Results 61 to 70 of about 20,500 (260)

A Wide Input Range Buck-Boost DC–DC Converter Using Hysteresis Triple-Mode Control Technique with Peak Efficiency of 94.8% for RF Energy Harvesting Applications

Energies, 2018
This paper presents a wide range buck-boost direct current to direct current (DC–DC) converter for wireless power transfer (WPT) systems. To implement the wide range DC–DC converter, a Hysteresis triple-mode selector is proposed and designed ...
Truong Thi Kim Nga, Seong-Mun Park, Young-Jun Park, Sang-Hyuk Park, SangYun Kim, Truong Van Cong Thuong, Minjae Lee, Keum Cheol Hwang, Youngoo Yang, Kang-Yoon Lee   +9 more
doaj   +1 more source

In‐Wheel Piezoelectric DC Power Generator With Zero Resistive Torque

Advanced Science, EarlyView.
In this paper, we present a wheel‐shaped direct‐current piezoelectric generator (DC‐PG) that fundamentally overcomes these constraints by producing phase‐stable DC electricity directly from rolling motion. By embedding this system into suitcase wheels, we demonstrated a fully integrated real‐time location tracking system powered solely by mechanical ...
Hyun Soo Kim, Hyunseok Song, In Woo Oh, Dong‐Gyu Lee, Tae Kyoung Yoon, Jeyeon Lee, Byoung Jin Yoon, So‐Min Song, Iman M. Imani, Seohyun Cho, Seong Jin Kim, Chong‐Yun Kang, Sahn Nahm, Yong Seok Park, Kyung‐Hoon Cho, Jungho Ryu, Jeong Min Baik, Jun Chen, Sunghoon Hur, Hyun‐Cheol Song   +19 more
wiley   +1 more source

Dual-Loop Voltage–Current Control of a Fractional-Order Buck-Boost Converter Using a Fractional-Order PI^λ Controller

Fractal and Fractional, 2023
Based on the fact that the inductor and capacitor are of a non-integer order by nature, to provide a more accurate theoretical basis for the optimal control of the converter, the fractional-order model of the Buck-Boost converter in the continuous mode ...
Lingling Xie, Di Wan, Rui Qin
doaj   +1 more source

Modelling and analysis of switching DC-to-DC converters in constant-frequency current-programmed mode [PDF]

, 1979
An analysis of dc-to-dc switching converters in constant-frequency current-programmed continuous conduction mode is performed, and leads to two significant results.
Brown, Art, Hsu, Shi-Ping, Middlebrook, R. D., Rensink, Loman   +3 more
core   +1 more source

Safety of Sodium‐Ion Batteries: Evaluation and Perspective from Component Materials to Cells, Modules, and Packs

Advanced Energy Materials, EarlyView.
This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim, Seoa Kim, Erik A. Wu, Darren H. S. Tan, Shawn Peng, Xiaolin Li   +5 more
wiley   +1 more source

A Buck-Boost Converter Modified to Utilize 600V GaN Power Devices in a PV Application Requiring 1200V Devices

Advances in Electrical and Computer Engineering, 2015
This paper presents a buck-boost converter which is modified to utilize new 600 V gallium nitride (GaN) power semiconductor devices in an application requiring 1200 V devices.
SRDIC, S., DESPOTOVIC, Z.
doaj   +1 more source

A Current Sensorless Control of Buck-Boost Converter for Maximum Power Point Tracking in Photovoltaic Applications

Energies, 2022
In the present paper, a current sensorless (CSL) method for buck-boost converter control is proposed for maximum power point tracking (MPPT) photovoltaic applications. The proposed control scheme uses the mathematical model of the buck-boost converter to
Nabil Obeidi, Mostefa Kermadi, Bachir Belmadani, Abdelkarim Allag, Lazhar Achour, Saad Mekhilef   +5 more
doaj   +1 more source

RANCANG BANGUN SUATU SISTEM PEMANFAATAN SUMBER ENERGI TENAGA SURYA SEBAGAI PENDUKUNG SUMBER PLN UNTUK RUMAH TANGGA BERBASIS MIKROKONTROLER (HARDWARE) [PDF]

, 2011
Energi cahaya dari matahari dapat berubah menjadi energi listrik menggunakan panel surya. Tegangan yang dihasilkan oleh panel surya 50 watt-peak sebanyak 4 (empat) 17,6V-8V .Panel surya dipasang secara paralel dengan maksud membesarkan arus keluar ...
Pitvande, Yanuar Hidayat
core  

Comprehensive comparison of a current-source and a voltage-source converter for three-phase EV fast battery chargers [PDF]

, 2015
This paper presents a comprehensive comparison of a current-source converter and a voltage-source converter for three-phase electric vehicle (EV) fast battery chargers.
Afonso, João L., Exposto, Bruno Fernandes, Monteiro, Vítor Duarte Fernandes, Pinto, J. G.   +3 more
core   +1 more source

Analyzing individual rent price ratios in eastern German agricultural land markets: A GAMLSS approach

Agribusiness, EarlyView.
Abstract This study explores the rent price ratio in agricultural land markets, crucial for evaluating market efficiency, policy needs, and farmer decision‐making. Traditionally, the analyses faced challenges due to the absence of concurrent sale and rent data for the same land, potentially leading to biased results.
Marius Michels, Cord‐Friedrich von Hobe, Miryam Sarah Merk, Thomas Kneib, Oliver Musshoff   +4 more
wiley   +1 more source