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Journal articles on the topic 'Constant current mode control'

Author: Grafiati

Published: 5 June 2025

Last updated: 15 July 2025

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Ouremchi, Mounir, Khadiri Karim El, Hassan Qjidaa, and Mohammed Ouazzani Jamil. "A Li-ion battery charger based on LDO regulator with pre-charge mode in 180 nm CMOS technology." International Journal of Power Electronics and Drive Systems (IJPEDS) 15, no. 2 (2024): 659–69. https://doi.org/10.11591/ijpeds.v15.i2.pp659-669.

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This paper presents a novel Li-ion battery charger that utilizes a low-dropout (LDO) regulator and incorporates four control modes: low constant current mode, pre-charge current mode, fast constant current mode, and constant voltage mode. The charger aims to meet specific criteria such as high precision, high efficiency, and small form factor. Through simulation results, the following specifications were obtained using a 1.8 V supply in a 0.18 μm complementary metal–oxide–semiconductor (CMOS) technology: a trickle current of 124.7 mA, a pre-charge current of 466.94 mA, a maximum charge current of 1.06 A, and a charge voltage of 4.21 V. The proposed charger demonstrates an efficiency of 92%.

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Heidinger, Michael, Qihao Xia, Christoph Simon, et al. "Current Mode Control of a Series LC Converter Supporting Constant Current, Constant Voltage (CCCV)." Energies 12, no. 14 (2019): 2793. http://dx.doi.org/10.3390/en12142793.

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This paper introduces a control algorithm for soft-switching series LC converters. The conventional voltage-to-voltage controller is split into a master and a slave controller. The master controller implements constant current, constant voltage (CCCV) control, required for demanding applications, for example, lithium battery charging or laboratory power supplies. It defines the set-current for the open-loop current slave controller, which generates the pulse width modulation (PWM) parameters. The power supply achieves fast large-signal responses, e.g., from 5 V to 24 V , where 95% of the target value is reached in less than 400 s . The design is evaluated extensively in simulation and on a prototype. A match between simulation and measurement is achieved.

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Li, Yushan, Kevin R. Vannorsdel, Art J. Zirger, Mark Norris, and Dragan Maksimovic. "Current Mode Control for Boost Converters With Constant Power Loads." IEEE Transactions on Circuits and Systems I: Regular Papers 59, no. 1 (2012): 198–206. http://dx.doi.org/10.1109/tcsi.2011.2161364.

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Sun, Kang, and Wangqiang Niu. "SPWM Inverter Control for Wireless Constant Current and Voltage Charging." World Electric Vehicle Journal 14, no. 4 (2023): 111. http://dx.doi.org/10.3390/wevj14040111.

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Constant current (CC) and constant voltage (CV) charging of batteries is a crucial research area in the practical implementation of wireless power transfer (WPT) systems. The typical charging process of a battery starts from the constant current mode. As the battery’s voltage increases, the charging mode switches to the constant voltage mode. During charging, the equivalent load resistance of the battery will vary with the charging time, and the equivalent load resistance will affect the charging current or voltage and system’s efficiency. In this study, an adaptive wireless charging method of CC-CV is proposed based on sinusoidal pulse width modulation (SPWM) inverter control. The proposed WPT circuit detects the load variation by measuring the parameters of load voltage and load current, and accurately controls the system output current or voltage by adjusting the modulation depth of the SPWM inverter on the primary side. When there is relative motion between the transmitting coil and the receiving coil, the sharp change in coupling coefficient directly affects the system’s output voltage and output current, leading to output fluctuations and instability. To solve this problem, a method for estimating the coupling coefficient is proposed which estimates the coupling coefficient during the charging process by measuring system parameters. Then, the controller on the primary side adjusts the modulation depth of the SPWM inverter circuit based on the estimated new coupling coefficient, so that the system can still achieve constant current and constant voltage charging under displacement or distance changes. In this study, the CC mode output current during battery charging was set to 0.75 A, and the CV mode output voltage was set to 12 V. Simulation and experimental results demonstrate the validity and accuracy of the proposed control method.

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Muhammad, Nizam, Maghfiroh Hari, Ubaidilah Azis, Inayati, and Adriyanto Feri. "Constant current-fuzzy logic algorithm for lithium-ion battery charging." International Journal of Power Electronics and Drive Systems (IJPEDS) 13, no. 2 (2022): 926–37. https://doi.org/10.11591/ijpeds.v13.i2.pp926-937.

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The lithium-ion (Li-ion) battery has a high demand because of its long cycle, reliability, high energy density, low toxic, low self-discharge rate, high power density, and high efficiency. However, lithium-ion batteries have sensitivity to over-charge, temperature, and charge discharge currents. The conventional battery charging system takes a very long time to charge which makes the battery temperature high. Therefore, a charger system that can maximize charging capacity, shorten charging time, and extend battery life is needed. In this study, a battery charging system was developed using the constant current–fuzzy (CC-fuzzy) control method. The aim is to get faster charging time and maintain battery life by limiting the battery charging temperature. The proposed charger system is dual mode which can be operated in both buck and boost mode. The experimental result shows that the proposed method is superior compared to the constant current constant voltage (CCCV) method in charging time. The CC-fuzzy method charging time is faster compared to the CCCV method by 25% and 12.5% in buck and boost modes, respectively. Whereas from the battery temperature, in buck mode, the proposed method has a lower temperature by 0.5 ⁰C and in the boost mode, each method has the same temperature.

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Rong, Jun Xiang, and Ju Rui Yang. "The Influence Analysis of Rectifier Side Control Mode on Commutation Failure in UHVDC." Applied Mechanics and Materials 631-632 (September 2014): 339–44. http://dx.doi.org/10.4028/www.scientific.net/amm.631-632.339.

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This paper studies the influence of different control modes in the rectifier side (constant current control, constant power control) on commutation failure in UHVDC transmission system. The study is based on Yunnan-Guangdong ±800kV UHVDC transmission system and simulated in PSCAD/EMTDC. A wealth of simulation results indicate that the control ability of the constant current control on commutation failure caused by the critical voltage ratio of inverter transformer increased is worse than the constant power control; the control ability of the constant current control on commutation failure caused by three-phase grounding fault happens at inverter side AC bus is worse than the constant power control; The control ability of the constant current control on commutation failure caused by phase to phase short circuit fault or single-phase ground fault happens at inverter side AC bus is worse than the constant power control.

