Results 121 to 130 of about 2,804 (163)

Modeling of cascade buck converters

Proceedings of the 2003 International Symposium on Circuits and Systems, 2003. ISCAS '03., 2003
In this paper signal flow graph non-linear modeling of cascade buck converters is presented. A unified signal flow graph model of the converter is developed, and then large, small-signal and steady-state models are deduced from the unified graph. Converter performance expressions are derived.
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A comparative analysis of synchronous buck, isolated buck and buck converter

2015 IEEE 15th International Conference on Environment and Electrical Engineering (EEEIC), 2015
Demand of power is increasing worldwide and this increased demand has motivated the engineers to look for alternative or renewable energy systems. Meanwhile, the data centers are also employing the solar energy systems to avoid the AC/DC power conversion losses due to the fact that an efficient solar system with DC/DC converter will help them to save ...
Zafar Iqbal, Usman Nasir, Muhammad Tahir Rasheed, Kashif Munir   +3 more
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A quadratic buck converter with lossless commutation

IEEE Transactions on Industrial Electronics, 2000
High switching frequency associated with soft commutation techniques is a new trend in switching converters. Following this trend, the authors present a buck pulsewidth modulation converter, where the DC voltage conversion ratio has a quadratic dependence on duty cycle, providing a large step-down.
Vinicius M. Pacheco, Acrísio José do Nascimento Jr., Valdeir José Farias, João Batista Vieira Jr., Luiz Carlos Gomes de Freitas   +4 more
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DC-DC Buck Converter for Supercapacitor

2019 International Conference on Electronics, Information, and Communication (ICEIC), 2019
In this paper, a DCM DC-DC buck converter for charging supercapacitor is proposed. The buck converter consists of compensator for gain and frequency compensation, pulsewidth modulation(PWM) control logic for switch control, clock generator, and soft start-up to reduce the inrush current of an inductor during the initial operation of the converter.
Beomsu Yun, Taekyoung Jung, Jinhyun Kim, Joongho Choi   +3 more
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Digital combination of buck and boost converters to control a positive buck-boost converter

2006 37th IEEE Power Electronics Specialists Conference, 2006
A high efficiency control strategy for operating a buck-boost switching regulator is presented in this paper. The sophisticated control technique can regulate an output voltage for an input voltage, which is higher, lower, or the same as the output voltage. There are several existing solutions to these problems, but all have their disadvantages.
Arindam Chakraborty, Alireza Khaligh, Ali Emadi, Arthur Pfaelzer   +3 more
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A positive output buck boost converter combining KY and SR-buck converters

2015 International Conference on Power, Instrumentation, Control and Computing (PICC), 2015
In most portable electronics equipment's, batteries are used as a source of power. Some efficient power management technique is required in order to get longer battery life. In some batteries, output voltage is not constant so an additional switching power unit is required to get a constant output voltage.
Jim Harley Jose, K. Pramelakumari
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Comparison of a 12V, 10A, 3MHz buck converter and a series capacitor buck converter

2015 IEEE Applied Power Electronics Conference and Exposition (APEC), 2015
This paper presents a theoretical and experimental comparison of a two-phase buck converter and a two-phase, series capacitor buck converter. The challenges of a conventional buck converter in high current (10 A or more), high frequency (3–30 MHz) point-of-load voltage regulators with large voltage conversion ratios (10-to-1) are discussed.
Pradeep S. Shenoy, Mike Amaro, Dave Freeman, Jeff Morroni   +3 more
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A Buck Converter with Integrated Circuit Breaker

2018 IEEE 27th International Symposium on Industrial Electronics (ISIE), 2018
Power conversion and protection systems are often associated with two different devices; power electronic converters and circuit breakers. With power electronic converters enabling the integration of various dc sources, and circuit breakers providing system protection, both are essential in the reliability of dc networks.
Jeffrey Yong Kwen Chong, Daniel Joseph Ryan, Hugh D. Torresan, Behrooz Bahrani   +3 more
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Direct Deadbeat Control of a Buck Converter

IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, 2019
A method of a direct deadbeat control without resort to transformation of system variables is presented. One of its outcomes is a possibility of practical application in control systems of power semiconductor converters with the aim to derivate a maximum speed of response. A technique to develop a mathematical model of a deadbeat controller for a pulse-
Albert Iskhakov, Yuri Portnoy, Sergey Skovpen, Denis Gladkiy   +3 more
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Analysis and comparison of inductor coupled buck-boost converter combining KY converter and SR buck converter

2014 International Conference on Circuits, Power and Computing Technologies [ICCPCT-2014], 2014
A buck-boost converter combining the KY converter and SR buck converter with coupled inductors is presented. This converter is modified from the buck-boost converter combining the KY converter and SR buck converter. The voltage conversion ratio of the modified converter is greater than that of the existing converter.
Greeshma Joseph, V Renjini
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