Results 171 to 180 of about 14,740 (209)

A Hybrid Boost–Flyback/Flyback Microinverter for Photovoltaic Applications

IEEE Transactions on Industrial Electronics, 2020
For photovoltaic applications, the flyback microinverter with pseudo-dc-link is popular as a simple topology but brings large transformer turns ratio and thus large leakage inductance, which would deteriorate the converter efficiency. To solve this issue, based on the nonisolated pseudo-dc-link structure, this paper proposed a hybrid boost–flyback ...
Feng Zhang, Yunxiang Xie, Yanshen Hu, Gang Chen, Xuemei Wang   +4 more
openaire   +1 more source

Flyback lossless passive snubber

2015 IEEE Energy Conversion Congress and Exposition (ECCE), 2015
To increase power conversion density, it is inevitably necessary to increase switching frequency. However, doing so has detrimental effects, including reduced efficiency and increased EMI under hard-switching operation. To prevent the side effects of high switching frequencies, soft switching methods present advantages.
Mehdi Mohammadi, Martin Ordonez
openaire   +1 more source

An improved Flyback converter

2009 6th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2009
This paper presents a modified Flyback converter able to operate with higher efficiency and smaller size, overcoming most of the conventional flyback converter drawbacks, and also keeping its low cost and simplicity. In particular, the proposed converter allows the mosfet off voltage to be reduced and clamped to the input, thus recovering the ...
BOSCAINO, Valeria, CAPPONI, Giuseppe, SCALIA, P, PONZO, G.   +3 more
openaire   +2 more sources

Design and implementation of flyback converters

2010 5th IEEE Conference on Industrial Electronics and Applications, 2010
In switch mode power supplies(SMPS), flyback converters are very popular because of, design simplicity, low cost, multiple isolated outputs, high output voltages and high efficiency. They are preferred especially for low power applications (150W).
ÇORUH, NASIR, ÜRGÜN, SATILMIŞ, ERFİDAN, TARIK   +2 more
openaire   +2 more sources

Asymmetrical PWM flyback converter

2000 IEEE 31st Annual Power Electronics Specialists Conference. Conference Proceedings (Cat. No.00CH37018), 2002
The asymmetrical PWM converter with the flyback output rectifier (asymmetrical PWM flyback converter) is proposed in this paper. The asymmetrical PWM flyback converter has the feature of zero-voltage switching (ZVS) in the active switches using resonance of the parasitic components.
D.H. Seo, O.J. Lee, S.H. Lim, J.S. Park
openaire   +1 more source

Resonant flyback converter

IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200), 2002
The paper discusses a new power converter circuit, the symmetrical resonant flyback power converter. Its fundamental mathematical analysis is presented, together with simulation results. The switches in the power converter operate with ZCS (zero current switching) at turn-on and with ZVS (zero voltage switching) at turn-off.
openaire   +1 more source

Ringing of Flyback Transformers

IEEE Transactions on Consumer Electronics, 1982
In this paper the third harmonic tuning of dissipative flyback transformers is discussed and conditions for minimum ringing and rules of variation of ringing voltage are investigated as the leakage inductance is tuned near minimum ringing.
Zuxun Ying, Zhensheng Zhu
openaire   +1 more source

Fuzzy based flyback converter

2014 International Conference on Advances in Electrical Engineering (ICAEE), 2014
DC-DC converters can be viewed as dc transformers that deliver a DC-DC voltage or current at a different level than the input source. The unregulated DC voltage is converted into regulated DC voltage at required level under varying load and input voltage condition.
K. Deepa, R. Jeyanthi, Shweta Mohan, M. Vijaya Kumar   +3 more
openaire   +1 more source

Snubber Design for Flyback Converter

2021 25th International Conference Electronics, 2021
This article presents some design guidelines for the snubber of flyback converters. When the MOSFET turns off, a high-voltage spike occurs on the drain pin because of a resonance between the leakage inductor (LLK) of the main transformer and output capacitor (COSS) of the MOSFET. Therefore, it is necessary to add a circuit to clamp the voltage.
Richard Zelnik, Michal Prazenica
openaire   +1 more source

Hermetically Sealed Flyback Transformer

IEEE Transactions on Broadcast and Television Receivers, 1972
Conventional high voltage supplies for color TV occupy much space, with both rectifier and flyback transformer enclosed in a metal cage. The solid insulation materials used allow the possibility of smoke emission owing to a small production error as voltages of up to 30KV at 15.75 KHz are generated.
Keisuke Miyoshi, Kohei Sato, Shunsaku Shimazu   +2 more
openaire   +1 more source