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Yu-Kang Lo, Huang-Jen Chiu, and Sheng-Yuan Ou. "Constant-switching-frequency control of switch-mode rectifiers without current sensors." IEEE Transactions on Industrial Electronics 47, no. 5 (2000): 1172–74. http://dx.doi.org/10.1109/41.873227.

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Oualifi, Khadija, Hassan Abouobaida, Youssef Mchaouar, Abdelmoghit Fathelkhair, Hajar Akli, and Younes Abouelmahjoub. "Comparative study of conventional sliding mode control and integral sliding mode control for a bidirectional dc-dc converter in an electric vehicle charger." E3S Web of Conferences 601 (2025): 00027. https://doi.org/10.1051/e3sconf/202560100027.

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Bidirectional dc-dc converters are crucial for integrating electric vehicles (EVs) with the electrical grid, facilitating both grid-to-vehicle (G2V) and vehicle to grid (V2G) energy transfers. Nonetheless, effectively controlling bidirectional energy flow poses significant challenges. This study compares two control methods, the conventional sliding mode controller (CSMC) and the integral sliding mode controller (ISMC), as applied to a bidirectional dc-dc converter. The dc-dc converter functions in two distinct modes: during grid to vehicle (G2V), it operates in buck mode to charge the battery using either constant current or constant voltage based on the battery’s voltage level; and during vehicle-to-grid (V2G), it switches to boost mode to discharge battery power into the grid at a constant current. The proposed controllers were simulated using MATLABK/Simulink and compared with a traditional linear PI controller. The simulation results highlight the efficiency and superiority of ISMC over both CSMC and PI control. In particular, ISMC offers superior performance in terms of response time and accuracy.

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Ouremchi, Mounir, Karim El Khadiri, Hassan Qjidaa, and Mohammed Ouazzani Jamil. "A Li-ion battery charger based on LDO regulator with pre-charge mode in 180 nm CMOS technology." International Journal of Power Electronics and Drive Systems (IJPEDS) 15, no. 2 (2024): 659. http://dx.doi.org/10.11591/ijpeds.v15.i2.pp659-669.

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This paper presents a novel Li-Ion battery charger that utilizes a low-dropout (LDO) regulator and incorporates four control modes: low constant current mode, pre-charge current mode, fast constant current mode, and constant voltage mode. The charger aims to meet specific criteria such as high precision, high efficiency, and small form factor. Through simulation results, the following specifications were obtained using a 1.8 V supply in a 0.18 μm complementary metal–oxide–semiconductor (CMOS) technology: a trickle current of 124.7 mA, a pre-charge current of 466.94 mA, a maximum charge current of 1.06 A, and a charge voltage of 4.21 V. The proposed charger demonstrates an efficiency of 92%.

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El Ancary, Marouane, Abdellah Lassioui, Hassan El Fadil, et al. "Control Strategies of a Three-Phase Wireless Power Transfer Charger." EPJ Web of Conferences 330 (2025): 01001. https://doi.org/10.1051/epjconf/202533001001.

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To maintain the required power output and guarantee optimal efficiency, voltage, and current control are essential in Wireless Power Transfer (WPT) systems. Closed-loop feedback mechanisms are commonly employed to regulate the voltage and current of the Battery Electric Vehicle (BEV) in different charging modes. This paper presents the design of controllers for multiple control strategies implemented in a three-phase WPT charger for a BEV. First, the fundamental principles of the WPT system are given with the equivalent three-phase WPT circuit. Then, the control strategies are presented to control the current in the Constant Current-Constant Voltage (CC-CV) charging mode and in the Multi-stage Current Method (MCM) charging mode. Finally, simulation results demonstrate that these control strategies are robust and precise across various BEV charging types.

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Hassan, Jassim Motlak, and S. Rahi Ahmed. "Performance comparison of different control strategies for the regulation of DC-DC negative output super-lift luo-converter." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 6 (2020): 5785–92. https://doi.org/10.11591/ijece.v10i6.pp5785-5792.

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In last years, DC-DC converters solve the most issues in the industrial application in the area of power electronics, especially renewable energy, military applications and affiliated engineering developments. They are used to convert the DC input that unregulated to regulated output perhaps larger or smaller than input according to the type of converters. This paper presents three primary control method used for negative output Super lift Luo DC-DC converter. These methods include a voltage mode control (VMC), current mode control (CMC), and Sliding mode control (SMC). The goal of this article is to study and selected an appropriate and superior control scheme for negative DC-DC converters. The simulation results show the effectiveness of Sliding mode control for enhancing the performance of the negative DC-DC converter. Also, this method can keep the output voltage constant under load conditions. Simulation results obtained by the MATLAB/Simulink environment.

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Sanjay, Lakshminarayanan, Kumar B. M. Kiran, Nagaraja Rao S., and S. Pranupa. "Current mode control of single phase grid tie inverter with anti-islandin." International Journal of Power Electronics and Drive System (IJPEDS) 12, no. 1 (2021): 241–48. https://doi.org/10.11591/ijpeds.v12.i1.pp241-248.

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The aim of this paper is to explore the use of various current mode control (CMC) techniques to design a single phase grid tie inverter integrated with anti-islanding protection. Three types of CMC techniques have been discussed, namely current hysteresis control (CHC), constant frequency control (CFC) and average current mode control (ACMC). The performance of the grid tie inverter in the event of grid voltage failure is also studied to help install an anti-islanding mechanism. The proposed control techniques shall eliminate the use of Phase locked loop (PLL) control as the current reference is generated from the grid voltage itself. All three current mode control techniques of an inverter have been simulated in MATLAB/Simulink to evaluate the performance of the designed inverter. The simulated results show a current THD of less than 5% in all three methods and a good anti-islanding response.

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Yang, Wankai, Guoliang Zhao, and Dongming Han. "Study on the Optimization and Improvement of Control Strategies for Modular Multilevel Converter High Voltage Direct Current Connected to Weak Alternative Current Systems." Energies 18, no. 11 (2025): 2984. https://doi.org/10.3390/en18112984.

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To address the stability problem related to grid-connected modular multilevel converter high voltage direct current (MMC HVDC) connected to weak alternative current (AC) systems, the short-circuit ratio (SCR) that affects the stability of the system was analyzed first. Short-circuit ratios with SCR values greater than 1.3 were obtained, and the system could still operate stably. By applying the theoretical equations of classical circuits, it has been theoretically proven that for the constant active power and constant AC voltage control modes on the weak system side, after the flexible direct current enters the weak system mode, the power must be reduced to ensure the stable operation of the system. Combined with the actual situation of the north channel of the Chongqing–Hubei back-to-back MMC HVDC project, which is connected to the weak system mode, measures such as the optimization of the control mode and the improvement of control functions in the weak system mode were proposed, and simulation calculations and real time digital simulator (RTDS) simulation verifications were carried out. These control strategies have been applied to the Chongqing–Hubei MMC HVDC project, and on-site verification tests have been conducted to ensure stable operation in the weak system mode.

