Results 171 to 180 of about 4,733 (221)

A Flyback Rectifier With Spread Harmonic Spectrum

IEEE Transactions on Industrial Electronics, 2011
This paper presents a flyback switch-mode rectifier (SMR) with spread harmonic spectrum. The SMR switching control is conducted by a charge-regulated pulsewidth modulation (PWM) scheme with constant turn-on period. The inherently stable discontinuous conduction mode operation is preserved to yield good line drawn power quality.
Yuan-Chih Chang, Chang-Ming Liaw
openaire   +1 more source

Actively clamped bidirectional flyback converter

IEEE Transactions on Industrial Electronics, 2000
An actively clamped bidirectional flyback converter is proposed. The converter's operation is examined in detail. All switches in the converter have zero-voltage-switching characteristics. A low-frequency behavior model and small-signal transfer functions are derived. It is found that the flow of current is directly under the control of the duty cycle,
Gang Chen, Yim-Shu Lee, Ron Shu-Yuen Hui, Dehong Xu, Yousheng Wang   +4 more
openaire   +3 more sources

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

A novel AC-AC converter using bridgeless flyback rectifier and flyback CCM inverter

2016 Biennial International Conference on Power and Energy Systems: Towards Sustainable Energy (PESTSE), 2016
The performance analysis of an AC-AC converter which is the combination of flyback rectifier with a bridgeless configuration and flyback inverter in a continuous conduction mode is discussed here. Compared to the basic bridge diode topology, the flyback rectifier with a bridgeless configuration can solve the problems related to conduction losses ...
null Anaghakrishnan M. R., null Shankar S., null Lekshmi S.   +2 more
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

Performance evaluation of flyback converter

Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005., 2006
Steady-state (DC) analysis of the flyback PWM DC-to-DC converter is performed for continuous conduction mode (CCM). The equations for the device stresses and the component values are derived. The circuit is designed and simulated with the aid of P-SPICE.
D. Murthy, M.K. Kazimierczuk
openaire   +1 more source

A new sepic-flyback converter

30th Annual Conference of IEEE Industrial Electronics Society, 2004. IECON 2004, 2005
In this paper, a new sepic-flyback converter has been proposed, which is suitable for buck-boost topology. The proposed converter is superposition of sepic converter mode and flyback converter mode. Not only sepic mode output but also flyback mode output can be fully regulated by constant frequency PWM control.
null Soo-Seok Kim, null Seung-Pil Mun, null Jin-Tae Kim, null Su-Jin Jang, null Chung-Yuen Won   +4 more
openaire   +1 more source

Flyback converter with hybrid clamp

2018 IEEE Applied Power Electronics Conference and Exposition (APEC), 2018
This paper presents a flyback converter with a hybrid clamp, i.e., a combined passive RCD and active clamp, and a corresponding power management circuit that substantially optimizes the performance of the flyback converter in the entire line and load ranges.
Laszlo Huber, Milan M. Jovanovic, Haibin Song, Daofei Xu, Alpha Zhang, Chien-Chung Chang   +5 more
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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

A reliability prediction of the flyback SMPS

2015 Annual IEEE India Conference (INDICON), 2015
The paper prevalently predicts on the reliability of a flyback converter as a natural isolation power supply unit (PSU) or power converter based on comprehensive components of failure rate, modelling, assessment, forecast and root dimension. It is one of the few bits and pieces for a switch mode power supply (SMPS) unit involving the performance and ...
openaire   +1 more source