two resonant circuits on the primary and secondary sides of an isolated transformer. The frequency modulation approach is adopted to control the studied circuit. Owing to the resonant circuit characteristic, active devices for both forward (battery charge) and backward (battery discharge) power operation can be turned on at zero voltage switching. In order to implement a universal battery charger for different kinds of electric vehicle applications, the DC converter is demanded to have a wide output voltage range capability. The topology morphing between a full bridge resonant circuit and half bridge resonant circuit is selected to obtain high- and low-output voltage range operations so that the 200–500 V output voltage range is realized in the presented resonant converter. Compared to the conventional bidirectional converters, the proposed can be operated under a wide voltage range operation. In the end, a 1 kW laboratory prototype circuit is built, and experiments are provided to demonstrate the validity and performance of the presented bidirectional resonant converter.
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50

Seo, Jang-Soo, Jin-Geun Shon, and Hee-Jong Jeon. "Failure Prediction Monitoring of DC Electrolytic Capacitors in Half-bridge Boost Converter." Transactions of the Korean Institute of Electrical Engineers P 63, no. 4 (December 1, 2014): 345–50. http://dx.doi.org/10.5370/kieep.2014.63.4.345.

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