A New LLSC Series Quasi-Resonant Converter With Narrow Switching Frequency Variation

A New LLSC Series Quasi-Resonant Converter With Narrow Switching Frequency Variation

In this paper, the FHA model including the stray capacitance is analysed. The causes of the voltage gain distortion are studied. Limiting the working frequency is an effective method to solve the voltage gain distortion problem. A new type of the LLSC converter is proposed in the paper. It can regul...

Full description

Bibliographic Details
Main Authors: Tianyu Zhu, Yanchao Ji, Jianze Wang, Yiqi Liu
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Constant-frequency voltage regulation
soft switching
voltage gain distortion
high efficiency
Online Access:https://ieeexplore.ieee.org/document/9118947/
id doaj-5a420bf848344ad89508a79a9eb7dc48
record_format Article
spelling doaj-5a420bf848344ad89508a79a9eb7dc482021-03-30T02:45:05ZengIEEEIEEE Access2169-35362020-01-01811317511318210.1109/ACCESS.2020.30027599118947A New LLSC Series Quasi-Resonant Converter With Narrow Switching Frequency VariationTianyu Zhu0https://orcid.org/0000-0002-4551-1344Yanchao Ji1Jianze Wang2Yiqi Liu3Harbin Institute of Technology, Harbin, ChinaHarbin Institute of Technology, Harbin, ChinaHarbin Institute of Technology, Harbin, ChinaNortheast Forestry University, Harbin, ChinaIn this paper, the FHA model including the stray capacitance is analysed. The causes of the voltage gain distortion are studied. Limiting the working frequency is an effective method to solve the voltage gain distortion problem. A new type of the LLSC converter is proposed in the paper. It can regulate the voltage at a constant frequency. At the same time, the soft switch can be realized if the parameter design is reasonable. The proposed converter can overcome the voltage gain distortion problem and obtain the high efficiency at the light load condition. Some mathematical analyses are used to prove that the proposed converter can avoid the voltage gain distortion problems. The simulation and experimental results based on a 200W LLSC converter prototype confirm the correctness of the topology.https://ieeexplore.ieee.org/document/9118947/Constant-frequency voltage regulationsoft switchingvoltage gain distortionhigh efficiency
collection DOAJ
language English
format Article
sources DOAJ
author Tianyu Zhu
Yanchao Ji
Jianze Wang
Yiqi Liu
spellingShingle Tianyu Zhu
Yanchao Ji
Jianze Wang
Yiqi Liu
A New LLSC Series Quasi-Resonant Converter With Narrow Switching Frequency Variation
IEEE Access
Constant-frequency voltage regulation
soft switching
voltage gain distortion
high efficiency
author_facet Tianyu Zhu
Yanchao Ji
Jianze Wang
Yiqi Liu
author_sort Tianyu Zhu
title A New LLSC Series Quasi-Resonant Converter With Narrow Switching Frequency Variation
title_short A New LLSC Series Quasi-Resonant Converter With Narrow Switching Frequency Variation
title_full A New LLSC Series Quasi-Resonant Converter With Narrow Switching Frequency Variation
title_fullStr A New LLSC Series Quasi-Resonant Converter With Narrow Switching Frequency Variation
title_full_unstemmed A New LLSC Series Quasi-Resonant Converter With Narrow Switching Frequency Variation
title_sort new llsc series quasi-resonant converter with narrow switching frequency variation
publisher IEEE
series IEEE Access
issn 2169-3536
publishDate 2020-01-01
description In this paper, the FHA model including the stray capacitance is analysed. The causes of the voltage gain distortion are studied. Limiting the working frequency is an effective method to solve the voltage gain distortion problem. A new type of the LLSC converter is proposed in the paper. It can regulate the voltage at a constant frequency. At the same time, the soft switch can be realized if the parameter design is reasonable. The proposed converter can overcome the voltage gain distortion problem and obtain the high efficiency at the light load condition. Some mathematical analyses are used to prove that the proposed converter can avoid the voltage gain distortion problems. The simulation and experimental results based on a 200W LLSC converter prototype confirm the correctness of the topology.
topic Constant-frequency voltage regulation
soft switching
voltage gain distortion
high efficiency
url https://ieeexplore.ieee.org/document/9118947/
work_keys_str_mv AT tianyuzhu anewllscseriesquasiresonantconverterwithnarrowswitchingfrequencyvariation
AT yanchaoji anewllscseriesquasiresonantconverterwithnarrowswitchingfrequencyvariation
AT jianzewang anewllscseriesquasiresonantconverterwithnarrowswitchingfrequencyvariation
AT yiqiliu anewllscseriesquasiresonantconverterwithnarrowswitchingfrequencyvariation
AT tianyuzhu newllscseriesquasiresonantconverterwithnarrowswitchingfrequencyvariation
AT yanchaoji newllscseriesquasiresonantconverterwithnarrowswitchingfrequencyvariation
AT jianzewang newllscseriesquasiresonantconverterwithnarrowswitchingfrequencyvariation
AT yiqiliu newllscseriesquasiresonantconverterwithnarrowswitchingfrequencyvariation
_version_ 1724184627909754880

Similar Items