A High-Switching-Frequency Flyback Converter in Resonant Mode

Jianting, Li; Horck, F.B.M. van; Daniel, B.J.; Bergveld, Henk Jan

doi:10.1109/tpel.2016.2642044

Cited by 34 publications

(11 citation statements)

References 7 publications

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“…In recent years, the demand for increasing switching frequencies of power electronic devices is growing [1][2]. Power electronic devices are composed of active and passive elements.…”

Section: Introductionmentioning

confidence: 99%

Reducing the Alternating Current Resistance and Heat Generation in a Single‐Wire Coil Using a Magnetic Tape

Sato

Sugimoto

Kubota

et al. 2020

IEEJ Transactions Elec Engng

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In today's fast‐paced environment, the downsizing of electronic devices has become imperative. A high driving frequency is effective for the downsizing of electronic equipment. However, one problem with high driving frequency is that it increases the ac resistance and heat generation on passive devices. Using a magnetic coating on the copper wire can effectively reduce the ac resistance. In this study, we propose a method for wrapping a magnetic tape around a copper wire to easily provide a uniform magnetic coating for reducing the ac resistance. In the magnetic field simulation, we reduced the proximity effect in the coil by using a magnetic tape. The temperature rise at the thermal saturation was reduced by 26% for the experiment with a high‐frequency current of 4 A. Applying the magnetic tape to a single‐wire coil effectively reduced the ac resistance and heat generation. © 2020 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.

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“…In recent years, the demand for increasing switching frequencies of power electronic devices is growing [1][2]. Power electronic devices are composed of active and passive elements.…”

Section: Introductionmentioning

confidence: 99%

Reducing the Alternating Current Resistance and Heat Generation in a Single‐Wire Coil Using a Magnetic Tape

Sato

Sugimoto

Kubota

et al. 2020

IEEJ Transactions Elec Engng

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“…In order to reduce switching power losses, the converter should operate under a soft switching condition [8]. The quasi-resonant switching technique can be adopted for reducing switching power losses [10][11][12][13]. By varying the switching frequency, power switches operate in a quasi-sinusoidal way [10].…”

Section: Introductionmentioning

confidence: 99%

“…The quasi-resonant switching technique can be adopted for reducing switching power losses [10][11][12][13]. By varying the switching frequency, power switches operate in a quasi-sinusoidal way [10]. The converter operates at the boundary of continuous and discontinuous conduction modes [11].…”

Section: Introductionmentioning

confidence: 99%

Soft-Switching Bidirectional Three-Level DC–DC Converter with Simple Auxiliary Circuit

Choi

Yang

2019

Electronics

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This paper suggests a soft-switching bidirectional three-level DC–DC converter with a simple auxiliary circuit. The proposed converter uses auxiliary LC resonant circuits so that the power switches operate under a soft-switching condition. The resonant operation of the LC circuits makes power switches turn on at zero voltage, eliminating the turn-on switching power losses. The proposed converter improves the power efficiency, not using complex power switching circuits, but using simple LC resonant circuits. The operation of the proposed converter is described according to its operation modes. Experimental results for a 1.0 kW prototype are discussed to verify its performance. The proposed converter achieved the power efficiencies of 97.7% in the step-up mode and 97.8% in the step-down mode, respectively, for the rated load condition.

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“…Nowadays, isolated switching converters have been spread increasingly and are used in different applications, such as photovoltaic systems [1], battery chargers [2], and LED drivers [3]. Due to some merits such as a simple structure, affordable and isolation, flyback topologies are extensively applied [4][5][6]. Also, there is no need for the output filter in this topology in comparison with other topologies such as forward converters, which are beneficial to reduce the size of the isolated converter.…”

Section: Introductionmentioning

confidence: 99%

Half‐bridge flyback converter with lossless passive snubber and interleaved technique

Mohammadian

Yazdani

2018

IET Power Electronics

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Hard-switching flyback converters are widely used in the low power application but suffer from high electromagnetic emissions, current ripples, and low efficiency. To overcome these problems, a half-bridge flyback converter with a new lossless passive snubber is proposed using an interleaved structure. All switches of the proposed converter turn on under zero current switching and turn off under zero voltage switching which decreases the switching losses and electromagnetic interference (EMI). Theoretical analysis of the proposed converter is presented and verified by the experimental results of a 200 W prototype. In addition to the 7% efficiency improvement, the proposed converter has lower EMI in comparison with its hardswitching converter.

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A High-Switching-Frequency Flyback Converter in Resonant Mode

Cited by 34 publications

References 7 publications

Reducing the Alternating Current Resistance and Heat Generation in a Single‐Wire Coil Using a Magnetic Tape

Reducing the Alternating Current Resistance and Heat Generation in a Single‐Wire Coil Using a Magnetic Tape

Soft-Switching Bidirectional Three-Level DC–DC Converter with Simple Auxiliary Circuit

Half‐bridge flyback converter with lossless passive snubber and interleaved technique

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