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A Structure-Reconfigurable LLC Resonant Converter With Wide Gain Range
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2023In this article, a structure-reconfigurable LLC (SR- LLC) resonant converter is proposed for wide output voltage applications. The converter can operate in half-bridge mode or full-bridge mode by modulating the driving signal of the switches.
Qinglin Zhao +4 more
semanticscholar +1 more source
IEEE Transactions on Transportation Electrification, 2023
LLC-dc transformers (LLC-DCXs) operate under fixed-frequency and open-loop conditions to achieve high efficiency and are promising converters that can be used in the auxiliary power units (APUs) of electric locomotives.
Jian Jiao +3 more
semanticscholar +1 more source
LLC-dc transformers (LLC-DCXs) operate under fixed-frequency and open-loop conditions to achieve high efficiency and are promising converters that can be used in the auxiliary power units (APUs) of electric locomotives.
Jian Jiao +3 more
semanticscholar +1 more source
IEEE transactions on industrial electronics (1982. Print), 2023
The LLC resonant converter operated with fixed switching frequency can realize the function of dc transformer (DCX) and achieve high efficiency. To regulate the output voltage, a preregulator or postregulator is required, and thus constituting the DCX ...
Fei Liu, X. Ruan, Yuyang Jiang
semanticscholar +1 more source
The LLC resonant converter operated with fixed switching frequency can realize the function of dc transformer (DCX) and achieve high efficiency. To regulate the output voltage, a preregulator or postregulator is required, and thus constituting the DCX ...
Fei Liu, X. Ruan, Yuyang Jiang
semanticscholar +1 more source
A Complete Step-by-Step Optimal Design for LLC Resonant Converter
IEEE transactions on power electronics, 2021LLC resonant converters have been widely used in many different industrial applications. Analysis and design methodologies have great effect on the converter performance.
Yuqi Wei +3 more
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Phase-Shift Modulated Interleaved LLC Converter With Ultrawide Output Voltage Range
IEEE transactions on power electronics, 2021Conventional frequency modulated LLC topology is unsuitable for ultrawide voltage range applications and suffers from poor voltage regulation performance at light load conditions.
Bo Xue +4 more
semanticscholar +1 more source
IEEE transactions on power electronics, 2022
Conventional pulse frequency modulation is typically adopted in the reverse LLC converter resulting in a low voltage gain. The output bus voltage may be lower than peak grid voltage, so that the buck-type inverter cannot output 220 Vac and poses series ...
Haoran Li +6 more
semanticscholar +1 more source
Conventional pulse frequency modulation is typically adopted in the reverse LLC converter resulting in a low voltage gain. The output bus voltage may be lower than peak grid voltage, so that the buck-type inverter cannot output 220 Vac and poses series ...
Haoran Li +6 more
semanticscholar +1 more source
IEEE transactions on industrial electronics (1982. Print), 2022
Conventional digital LLC synchronous rectifier (SR) control typically uses detection circuits to sense the drain-source voltage of SR MOSFET in low output voltage applications, or gives SR duty cycle only considering the switching frequency in the ...
Haoran Li +6 more
semanticscholar +1 more source
Conventional digital LLC synchronous rectifier (SR) control typically uses detection circuits to sense the drain-source voltage of SR MOSFET in low output voltage applications, or gives SR duty cycle only considering the switching frequency in the ...
Haoran Li +6 more
semanticscholar +1 more source
Overview of Modulation Strategies for LLC Resonant Converter
IEEE transactions on power electronics, 2020In this article, based on the LLC resonant converter fundamental harmonic analysis model, the modulation strategies for LLC resonant converter can be categorized into the following three groups: 1) input voltage fundamental harmonic modulation; 2 ...
Yuqi Wei, Quanming Luo, A. Mantooth
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A 300-kHz 6.6-kW SiC Bidirectional LLC Onboard Charger
IEEE transactions on industrial electronics (1982. Print), 2020The reverse LLC voltage gain is lower than unity. The dc-link voltage is then lower than the peak grid voltage so that the buck type dc–ac converters cannot be grid-tied directly, which causes the LLC reverse operation difficult in bidirectional ...
Haoran Li +5 more
semanticscholar +1 more source
High-Efficiency Hybrid LLC Resonant Converter for On-Board Chargers of Plug-In Electric Vehicles
IEEE transactions on power electronics, 2020This article proposes a hybrid LLC resonant converter with three modes of operation for on-board chargers of electric vehicles. The converter can operate as a full-bridge converter, dual-phase half-bridge LLC converter, or single-phase half-bridge LLC ...
L. Ta, Ngoc Dat Dao, Dong-Choon Lee
semanticscholar +1 more source