用交错技术分析LLC谐振变换器在恒定开关频率下的开环和闭环

2017 International Conference on Information Communication and Embedded Systems (ICICES) Pub Date : 2017-02-01 DOI:10.1109/ICICES.2017.8070783

M. D. Dharshinii, K. Pradeepa, S. Akshaya, S. Hema

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引用次数: 0

摘要

利用MATLAB/Simulink对采用交错技术工作在恒开关频率下的LLC谐振变换器进行了分析。该LLC谐振变换器具有效率高、功率密度高、成本低等优点。它们可以在空载条件下工作，也可以在额定输入电压下谐振工作。SCC(开关控制电容器)解决了LLC谐振变换器的负载分担问题。在交错技术中，有限责任公司的所有级都以相同的开关频率工作，以消除电流纹波。提出了采用PI滤波器来降低开关损耗和电压纹波的方法。

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Open loop and closed loop analysis of LLC resonant converter operating at constant switching frequency by interleaving technique

The LLC resonant converter operating at constant switching frequency by interleaving technique has been analyzed using MATLAB/Simulink. The LLC resonant converter has the advantages of high efficiency, high power density, and low cost. They can be operated at no load condition and at resonance for nominal input voltage. The load sharing problem of LLC resonant converter has been overcome by SCC (Switch Controlled Capacitor). In interleaving technique, all the stages of LLC operate at same switching frequency for the purpose of current ripple cancellation. It has been proposed to reduce the switching losses and voltage ripple by using a PI Filter.

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2017 International Conference on Information Communication and Embedded Systems (ICICES)

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