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拓扑与电路 PFC整流 功率模块 户用光伏 ★ 3.0

用于输入电流整形且采用共源共栅结构的串联模块反激式PFC

Flyback PFC With a Series-Pass Module in Cascode Structure for Input Current Shaping

语言:

中文摘要

本文提出了一种利用串联模块(SPM)进行输入电流整形的反激式功率因数校正(PFC)电路。通过SPM控制输入电流波形,使其与电源电压同频同相,同时通过调节电流幅值实现输出电压稳压。SPM采用两个串联功率半导体器件组成的共源共栅结构实现。

English Abstract

A flyback power factor corrector (PFC) using a series-pass module (SPM) to shape its input current is presented. The input current is profiled by the SPM with its waveform controlled to be in the same wave shape and phase with the supply voltage and its magnitude controlled to regulate the output voltage. The SPM is constructed by two series-connected power semiconductor devices in a cascode struc...
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SunView 深度解读

该拓扑通过串联模块优化了反激式PFC的电流整形能力,对于阳光电源的户用光伏逆变器及充电桩产品线具有参考价值。反激拓扑常用于小功率辅助电源或户用储能系统的BMS供电模块,引入共源共栅(Cascode)结构有助于在高压输入环境下提升开关性能并简化驱动设计。建议研发团队关注该拓扑在提升轻载效率和降低EMI方面的表现,评估其在户用储能系统辅助电源或小型化充电模块中的应用潜力,以进一步优化产品功率密度。