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Lu, Liangliang, Gaoshuai Shen, Haoran Xu, et al. "Triple-Mode Average Current Control with Valley Current Shaping for DCM/CRM/CCM Boost PFC Converter." Energies 15, no. 19 (2022): 7319. http://dx.doi.org/10.3390/en15197319.

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This paper presents a triple-mode average current control (TACC) strategy to achieve unity power factor and reduce the current stress for a boost PFC converter. The controller switches among different modes in each half-line cycle, and smooth transition is ensured by mapping of the operation region. By adaptive mode shifting, it reduces the current stress and current distortion caused by non-linear effects. With valley current shaping and comparisons, the TACC controller accordingly incorporates three control laws to adapt different modes. In discontinuous conduction mode (DCM), a variable on-time is calculated while the modulation is equivalent to PWM. In critical conduction mode (CRM), a constant on-time is derived, while the switching cycle is modified to regulate the current average value. For both DCM and CRM, the switching cycle is slightly extended to realize valley switching. Furthermore, with valley current shaping, the proposed controller reuses the CRM calculation to form continuous conduction mode (CCM) control law. To make the control laws compatible, normalized mapping and design rules are provided with respect to mode boundaries. This allows the TACC controller to automatically switch among different modes. Finally, experimental results prove the effectiveness of the controller in reducing the current stress and enlarging the preferable power range.

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Wang, Tao, Jinghao Ma, Cunhao Lin, Xin Li, Shenhui Chen, and Jihui Zhang. "Research on the Smooth Switching Control Strategy of Electric Vehicle Charging Stations Based on Photovoltaic–Storage–Charging Integration." World Electric Vehicle Journal 15, no. 11 (2024): 528. http://dx.doi.org/10.3390/wevj15110528.

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To facilitate seamless transitions between grid-connected and islanded modes in PV–storage–charging integration, an energy storage system converter is designated as the subject of investigation, and its operational principles are examined. Feed-forward decoupling, double closed-loop, constant-power (PQ), constant-voltage–constant-frequency (V/F), and constant-voltage charge and discharge control strategies are developed. The PQ and V/F control framework of the energy storage battery comprises an enhanced common current inner loop and a switching voltage outer loop. The current reference value output by the voltage outer loop and the voltage signal output by the current inner loop are compensated. The transient impact is reduced, and the smooth switching of the microgrid from the grid-connected mode to the island mode is realized, which significantly improves the power quality and ensures the uninterrupted charging of electric vehicles and the stable operation of the key load of the system. By constructing a simulation model of the photovoltaic energy storage microgrid on the MATLAB/Simulink platform, the practicability of the control strategy proposed in this paper is verified.

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Huang, Chih-Chung, and Huang-Jen Chiu. "A PWM Switch Model of Isolated Battery Charger in Constant-Current Mode." IEEE Transactions on Industry Applications 55, no. 3 (2019): 2942–51. http://dx.doi.org/10.1109/tia.2019.2899543.

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Kang, Sung-Kwan, Jae-Hun Jung, and Eui-Cheol Nho. "Mixed Mode Control of Constant Power and Constant Current for Resistance Spot Welder using Dynamic Resistance Characteristics." Transactions of The Korean Institute of Electrical Engineers 64, no. 11 (2015): 1571–77. http://dx.doi.org/10.5370/kiee.2015.64.11.1571.

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Nizam, Muhammad, Hari Maghfiroh, Azis Ubaidilah, Inayati Inayati, and Feri Adriyanto. "Constant current-fuzzy logic algorithm for lithium-ion battery charging." International Journal of Power Electronics and Drive Systems (IJPEDS) 13, no. 2 (2022): 926. http://dx.doi.org/10.11591/ijpeds.v13.i2.pp926-937.

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<p>The lithium-ion (Li-ion) battery has a high demand because of its long cycle, reliability, high energy density, low toxic, low self-discharge rate, high power density, and high efficiency. However, lithium-ion batteries have sensitivity to over-charge, temperature, and charge discharge currents. The conventional battery charging system takes a very long time to charge which makes the battery temperature high. Therefore, a charger system that can maximize charging capacity, shorten charging time, and extend battery life is needed. In this study, a battery charging system was developed using the constant current–fuzzy (CC-fuzzy) control method. The aim is to get faster charging time and maintain battery life by limiting the battery charging temperature. The proposed charger system is dual mode which can be operated in both buck and boost mode. The experimental result shows that the proposed method is superior compared to the constant current constant voltage (CCCV) method in charging time. The CC-fuzzy method charging time is faster compared to the CCCV method by 25% and 12.5% in buck and boost modes, respectively. Whereas from the battery temperature, in buck mode, the proposed method has a lower temperature by 0.5 ⁰C and in the boost mode, each method has the same temperature.</p>

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Liu, Beiyuan. "A Damping Control for DC Distribution System Under Isolated Operation Mode." Journal of Physics: Conference Series 2452, no. 1 (2023): 012013. http://dx.doi.org/10.1088/1742-6596/2452/1/012013.

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Abstract There are risks of resonant instability exiting in the DC distribution system configured with battery energy storage devices because of capacitors and inductors in the network with fast speed-controlled DC-DC converters. The DC distribution system needs battery energy storage devices to provide DC voltage support when it operates in an isolated island mode because of no AC or DC sources at that moment. To explore the key factors affecting the resonant instability of DC network, a three-terminal DC network consisting of DC voltage control, constant current control, and constant power load is used for state space modeling. Research results show that the inductors for faults current limitation interacting with the capacitors under high constant power load is the main reason causing instability. The other reason is the large parameter of the current controller. To suppress the resonant instability of the DC distribution system, a damping control strategy by filtering DC voltage in advance to the current control loop is proposed, and the parameters are selected using the roots locus method. Simulations verify the correctness and effectiveness of the proposed method.

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Yan, W., and H. Zimmermann. "Current-mode common-mode feedback for constant signal behaviour control in rail-to-rail input realisation." Electronics Letters 44, no. 10 (2008): 609. http://dx.doi.org/10.1049/el:20080763.

