Results 41 to 50 of about 201,036 (148)

Miniature DC-DC Boost Converter for Driving Display Panel of Notebook Computer

Energies, 2019
This paper proposes a miniature DC-DC boost converter to drive the display panel of a notebook computer. To reduce the size of the circuit, the converter was designed to operate at a switching frequency of 1 MHz.
Seok-Hyeong Ham, Hyung-Jin Choe
doaj   +1 more source

Wide Range Voltage Scaling Converter With Extended Duty and Low Voltage Stress for a DC Microgrid Applications

IEEE Open Journal of Industry Applications
DC–DC converters hold immense importance due to their diverse applications, making it critical to design them in accordance with the demanding operational requirements.
Md Samiullah, Mohammed Al-Hitmi, Ali T. Al Awami, Shirazul Islam, Atif Iqbal   +4 more
doaj   +1 more source

Electrical Stress on the Medium Voltage Medium Frequency Transformer

Energies, 2021
This paper proposes an equivalent circuit model to obtain the transient electrical stress quantitatively in medium voltage medium frequency transformers in modern power electronics. To verify this model, transient simulation is performed on a 1.5 kV/1 kHz transformer, revealing voltage overshoot quantitatively between turns and layers of the ...
Zheng Changjiang, Wang Qian, Wang Huai, Shen Zhan, Claus Leth Bak   +4 more
openaire   +2 more sources

Voltage Stress Reduction on Compensation Capacitors of Wireless Charging Systems for Transport and Industrial Infrastructure

Communications, 2019
The paper deals with a proposal for circuit configuration of series-series (SS) compensated wireless power transfer (WPT) system with reduced voltage stresses on compensation capacitors.
Miroslav Pavelek, Pavol Spanik, Michal Frivaldsky   +2 more
doaj   +1 more source

Creep stress failure in high voltage transformer interwinding insulation [PDF]

2007 Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, 2007
Three phase transformers have an insulation system which is a complex three dimensional structure of paper and pressboard surrounding the conductors immersed in a large volume of mineral oil. In core form transformers, a key insulation area is the region between adjacent phases which is often reinforced with vertical pressboard barriers.
Mitchinson, P M, Lewin, P L, Chen, G, Jarman, P N   +3 more
openaire   +2 more sources

A Switched-Coupled-Inductor Quasi-Z-Source Network With High Boost Capability

IEEE Access
This paper proposes a new high gain quasi-Z-source network (qZSN) using a two-winding switched-coupled-inductor (SCL). By employing a two-winding SCL within the impedance network, the proposed topology offers high boost capability at low shoot-through ...
Mehran Moslehi Bajestan, Hamed Bizhani
doaj   +1 more source

Multi-Input DC-DC Converter for Nanogrid Integration with Solar Photovoltaic Systems [PDF]

Journal of Renewable Energy and Environment
Nowadays, multi-input DC-DC converters are increasingly prevalent in the field of renewable energy sources to address their fluctuating nature. This research article presents a high-power density dual-source DC-DC converter with reduced switch voltage ...
Sivaram Natarajan Vijayanathan, Irfan Ahmad Khan, Lavanya Anbazhagan, Pradeep Vishnuram, Mohit Bajaj   +4 more
doaj   +1 more source

A Novel High Step-Up DC-DC Converter Based on KY Converter [PDF]

Journal of Electrical and Electronics Engineering, 2017
High voltage gain dc-dc converters are widely using in solar systems, fuel cell and automobile electronic lamp ballast. The voltage gain of the classic converters is limited considering the issues such as the high voltage stress on the switch and diode ...
AJDARFAEGHI BONAB Hossein, BANAEI Mohamad Reza   +1 more
doaj  

Solution to reduce voltage stress of sub-module in LCC–MMC transmission system at the condition of communication fault

The Journal of Engineering, 2018
Line commutate converter–modular multilevel converter (LCC–MMC) hybrid high voltage direct current (HVDC) system combines the advantages of both LCC-HVDC and MMC-HVDC, and will be wildly used in the future.
Dengjiang Xing, Jianjun Su, Dingwen Hu, Shumin Sun, Yan Chen, Xianwei Wang, Jun Zhang, Weizheng Yao, Jinlong Wu   +8 more
doaj   +1 more source

An Enhanced Modular Multilevel Converter With Flexible Interruption Capability of DC-Side Fault

IEEE Access, 2019
The modular multilevel converter (MMC) has a promising prospect in high voltage direct current (HVDC) transmission, while the application of MMC is limited by lacking of dc fault interruption capability.
Jun Mei, Pengfei Zhu, Lingxiao Yan, Guangyao Fan, Rui Ge, Bingbing Wang   +5 more
doaj   +1 more source