Analysis and Design of a High-Efficiency Boundary Conduction Mode Tapped-Inductor Boost LED Driver for Mobile Products

Kang, Jingoo; Han, Sang‐Kyoo; Han, Jonghee

doi:10.6113/jpe.2014.14.4.632

Cited by 2 publications

(1 citation statement)

References 17 publications

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“…Today, power switching converters are widely used in many applications such as fuel cells [1], LED drivers [2], power factor correction [3] and photovoltaic systems [4]. Among the various switching converters, the flyback topology is widely used in electronic systems due to its benefits such as isolation and a simple structure.…”

Section: Introductionmentioning

confidence: 99%

A ZCT Double-Ended Flyback Converter with Low EMI

Yazdani¹,

Rahmani²,

Mohammadi³

2015

Journal of Power Electronics

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In this paper, a zero current transition (ZCT) double-ended flyback converter is proposed. All of the switching elements act under soft switching conditions and the voltage stress of the main switches is limited to the input voltage due to the innate behavior of the double-ended flyback converter. Providing soft switching conditions and clamping the voltage stress improves the efficiency and electromagnetic compatibility (EMC). The Proposed converter is analyzed in detail and its operating modes are discussed in detail. Experimental results are presented to verify the theoretical predictions. Moreover, the conducted electromagnetic emissions of the proposed ZCT double-ended flyback converter are measured to show another merit of the proposed converter in addition to providing soft switching conditions. The measured electromagnetic interference (EMI) of the proposed converter demonstrates that its EMI is lower than the conventional double-ended flyback converter. Furthermore, two simple and cost effective EMI reduction methods are applied to satisfy the EMC standard.

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Section: Introductionmentioning

confidence: 99%

A ZCT Double-Ended Flyback Converter with Low EMI

Yazdani¹,

Rahmani²,

Mohammadi³

2015

Journal of Power Electronics

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Electromagnetic Compatibility Analysis and Optimization Design of Switching Power Supply Printed Circuit Board

Zhang¹,

Yin

Qiu³

et al. 2021

Journal of Nanoelectronics and Optoelectronics

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Printed Circuit Board (PCB) is not only an important electrical module of information equipment, but also an important source of electromagnetic radiation. Only when PCB works normally and is compatible with other electrical equipment, the whole information equipment can work normally. Because of the complexity of PCB structure and the difficulty of modeling, the EMC (Electromagnetic Compatibility) analysis of PCB is very difficult. For this reason, Taking the widely used full bridge current double rectifier converter as an example, aiming at the electromagnetic compatibility problems caused by the PCB design of the switching power supply, this paper proposes a simulation method based on the electromagnetic field by establishing the near-field radiation model of the PCB, analyzes the areas with high radiation intensity in the PCB layout, by optimizing the layout and wiring of the PCB, the electromagnetic compatibility performance of the switching power supply is improved. The simulation results show that the near-field radiation characteristics of PCB can be predicted by introducing the electromagnetic field simulation method in the design stage, according to the characteristics of the magnetic field, the optimal design is realized, so that the EMC of the switching power supply reaches the standard, and finally the working performance of the switching power supply is improved.

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Analysis and Design of a High-Efficiency Boundary Conduction Mode Tapped-Inductor Boost LED Driver for Mobile Products

Cited by 2 publications

References 17 publications

A ZCT Double-Ended Flyback Converter with Low EMI

A ZCT Double-Ended Flyback Converter with Low EMI

Electromagnetic Compatibility Analysis and Optimization Design of Switching Power Supply Printed Circuit Board

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