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拓扑与电路 DC-DC变换器 充电桩 功率模块 ★ 3.0

一种用于高输入、低电压和大输出电流应用,采用串联电容全桥配置和反向耦合倍流整流器的高效率IPT系统

A High-Efficiency IPT System With Series-Capacitor Full-Bridge Configuration and Inverse Coupled Current Doubler Rectifier for High-Input, Low-Voltage, and High Output Current Applications

语言:

中文摘要

针对高压输入、低压大电流输出的感应电能传输(IPT)系统,传统方案面临次级侧导通损耗高及高变比设计困难等挑战。本文提出了一种串联电容全桥配置与反向耦合倍流整流器相结合的拓扑,有效降低了次级侧电流应力与损耗,优化了高变比下的系统设计难度,显著提升了转换效率。

English Abstract

Different from the widely used high-voltage (HV) inductive power transfer (IPT) systems, the low-voltage IPT systems with HV input suffer from the following challenges: the high output current brings high conduction losses in the secondary side, especially at the receiver coil; and the HV conversion ratio, such as 400 V input and 24 V output, results in the difficulties in designing the compensati...
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SunView 深度解读

该研究提出的高效率大电流DC-DC拓扑对阳光电源的电动汽车充电桩业务具有参考价值。随着大功率快充技术的发展,充电模块需在保持高功率密度的同时降低导通损耗。该拓扑中采用的串联电容全桥与倍流整流技术,可有效优化充电模块在高压输入、低压大电流工况下的热管理与效率表现。建议研发团队评估该电路在模块化充电桩中的应用潜力,以提升产品在复杂工况下的能效水平,并探索其在储能系统DC-DC变换环节中降低损耗的可行性。