Efficiency study for a 150W LLC resonant converter

Cheng, Chun‐An; Chen, Hung−Wen; Chang, En-Chih; Yen, Chun-Hsien; Lin, Kun-Jheng

doi:10.1109/peds.2009.5385876

Cited by 9 publications

(5 citation statements)

References 3 publications

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“…The tank circuit helps filter the high harmonic currents. Due to the inductance, the primary current lags behind the applied voltage, helping to achieve zerovoltage switching [21] of the metal-oxide-semiconductor field-effect transistor (MOSFET) [24]. The MOSFET is switched on when there is a current flow in its antiparallel diode since the voltage over it is zero at this point.…”

Section: Llc Series Resonant Convertermentioning

confidence: 99%

“…Detailed analyses of LLC converters can be found in the literature, e.g. [2,[22][23][24][25]. The secondary rectifier circuit can be a full-bridge type or half-bridge center tap.…”

Section: Llc Series Resonant Convertermentioning

confidence: 99%

“…8 shows that lower 𝑄 value curves represent lighter load conditions, whereas higher 𝑄 curves represent higher load conditions. All 𝑄 curves are then shown to cross at one resonance frequency point (𝑥1 = 1 or 𝐹 𝑠𝑤 = 𝐹 𝑟1 ) and exhibit a unity gain [24].…”

Section: Analysis Of the Llc Series Resonant Con-vertermentioning

confidence: 99%

“…The shaded area on the left-hand side is the capacitive operating region and the inductive operating region of the LLC converter on the right. The purpose of defining the operating regions is to ensure they always perform in the inductive region of the entire input voltage, as well as the load range [24]. The converter's operation should be within the inductive region to perform zero-voltage switching (ZVS).…”

Section: Analysis Of the Llc Series Resonant Con-vertermentioning

confidence: 99%

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Performance Comparison Analysis of a High Voltage DC LLC Resonant Converter for Telecom and Datacenter Applications

Darla

Chitra

2023

ECTI-EEC

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Intermediate Bus Architecture (IBA) is used for power distribution in information communication technology (ICT) equipment due to the flexibility of its power distribution and cost-effectiveness compared to centralized or DC-mediated power. The reason for IBA's good performance in this context is its greater reliability and efficient Intermediate Bus Converter (IBC). Existing IBAs comprise low-voltage systems with multiple power, resulting in power loss. This study outlines the need for a high-voltage DC-to-DC converter to solve the problems associated with conventional 48 VDC converters. A 300 W LLC series resonant converter is utilized for the design and analysis of converter efficiency and losses across various input voltages. The results indicate that the maximum converter efficiency is >92% at full load. MATHCAD is used to analyze the performance of the LLC converter and understand the suitable operating zones for zero-voltage-switching. The LLC converter's efficiency is investigated for multiple input voltage ranges. The LLC converter is designed and developed in MATLAB and the results of the simulation are presented. Trade-offs in the LLC converter's design are also discussed, with the goal of operating the converter in an optimal manner and achieving the maximum possible efficiency.

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Section: Llc Series Resonant Convertermentioning

confidence: 99%

“…Detailed analyses of LLC converters can be found in the literature, e.g. [2,[22][23][24][25]. The secondary rectifier circuit can be a full-bridge type or half-bridge center tap.…”

Section: Llc Series Resonant Convertermentioning

confidence: 99%

Section: Analysis Of the Llc Series Resonant Con-vertermentioning

confidence: 99%

Section: Analysis Of the Llc Series Resonant Con-vertermentioning

confidence: 99%

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Performance Comparison Analysis of a High Voltage DC LLC Resonant Converter for Telecom and Datacenter Applications

Darla

Chitra

2023

ECTI-EEC

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“…For common applications, LLC converters feature high full-load efficiency but provide poor system efficiency during standby because of their large switching losses. They are also compatible with daily-increasing stringent energy regulations and provide fabulous standby efficiency [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Standby Efficiency Improvement for a Line Level Control Resonant Converter Based on Solar Power Systems

Kuo

Tsou

2015

Energies

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This paper proposes a new scheme to improve the standby efficiency of the high-power half-bridge line level control (LLC) resonant converter. This new circuit is applicable to improving the efficiency of the renewable energy generation system in distributed power systems. The main purpose is to achieve high-efficiency solar and wind power and stable output under different load conditions. In comparison with the traditional one, this novel method can improve standby efficiency at standby. The system characteristics of this proposed method have been analyzed through detailed simulations, which prove its feasibility.

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