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用于调频扩频感应电能传输的调谐电容调节

Reducing/Increasing Tuning Capacitor for Frequency-Modulated Spread-Spectrum Inductive Power Transfer

语言:

中文摘要

在调频扩频(FMSS)EMI抑制技术中,发射端开关频率在标称频率上下波动。这种操作会导致串联谐振逆变器出现零电压开关(ZVS)失效及输出电流衰减,主要源于固定LC谐振频率与调制开关频率之间的失配问题。

English Abstract

In frequency-modulated spread-spectrum (FMSS) EMI suppression, the switching frequency of the transmitter is continuously modulated across below and above the nominal frequency. This operation gives challenges to series-resonant inverter, such as zero-voltage switching failure and output current degradation, which occur due to mismatch between the fixed LC resonance frequency and the modulated swi...
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SunView 深度解读

该文献探讨的调频扩频(FMSS)技术及谐振频率失配问题,对阳光电源的电力电子变换器设计具有参考价值。在充电桩(EV Charger)及储能变流器(PCS)的研发中,EMI抑制是关键挑战。虽然该文聚焦于感应电能传输,但其提出的针对变频工况下的ZVS优化策略,可为阳光电源在提升高频化功率模块效率、优化宽范围输出下的软开关控制策略提供技术借鉴,有助于进一步降低产品电磁干扰并提升功率密度。