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Kaleem, Ayesha, Ihsan Ullah Khalil, Sara Aslam, Nasim Ullah, Sattam Al Otaibi, and Merfat Algethami. "Feedback PID Controller-Based Closed-Loop Fast Charging of Lithium-Ion Batteries Using Constant-Temperature–Constant-Voltage Method." Electronics 10, no. 22 (2021): 2872. http://dx.doi.org/10.3390/electronics10222872.

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Lithium-ion batteries are the most used technology in portable electronic devices. High energy density and high power per mass battery unit make it preferable over other batteries. The existing constant-temperature and constant-voltage charging technique (CT–CV), with a closed loop, lacks a detailed design of control circuits, which can increase charging speed. This article addresses this research gap in a novel way by implementing a simpler feedback proportional integral and differential (PID) control to a closed-loop CT–CV charging circuit. Voltage-mode control (VMC) and average current-mode control (ACM) methods were implemented to maintain the battery voltage, current, and temperature at safe limits. As per simulation results, 23% faster charging is achieved by implementing VMC and almost 50% faster charging is attained by employing the ACM technique in the PID controller. Our proposed control strategy is validated experimentally, which yields up to 25% faster charging of a battery than the reference battery.

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Hsu, Yu-Chien, Dan Chen, Sheng-Fu Hsiao, Hung-Yu Cheng, and Chun-Shih Huang. "Modeling of the Control Behavior of Current-Mode Constant On-Time Boost Converters." IEEE Transactions on Industry Applications 52, no. 6 (2016): 4919–27. http://dx.doi.org/10.1109/tia.2016.2597280.

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Mantas, Darameičikas, Muhammad-Sukki Firdaus, Hawa Abu-Bakar Siti, et al. "Improved design of a DC-DC converter in residential solar photovoltaic system." International Journal of Power Electronics and Drive System (IJPEDS) 10, no. 3 (2019): 1476–82. https://doi.org/10.11591/ijpeds.v10.i3.pp1476-1482.

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With growing demand in renewable energy, solar photovoltaic (PV) technology is becoming more popular. A number of research has been carried out to increase the efficiency of the PV system. One of them is improving the Switch Mode Power Supplies (SMPS) performance to ensure maximum solar energy extraction. This paper looks at buck type SMPS suitability for use in solar PV installed in residential houses. The main issues that affect the response from the output are identified. The work will utilise the LT SPICE software to carry out the simulation. The primary objective of the study is to design an improved converter controller which is more robust and is able to maintain constant output. The emphasis is on good efficiency, stability and low output voltage ripple. This could be achieved by using the current mode control (CMC) techniques – an alternative design to the voltage mode control technique (VMC). Results obtained via simulations reveal strong evidence of CMC superiority over the VMC.

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Li, Hao, Shuo Chen, Xiang Wu, and Guojun Tan. "Model Predictive Control Method with Constant Switching Frequency to Reduce Common-Mode Voltage for PMSM Drives." Journal of Electrical and Computer Engineering 2018 (October 8, 2018): 1–12. http://dx.doi.org/10.1155/2018/1090452.

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A model predictive control method to reduce the common-mode voltage (MPC-RCMV) with constant switching frequency for PMSM drives is proposed in this paper. Four nonzero VVs are adopted in future control period and the switching sequence is designed to ensure the switching frequency is fixed and equal to the control frequency. By substituting the finite-control nonzero voltage vectors in the current predictive model, a current predictive error space vector diagram is obtained to determine the adopted four VVs. The duty ratio calculating method for the selected four VVs is studied. Compared with the conventional MPC-RCMV method, the current and torque ripples are greatly reduced and the switching frequency is fixed. The simulation and experiment results validate the effectiveness of the proposed method.

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Li, Yong, Cheng Rui Zhang, Ming Xing Lin, and Yong Hua Li. "Design of Hi-Power Continuously Adjustable Constant Current Source Based on UC3846." Advanced Materials Research 430-432 (January 2012): 1519–23. http://dx.doi.org/10.4028/www.scientific.net/amr.430-432.1519.

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This paper designs the switch adjustable constant current source based on the current mode PWM control chip UC3846, the power reach to 8kw, current 0~15A continuously adjustable. It uses the I2 control method to ensure the accuracy of the output current stability and improve the dynamic performance and response speed of the system. Feedback signals achieve in external circuit of the chip UC3846, they independent to each other to ensure the accuracy of the control signal. The model of UC3846 and the power supply were built by using Matlab Simulink separately. After building those models, the circuit was simulated by using Simulink, and its simulation results reflected the output of power supply truthfully which played a good guide for the circuit design and experiment, to avoid detours and reduce risk.

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Nugroho, Asep, Estiko Rijanto, and Latif Rozaqi. "Buck Converter Control for Lead Acid Battery Charger using Peak Current Mode." International Journal of Power Electronics and Drive Systems (IJPEDS) 8, no. 2 (2017): 686. http://dx.doi.org/10.11591/ijpeds.v8.i2.pp686-694.

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DC-DC buck converters are used for battery chargers in many applications including renewable energy sources, inverters, electric vehicles and robots. In this paper a buck converter was built and its controller was developed using peak current control mode for current loop and phase lag for voltage loop. This paper proposes a formulation of plant disturbance due to load variation to obtain a nominal model based on small signal approach. The controller was derived analytically based on the nominal model. Experiment results show that the buck control system functions well in regulating the output voltage. During the start up without any load it can reduce input voltage from 300 V to output voltage of 133.9 V in 19.3 ms. The developed controller can maintain the output voltage under load variation from no load to sudden load of 0.26 A. When it was implemented to charge a lead acid battery string, constant current of 3.36 A was charged in the first 173 minutes followed by constant voltage of 134.7 V until the end of charging at time 483 minutes. Thus, the developed control system of lead acid battery charger works well.

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Mustapha, El Alaoui, El Khadiri Karim, El Alami Rachid, Tahiri Ahmed, Lakhssassi Ahmed, and Qjidaa Hassan. "A new high speed charge and high efficiency Li-Ion battery charger interface using pulse control technique." International Journal of Electrical and Computer Engineering (IJECE) 12, no. 2 (2022): 1168–79. https://doi.org/10.11591/ijece.v12i2.pp1168-1179.

