Tightly regulated dual-output half-bridge converter using PFM-APWM hybrid control method

Park, Hwa-Pyeong; Kim, Mina; Jung, Jee‐Hoon

doi:10.1109/apec.2017.7930977

Cited by 3 publications

(2 citation statements)

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“…Nevertheless, it inherits the advantages and disadvantages, as mentioned earlier for PFM and PWM control methods. In [174,[198][199][200][201], a combination of the PFM and APWM approaches has been employed, which shares the advantages and disadvantages of both PWM and PFM techniques, in practice.…”

Section: Llc Resonantconverter Different Control Approachesmentioning

confidence: 99%

Application-Oriented Review of the LLC-Based Resonant Converters

Shahsevani,

Beiranvand

2024

IEEE Access

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The LLC resonant converter is a widely utilized power electronics converter, due to its numerous industrial and domestic applications. This converter offers some advantages such as soft-switching operation of all switches, high efficiency, high power density, low voltage stress, minimal electromagnetic interference (EMI) noise, input/output isolation, wide input/output voltage range, and reliable and good performance under the wide load variation ranges, as well as good light-load operation. However, this converter has certain limitations, which can be addressed to enhance its operation and efficiency. This paper provides an in-depth review and comparison of various LLC-based resonant converter configurations, focusing on their operational principles, mathematical analysis, control methods, and some practical applications including electric vehicle chargers, TV power supplies, LED drivers, photovoltaic cells, HVDC production, fuel cells, and wireless power transfer applications. By examining the strengths and weaknesses of the different LLC resonant converter designs, this study aims to contribute to the ongoing research efforts in improving the performance and efficiency of this important power electronics converter. INDEX TERMS DC-DC power conversion, LLC resonant converter, resonant power conversion.

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Section: Llc Resonantconverter Different Control Approachesmentioning

confidence: 99%

Application-Oriented Review of the LLC-Based Resonant Converters

Shahsevani,

Beiranvand

2024

IEEE Access

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“…To obtain the high cost-effectiveness and tight output voltage regulation, the concept of a hybrid control method employing PFM and APWM was introduced for the dual-output LLC resonant converter in [31]. It does not require any additional components to implement the hybrid control algorithm, which shows the same cost-effectiveness as the conventional cross regulation method.…”

Section: Introductionmentioning

confidence: 99%

Design Methodology of Tightly Regulated Dual-Output LLC Resonant Converter Using PFM-APWM Hybrid Control Method

Park

Kim

et al. 2019

Energies

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A dual-output LLC resonant converter using pulse frequency modulation (PFM) and asymmetrical pulse width modulation (APWM) can achieve tight output voltage regulation, high power density, and high cost-effectiveness. However, an improper resonant tank design cannot achieve tight cross regulation of the dual-output channels at the worst-case load conditions. In addition, proper magnetizing inductance is required to achieve zero voltage switching (ZVS) of the power MOSFETs in the LLC resonant converter. In this paper, voltage gain of modulation methods and steady state operations are analyzed to implement the hybrid control method. In addition, the operation of the hybrid control algorithm is analyzed to achieve tight cross regulation performance. From this analysis, the design methodology of the resonant tank and the magnetizing inductance are proposed to compensate the output error of both outputs and to achieve ZVS over the entire load range. The cross regulation performance is verified with simulation and experimental results using a 190 W prototype converter.

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Analysis and Design of Phase-Shift Pulse-Frequency-Modulated Full-Bridge LCC Resonant Converter

Chen

Gao

et al. 2020

IEEE Trans. Ind. Electron.

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Tightly regulated dual-output half-bridge converter using PFM-APWM hybrid control method

Cited by 3 publications

References 8 publications

Application-Oriented Review of the LLC-Based Resonant Converters

Application-Oriented Review of the LLC-Based Resonant Converters

Design Methodology of Tightly Regulated Dual-Output LLC Resonant Converter Using PFM-APWM Hybrid Control Method

Analysis and Design of Phase-Shift Pulse-Frequency-Modulated Full-Bridge LCC Resonant Converter

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