Research on the performance of LLC resonant converter considering the influence of parasitic parameters

Zhou, Ke; Wang, Xiao; Yang, Qianwen

doi:10.1109/ispec50848.2020.9351089

Cited by 6 publications

(4 citation statements)

References 2 publications

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Section: Operating Principlesmentioning

confidence: 99%

“…LLC resonant converters typically operate either in the inductive region or the resistive region, which are differentiated by the current mode of the converter. Figure 2 is a waveform diagram of the LLC resonant converter operating in the resistive region [14]. LLC resonant converters typically operate either in the inductive region or the resistive region, which are differentiated by the current mode of the converter.…”

Section: Operating Principlesmentioning

confidence: 99%

“…where t ZVS,exc : excessive time in the ZVS state t ZVS,mod : optimal time in the ZVS state Equation (14) indicates that when the dead time exceeds t ZVS,mod , for each additional 10 ns, the conduction loss by the body diode increases by 8.2 µW.…”

Section: Effect Of Output Parasitic Capacitor On Converter Efficiencymentioning

confidence: 99%

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Effect of Metal Oxide Semiconductor Field-Effect Transistor Output Parasitic Capacitance on Efficiency in Full-Bridge LLC DC/DC Converters

Chen,

Hsieh

2024

Micromachines

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This study analyzed the efficiency impact of a MOSFET output parasitic capacitance (Coss) on a full-bridge LLC DC/DC converter. The core of the converter was the control chip for a half-bridge LLC DC/DC converter, and the output signal of the chip controlled the first-arm power transistors of the primary side of the converter. The coupling transformer reversed the output signal to control the primary side of the second arm of the power transistor. The full-bridge converter comprises a half-bridge control chip that converts the high-voltage DC power supply to a low-voltage DC power supply, which is then synchronously rectified and supplied to the load. The primary side of the power transistor achieves a zero-voltage switching (ZVS) state through the resonance of the LLC converter. This design gives the converter high power density and a simple structure. Furthermore, to determine the appropriate output parasitic capacitance for improving converter efficiency, this study analyzed the effect of the output parasitic capacitance on the switching loss and conduction loss of the power transistor on the basis of the output parasitic capacitance of the primary-side power transistor. A 1200 W converter prototype was fabricated in this study, and when the output was 300 W, efficiency increased from 92.603% to 93.462%, a 0.859% increase. The empirical results verified the feasibility of the proposed theory.

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Section: Operating Principlesmentioning

confidence: 99%

Section: Operating Principlesmentioning

confidence: 99%

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Effect of Metal Oxide Semiconductor Field-Effect Transistor Output Parasitic Capacitance on Efficiency in Full-Bridge LLC DC/DC Converters

Chen,

Hsieh

2024

Micromachines

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“…The research related to power electronic devices (PEDs) is mainly aimed at creating new circuit solutions or improving existing ones, as well as at improving the efficiency of PEDs, improving the switching of power elements, etc. [1][2][3][4][5][6][7][8][9][10][11]. In the last few years, the research related to renewable energy sources, electric vehicles, and energy storage cells has also been increasing due to their rapid integration into people's daily lives.…”

Section: Introductionmentioning

confidence: 99%

Study the Level of Network Security and Penetration Tests on Power Electronic Device

Nedyalkov

2024

Computers

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This work demonstrates the feasibility of using Kali Linux in the process of power electronic device research. The novelty in this work is the use of Kali Linux in the process of power electronic device research. This operating system is mainly used for the penetration testing of various communication devices but not for power electronic device research. The aim of this work is to study the level of network security (the type of security vulnerabilities that a power electronic device has) and whether the data exchange between the power electronic device and the monitoring and control center is secure. Additionally, penetration testing has been carried out. Kali Linux was used to implement these tasks. Penetration testing was performed to verify how the studied power electronic device reacted to various TCP DoS attacks—could it be accessed, was it blocked, etc. Kali Linux and some of the tools built into the operating system—Nmap, hping3, Wireshark, Burp Suite Community Edition—were used for this study. During the penetration tests, a characterization of the traffic being processed/generated by the studied power electronic device was carried out to evaluate and analyze what impact each TCP DoS attack had on the device’s performance. In order to conduct the study, an experimental setup was designed. This experimental network was not connected to other networks, so the cyber attacks were controlled and confined within the experimental network. The research carried out validated the use of Kali Linux for the study of power electronic devices. From the obtained results, it is found that the studied power electronic device provides a certain level of network security, but the data exchange is insecure.

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Research on Full-Bridge LLC Resonant Circuit under Compound Control of Input Compensation

et al. 2023

2023 5th Asia Energy and Electrical Engineering Symposium (AEEES)

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Research on the performance of LLC resonant converter considering the influence of parasitic parameters

Cited by 6 publications

References 2 publications

Effect of Metal Oxide Semiconductor Field-Effect Transistor Output Parasitic Capacitance on Efficiency in Full-Bridge LLC DC/DC Converters

Effect of Metal Oxide Semiconductor Field-Effect Transistor Output Parasitic Capacitance on Efficiency in Full-Bridge LLC DC/DC Converters

Study the Level of Network Security and Penetration Tests on Power Electronic Device

Research on Full-Bridge LLC Resonant Circuit under Compound Control of Input Compensation

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