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A new Li-Ion battery charger interface (BCI) using pulse control (PC) technique is designed and analyzed in this paper. Thanks to the use of PC technique, the main standards of the Li-Ion battery charger, i.e. fast charge, small surface area and high efficiency, are achieved. The proposed charger achieves full charge in forty-one minutes passing by the constant current (CC) charging mode which also included the start-up and the constant voltage mode (CV) charging mode. It designed, simulated and layouted which occupies a small size area 0.1 mm2 by using Taiwan Semiconductor Manufacturing Company 180 nm complementary metal oxide semiconductor technology (TSMC 180 nm CMOS) technology in Cadence Virtuoso software. The battery voltage VBAT varies between 2.9 V to 4.35 V and the maximum battery current IBAT is 2.1 A in CC charging mode, according to a maximum input voltage VIN equal 5 V. The maximum charging efficiency reaches 98%.

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Ziadi, Youssef, and Hassan Qjidaa. "A High Efficiency Li-Ion Battery LDO-Based Charger for Portable Application." Active and Passive Electronic Components 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/591986.

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This paper presents a high efficiency Li-ion battery LDO-based charger IC which adopted a three-mode control: trickle constant current, fast constant current, and constant voltage modes. The criteria of the proposed Li-ion battery charger, including high accuracy, high efficiency, and low size area, are of high importance. The simulation results provide the trickle current of 116 mA, maximum charging current of 448 mA, and charging voltage of 4.21 V at the power supply of 4.8–5 V, using 0.18 μm CMOS technology.

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Liu, Ying Chun, Jian Ming Zhang, De Long Zhang, et al. "30A/60V Electric Car Charger Control Circuit Simulation." Advanced Materials Research 971-973 (June 2014): 950–53. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.950.

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Through analysis and comparison of existing charging method works , adding more links constant current charging and constant voltage charging on the basis of the three-stage charging mode is proposed to receive more in line with rechargeable batteries five-phase characteristic curve charging mode. By scaling the control circuit and the PI regulator circuits use the charging current value and the constant voltage is sampled , a constant voltage corresponding to the error value to be compared and outputs the PWM control chip SG3525, causing the output current of the front end circuit chip , the regulation voltage , the error is gradually reduced until it reaches the steady-state output . 1 key components - integrated operational amplifier selection Integrated operational amplifier control circuit for the main components , essentially the entire op-amp circuits are designed to carry around , so choose the op amp circuit is particularly important . From the foregoing analysis, the current control and voltage control portion of each part requires three op amp ( both as an amplifier , a PI controller is used ) , the entire control circuit requires access to six integrated amplifier . Out of circuit integration considerations, decided to use a quad op amp manifold and a dual op amp with the completion of the manifold . By screening and the corresponding parameters available on the TI (TEXAS INSTRUMENTS TI ) website , and ultimately determine the use of quad op amp LF347 and dual op amp TLC2272.

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Lakshminarayanan, Sanjay, Kiran Kumar B M, S. Nagaraja Rao, and Pranupa S. "Current mode control of single phase grid tie inverter with anti-islanding." International Journal of Power Electronics and Drive Systems (IJPEDS) 12, no. 1 (2021): 241. http://dx.doi.org/10.11591/ijpeds.v12.i1.pp241-248.

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Farah, Fouad, Mustapha El Alaoui, Abdellali Elboutahiri, et al. "A new Li-ion battery charger with charge mode selection based on 0.18 um CMOS for phone applications." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 3 (2021): 1994. http://dx.doi.org/10.11591/ijece.v11i3.pp1994-2002.

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A new architecture of Li-Ion battery charger with charge mode selection is presented in this work. To ensure high efficiency, good accuracy and complete protection mode, we propose an architecture based on variable current source, temperature detector and power control. To avoid the risk of damage, the Li- Ion batteries charging process must change between three modes of current (trickle current (TC), constant current (CC), and constant voltage (CV)) in order to charge the battery with degrading current. However, the interest of this study is to develop a fast battery charger with high accuracy that is able to switch between charging modes without reducing its power efficiency, and to guarantee a complete protection mode. The proposed charger circuit is designed to control the charging process in three modes using the charging mode selection. The obtained results show that the Li-ion batteries can be successfully charged in a short time without reducing their efficiency. The proposed charger is implemented in 180 nm CMOS technology with a maximum charging current equal to 1 A and a maximum battery voltage equal to 4.22 V, (with input range 2.7-4.5 V). The chip area is 1.5 mm2 and the power efficiency is 90.09 %.

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Fouad, Farah, El Alaoui Mustapha, Elboutahiri Abdellali, et al. "A new Li-ion battery charger with charge mode selection based on 0.18 um CMOS for phone applications." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 3 (2021): 1994–2002. https://doi.org/10.11591/ijece.v11i3.pp1994-2002.

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Hajihosseini, Mojtaba, Ali Akbar Abedi, Dariush Nakhaei, and Mohammad Haidi Hajihosseini. "Intelligent Control Frequency Microgrid in Islanded Mode by Central Protection Unit." Ciência e Natura 37 (December 19, 2015): 205. http://dx.doi.org/10.5902/2179460x20775.

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The appearance of microgrids created challenges such as microgrid protection and due to the presence distributed generation in microgrid network fault currents basically are variable.protection projects based on constant current must be upgraded.one of the major challenges, changes of microgrid frequency in islanded mode.in this paper a new protection system have provided to monitor microgrids and update current errors use extensive communication network. This system has been designed to respond to the dynamic changes in the system like connection/disconnection DG sources and changing microgrid user condition from connected network mode to islanded mode. the protection system Provided takes over control frequency microgrid in islanded mode and prevents microgrid instability. To control frequency central protection unit changes one of the distributed generators to busbar slack. Studies for the provided network sample have been done and show how the proposed protection system can run these models.

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Al-Baidhani, Humam, and Marian K. Kazimierczuk. "Simplified Double-Integral Sliding-Mode Control of PWM DC-AC Converter with Constant Switching Frequency." Applied Sciences 12, no. 20 (2022): 10312. http://dx.doi.org/10.3390/app122010312.

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In this paper, a simplified double-integral sliding-mode control method for pulse-width-modulated dc-ac buck conversion is introduced. The control equation is derived based on the equivalent control method, in which the control-oriented model is developed using the averaged dynamics of the power converter in continuous conduction mode. In contrast with the conventional sliding-mode control schemes, the complexity of adding a capacitor current sensor, variable ramp voltage, and other relevant components is avoided. Furthermore, the control equation is translated into a simple electronic circuit with minimal added components, which reduces the practical implementation cost. The proposed control method rejects large disturbances, tracks the reference signal, and maintains a constant switching frequency. Systematic design procedure, control parameters selection, and stability conditions are presented. The design methodology is verified via simulating the proposed control circuit using Simscape Electrical in MATLAB. The control method is also compared with the conventional double-integral sliding-mode control scheme under load disturbances. The results show that the simplified control approach provides a fast transient response and robust tracking performance.

