Design of half bridge LLC resonant converter using synchronous rectifier

Naraharisetti, Kali

doi:10.1109/eit.2015.7293331

Cited by 7 publications

(1 citation statement)

References 3 publications

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“…In [15] and [17], the authors discuss about primary side regulated flyback which becomes difficult to implement at 100 W, especially if the regulation is through auxiliary winding. In [16], authors use LLC half bridge resonant converter which is suitable for 100 W design, but the disadvantages include higher BOM cost and increased complexity.…”

Section: Arxiv:201212610v1 [Eesssy] 23 Dec 2020mentioning

confidence: 99%

Single Stage PFC Flyback AC-DC Converter Design

Naraharisetti

Channegowda²

2020

2020 IEEE International Conference on Electronics, Computing and Communication Technologies (CONECCT)

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This paper discusses a 100 W single stage Power Factor Correction (PFC) flyback converter operating in boundary mode constant ON time methodology using a synchronous MOS-FET rectifier on the secondary side to achieve higher efficiency. Unlike conventional designs which use two stage approach such as PFC plus a LLC resonant stage or a two stage PFC plus flyback, the proposed design integrates the PFC and constant voltage regulation in a single stage without compromising the efficiency of the converter. The proposed design is advantageous as it has a lower component count. A design of 100 W flyback operating from universal input AC line voltage is demonstrated in this paper. The experimental results show that the power factor (PF) is greater than 0.92 and total harmonic distortion (iTHD) is less than 20% for a load varying from 25 % to 100 %. The experimental results show the advantages of a single stage design.

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Section: Arxiv:201212610v1 [Eesssy] 23 Dec 2020mentioning

confidence: 99%