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Zheng, Litong, Haoran Zhang, Xiuyu Zhang, and Hongwei Li. "Constant Power Charging Control Method for Isolated Vehicle-to-Vehicle Energy Transfer Converter." Processes 13, no. 7 (2025): 1999. https://doi.org/10.3390/pr13071999.

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With the proliferation of electric vehicles (EVs), vehicle-to-vehicle (V2V) energy transfer has emerged as a critical technology for dynamic energy complementarity. This technology addresses “range anxiety”, thereby supporting carbon neutrality goals through the enhanced utilization of renewable-powered EVs. In order to achieve fast, safe V2V charging and improve device portability, it is necessary to optimize the charging mode and simplify the device. Therefore, this paper proposes a hierarchical control strategy for constant power (CP) charging in a V2V device with a dual-active-bridge (DAB) converter topology. First, different from traditional constant voltage (CV) and constant current (CC) charging, a unified nonlinear DAB model integrating CV/CP/CC charging modes is proposed. Furthermore, sensorless current estimation based on finite-time disturbance observers further reduced the size of the device. Finally, a hierarchical control architecture was constructed by combining backstepping control theory, which ensures global stability of multi-stage charging processes through the dynamic adjustment of phase-shift ratios. The effectiveness of the proposed methodology was validated through simulation and hardware-in-the-loop experimental results.

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Reddy, Ch Lokeshwar, P. Satish Kumar, J. V. G. Rama Rao, and M. Sharanya. "Performance Analysis of Switched Reluctance Motor by Using Closed Loop Current Control Technique." Jurnal Kejuruteraan 35, no. 6 (2023): 1393–401. http://dx.doi.org/10.17576/jkukm-2023-35(6)-12.

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This paper presents the performance analysis of an 6/4 3-phase switched reluctance motor in terms of current, flux, torque and speed. When the speed of the motor is low the current rises quickly. If the speed is large the increase in current is low. In low-speed region, the current can be controlled by using chop/hysteresis current control mode. In this mode a voltage of +Vdc and -Vdc is applied in such way the current is limited to a band. The bands can design around the reference value of current. The upper and lower bands can be designed based on the reference current. After the base speed we have to maintain current, current can’t increase quickly because speed becomes large, so in this region instead of keeping current constant the power is to be considered constant. When the speed is large this mode is not preferable. So still we have to maintain the power current has to build up, so we switch little earlier that angle is called advance angle. Angle by which voltage application is advanced that angle is the advance angle. The advance angle control can be used in such way that the current increase will happen in the lower inductance region only. The advancing of angle can be increased up to certain angles only i.e up to the lower value of inductance minimum point. The simulation has been carried out for 6/4 3-phase switched reluctance motor using MATLAB/ Simulink by applying closed loop current control technique. The detailed control of SRM for different speed modes has been carried out and the analysis of results demonstrated.

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Sulejmanov, R. Ya. "Improvement of the system of auto-regulation of braking modes of an electric train with a pulse converter." Herald of the Ural State University of Railway Transport, no. 1 (2022): 72–80. http://dx.doi.org/10.20291/2079-0392-2022-1-72-80.

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The article discusses the features of automatic regulation of the process of electric braking of a DC electric train. The peculiarity of this process is that traction engines switch to generator mode of operation to reduce the travelling speed. Industrial generators operate at a constant rotational speed and constant voltage. On an electric rolling stock in braking mode, electric machines operate at a continuously changing rotational speed. At the same time, the objective is to maintain a constant level of the set value of the braking force to ensure comfortable conditions for passengers. At the theoretical level, to accomplish this task, it is sufficient to keep the specified braking current constant at a changing rotational speed, which can be done by regulating the excitation current. In real conditions, the traction engine passes through four high-speed control zones, each of them is characterized by its own control algorithm. As braking progresses, it is possible to distinguish - a zone of high speeds, a zone below the running speed, where the process of pulse regulation of the armature current occurs (by pulse shorting of the circuit) and a zone of short-circuit of the armature circuit. The running speed is the speed at which the armature voltage is equal to the mains voltage at the rated excitation current. Within a high-speed zone, the excitation current is regulated, below this speed, the excitation current is maintained at a constant (nominal) value. The regulation of the excitation current is carried out by the control unit of the armature and excitation currents. Transitions from one zone to another are made using nonlinear elements. If the ratio of the armature current increment to the excitation current increment is considered as a transfer function, then in the high-speed zone this function is not constant. If a control system is adjusted in relation to the highest speed of movement, then in the zone of reduced speeds, performance of the system in response to voltage changes in the contact network will be insufficient. When the speed decreases, the magnitude of the transfer function decreases, and this dependence leads either to undesirable self-oscillations, or to a slowdown in the control process. In order to eliminate self-oscillations and improve the quality of regulation, it is proposed to provide in the control unit the possibility of changing the gain of the armature current regulator depending on the speed of movement and the operating mode of the traction electric drive.

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Rao, L. Navinkumar, Sanjay Gairola, Sandhya Lavety, and Nurul Islam. "Design of DC-DC Boost Converter with Negative Feedback Control for Constant Current Operation." International Journal of Power Electronics and Drive Systems (IJPEDS) 8, no. 4 (2017): 1575. http://dx.doi.org/10.11591/ijpeds.v8.i4.pp1575-1584.

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In this paper design of DC-DC boost converter with constant current control, charging is presented to charge the battery of electric vehicles. The different methods of battery charging are discussed. The charging profile of different types of batteries is investigated and compared with respect to charging time. The battery current is sensed and compared with a reference current and the generated actuating signal which is an error is feed to PI controller to compute a duty cycle of boost converter for constant current operation. A 6 V dc supply is obtained by using a step down transformer and diode rectifier. Boost converter parameters are designed for continuos conduction mode operation. The limiting values of duty cycle are fixed in the range of 0.5 to 0.6 for constant current operation. Simulation is carried out using MATLAB software for constant current operation connected to a 50 Ah, 12 V battery load. The constant current operation is achieved using negative feedback control. The switching frequency of boost converter is set to 20 kHz. The filter components are also designed to reduce ripple content within limited values. The simulation result shows the effectiveness of charging control for hardware implementation.

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Hariharan, K., Santanu Kapat, and Siddhartha Mukhopadhyay. "Constant on/off-Time Hybrid Modulation in Digital Current-Mode Control Using Event-Based Sampling." IEEE Transactions on Power Electronics 34, no. 4 (2019): 3789–803. http://dx.doi.org/10.1109/tpel.2018.2849608.

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Du, Hanxiao, Xinquan Lai, and Cong Liu. "Design of a synchronous boost DC–DC converter with constant current mode control in MPP." Analog Integrated Circuits and Signal Processing 84, no. 2 (2015): 223–35. http://dx.doi.org/10.1007/s10470-015-0567-2.

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Oualifi, Khadija, Hassan Abouobaida, Youssef Mchaouar, Younes Abouelmahjoub, Abdelmoghit Fathelkhair, and Hajar Akli. "Bidirectional energy management in electric vehicle chargers through the nonlinear control of DC-DC converters." EPJ Web of Conferences 330 (2025): 06004. https://doi.org/10.1051/epjconf/202533006004.

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Bidirectional chargers play a key role in linking electric vehicles to smart grid infrastructure, enabling seamless energy interaction, as they enable energy to be exchanged in both directions, i.e., allowing energy to flow from the grid to the vehicle (G2V) and vice versa (V2G). Nonetheless, overseeing bidirectional energy flow introduces considerable control complexities. This study presents a non-linear control approach adapted to the architecture of a bidirectional DC-DC converter, aimed at guaranteeing robust and optimized battery charging and discharging processes. During grid-to-vehicle (G2V) operation, the converter operates in buck mode, supplying the battery with either constant current (CC) or constant voltage (CV), depending on its terminal voltage. Conversely, in vehicle-to-grid (V2G) mode, the converter switches to boost mode, delivering power back to the grid at a regulated constant current. The proposed system and its control approach are validated through simulations conducted in Matlab/Simulink, demonstrating their effectiveness. A comparative analysis against a standard linear PI-based control scheme shows that the proposed sliding mode control (SMC) technique delivers enhanced performance, guaranteeing accurate and resilient regulation of energy transfer.

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Vidal-Idiarte, Enric, Carlos Restrepo, Abdelali El Aroudi, Javier Calvente, and Roberto Giral. "Digital Control of a Buck Converter Based on Input-Output Linearization. An Interpretation Using Discrete-Time Sliding Control Theory." Energies 12, no. 14 (2019): 2738. http://dx.doi.org/10.3390/en12142738.

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This paper presents the analysis and design of a PWM nonlinear digital control of a buck converter based on input-output linearization. The control employs a discrete-time bilinear model of the power converter for continuous conduction mode operation (CCM) to create an internal current control loop wherein the inductor current error with respect to its reference decreases to zero in geometric progression. This internal loop is as a constant frequency discrete-time sliding mode control loop with a parameter that allows adjusting how fast the error is driven to zero. Subsequently, an outer voltage loop designed by linear techniques provides the reference of the inner current loop to regulate the converter output voltage. The two-loop control offers a fast transient response and a high regulation degree of the output voltage in front of reference changes and disturbances in the input voltage and output load. The experimental results are in good agreement with both theoretical predictions and PSIM simulations.

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Sreejyothi, Khammampati R., P. Venkatesh Kumar, and J. Jayakumar. "Fractional order sliding mode control for power quality improvement in the distribution system." International Journal of Applied Power Engineering (IJAPE) 13, no. 2 (2024): 408. http://dx.doi.org/10.11591/ijape.v13.i2.pp408-414.

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This paper presents fractional order sliding mode control (FOSMC) based distribution system compensator (DSTATCOM) for power quality improvement in the distribution system. The three-phase two-level inverter-based voltage source converter (VSI) with DC-link capacitor is used as DSTACOM. In this paper, the FOSMC-based DSTATCOM improves supply current harmonics, load balancing, and reactive power and reduces THD. The sinusoidal pulse width modulation (SPWM) is generating gating pulses for VSI. The performance of the presented system is verified in MATLAB/Simulink software. The simulations are verified source voltage, current and load current as well as compensating current. The FOSMC has maintained a constant supply current when connecting non-linear load. The hardware results are also presented in the manuscript. The hardware results are supply current, voltage, compensating current, and load current.

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Sreejyothi, Khammampati R., P. Venkatesh Kumar, and J. Jayakumar. "Fractional order sliding mode control for power quality improvement in the distribution system." International Journal of Applied Power Engineering (IJAPE) 13, no. 2 (2024): 408–14. https://doi.org/10.11591/ijape.v13.i2.pp408-414.

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This paper presents fractional order sliding mode control (FOSMC) based distribution system compensator (DSTATCOM) for power quality improvement in the distribution system. The three-phase two-level inverterbased voltage source converter (VSI) with DC-link capacitor is used as DSTACOM. In this paper, the FOSMC-based DSTATCOM improves supply current harmonics, load balancing, and reactive power and reduces THD. The sinusoidal pulse width modulation (SPWM) is generating gating pulses for VSI. The performance of the presented system is verified in MATLAB/Simulink software. The simulations are verified source voltage, current and load current as well as compensating current. The FOSMC has maintained a constant supply current when connecting non-linear load. The hardware results are also presented in the manuscript. The hardware results are supply current, voltage, compensating current, and load current.

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Nguyen, Thai-Thanh, Hyeong-Jun Yoo, Hak-Man Kim, and Huy Nguyen-Duc. "Direct Phase Angle and Voltage Amplitude Model Predictive Control of a Power Converter for Microgrid Applications." Energies 11, no. 9 (2018): 2254. http://dx.doi.org/10.3390/en11092254.

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Several control strategies of the finite control set model predictive controls (FCS-MPC) have been proposed for power converters, such as predictive current control (PCC), direct predictive power control (DPPC), and predictive voltage control (PVC). However, for microgrid (MG) applications, the control strategy of the FCS-MPC for a power converter might be changed according to the operation mode of the MG system, which results in a transient response in the system voltage or current during the mode transition. This study proposes a new control strategy of FCS-MPC for use in both islanded and grid-connected operation modes of an MG system. Considering the characteristic of a synchronous generator, a direct phase angle and voltage amplitude model predictive control (PAC) of a power converter is proposed in this study for MG applications. In the islanded mode, the system frequency is directly controlled through the phase angle of the output voltage. In the grid-connected mode, a proportional-integral (PI) regulator is used to compensate for the phase angle and voltage amplitude of the power converter for constant power control. The phase angle of the system voltage can be easily adjusted for the synchronization process of an MG system. A comparison study on the proposed PAC method and existing predictive methods is carried out to show the effectiveness of the proposed method. The feasibility of the proposed PAC strategy is evaluated in a simulation-based system by using the MATLAB/Simulink environment.

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El Aroudi, Abdelali, Blanca Martínez-Treviño, Enric Vidal-Idiarte, and Angel Cid-Pastor. "Fixed Switching Frequency Digital Sliding-Mode Control of DC-DC Power Supplies Loaded by Constant Power Loads with Inrush Current Limitation Capability." Energies 12, no. 6 (2019): 1055. http://dx.doi.org/10.3390/en12061055.

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This paper proposes a digital sliding-mode controller for a DC-DC boost converter under constant power-loading conditions. The controller has been designed in two steps: the first step is to reach the sliding-mode regime while ensuring inrush current limiting; and the second one is to move the system to the desired operating point. By imposing sliding-mode regime, the equivalent control and the discrete-time large-signal dynamic model of this system are derived. The analysis shows that unlike with a resistive load, the boost converter under a fixed-frequency digital sliding-mode current control with external voltage loop open and loaded by a constant power load, is unstable. Furthermore, as with a resistive load, the system presents a right-half plane zero in the control-to-output transfer function. After that, an outer controller is designed in the z-domain for system stabilization and output voltage regulation. The results show that the system exhibits good performance in startup in terms of inrush current limiting and in transient response due to load and input voltage disturbances. Numerical simulations from a detailed switched model are in good agreement with the theoretical predictions. An experimental prototype is implemented to verify the mathematical analysis and the numerical simulation, which results in a perfect agreement in small-signal and steady-state behavior but also in a small discrepancy in the current limitation due a small propagation delay. Some efficient solutions have been proposed to mitigate the inrush current in the experimental results.

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Yang, Yu Lan. "Integrated Temperature Sensor AD 590 and its' Application." Applied Mechanics and Materials 236-237 (November 2012): 913–16. http://dx.doi.org/10.4028/www.scientific.net/amm.236-237.913.

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Integrated temperature sensor of current mode is made based on the principle of relation between forward current of PN junction and temperature. It is of very good linearity, inter-exchange and accurate measurement, which has been brought to close attention of the industry recently. The paper focuses on the introduction of the principle of PTAT integrated temperature sensor of current mode and detailed analysis of the product of the type .In addition, the scheme, used for constant temperature control inside the furnace, is designed with the temperature control system consist of current mode integrated temperature sensor AD590.

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Zheng, Yingyao, Ronghuan Xie, Tao Lin, Xiaoying Chen, Xingkui Mao, and Yiming Zhang. "A Family of Hybrid Topologies for Efficient Constant-Current and Constant-Voltage Output of Magnetically Coupled Wireless Power Transfer Systems." World Electric Vehicle Journal 15, no. 12 (2024): 578. https://doi.org/10.3390/wevj15120578.

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In the field of wireless charging technology for electric vehicles, the charging process of lithium-ion batteries is typically divided into two stages: constant-current (CC) charging and constant-voltage (CV) charging. This two-stage charging method helps protect the battery and extend its service life. This paper proposes a family of circuit topology design schemes that achieve a smooth transition from CC to CV charging stages by using two relays. Additionally, the paper derives the corresponding system efficiency formulas and provides constraints on device parameters to ensure that the charging efficiency remains high during different charging stages. The proposed family of circuit topologies adopt unified device parameters and relay control logic, simplifying the design and operation process, and making these topologies more suitable for large-scale applications. To verify the practical performance of these topologies, the paper constructs experimental prototypes and conducts tests. The experimental results show that the proposed family of topologies can stably achieve CC and CV output, with smooth transitions between the two charging modes, and the efficiency can be maintained above 89% before and after mode switching over a wide load range. Furthermore, the mode switching points of the proposed family of topologies are multiples of two.

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Dong, Bo, Yang Chen, Jing Lian, and Xiaohui Qu. "A Novel Compensation Circuit for Capacitive Power Transfer System to Realize Desired Constant Current and Constant Voltage Output." Energies 15, no. 4 (2022): 1523. http://dx.doi.org/10.3390/en15041523.

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Capacitive power transfer (CPT) technique possesses the advantages of safety, isolation, low cost, and insensitivity to conductive barriers. To charge lithium-ion batteries, CPT should possess the output profile consisting of first constant current (CC) output and later constant voltage (CV) output. To fulfill the output profile, many power switches or compensation components are added in the CPT circuit, which is not expected due to the bulky size and additional losses. To reduce the redundancy of the CPT system, an Lx-PS CPT circuit with only five compensation components is proposed in this paper. After a systematic analysis and a parameter design procedure, the proposed CPT circuit can realize input ZPA at both CC and CV modes. In addition, the output current at CC mode and the output voltage at CV mode are all adjustable based on the charging demands of different loads. Finally, simulations are done to prove the analysis in this paper. Compared to previous research, the CPT circuit proposed in this paper can not only achieve the charging demands of lithium-ion batteries, but also reduce the redundancy of the whole system.

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Al-Baidhani, Humam, and Marian K. Kazimierczuk. "Simplified Nonlinear Current-Mode Control of DC-DC Cuk Converter for Low-Cost Industrial Applications." Sensors 23, no. 3 (2023): 1462. http://dx.doi.org/10.3390/s23031462.

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This paper presents a robust nonlinear current-mode control approach for a pulse-width modulated DC-DC Cuk converter in a simple analog form. The control scheme is developed based on the reduced-state sliding-mode current control technique, in which a simplified equivalent control equation is derived using an averaged power converter model in continuous conduction mode. The proposed controller does not require an output capacitor current sensor and double proportional-integral compensators as in conventional sliding-mode current controllers; thus, the cost and complexity of the practical implementation is minimized without degrading the control performance. The simplified nonlinear controller rejects large disturbances, provides fast transient response, and maintains a constant switching frequency. The nonlinear control scheme is developed using an analog circuit with minimal added components, which is suitable for low-cost industrial applications. The control law derivation, control circuit design, controller gains selection, and stability analysis are provided. The proposed control methodology is verified via simulating the closed-loop nonlinear power converter model in MATLAB/SIMULINK under abrupt changes in load current and input voltage. The simulation results show that the proposed control scheme provides robust tracking performance, a low percentage overshoot, fast transient response, and a wide operating range. The maximum percentage overshoot and settling time of the closed-loop power converter response during line disturbance are 5.6% and 20 ms, respectively, whereas the percentage overshoot and settling time during load disturbance are 2.8% and 15 ms, respectively.

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