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拓扑与电路 DC-DC变换器 PWM控制 户用光伏 ★ 3.0

面向副边控制反激变换器的变导通时间控制方案

Variable on-Time Control Scheme for the Secondary-Side Controlled Flyback Converter

语言:

中文摘要

本文提出了一种针对副边控制反激变换器的新型控制策略,通过改进漏源电压检测技术,实现了更精确的栅极驱动信号并降低了损耗。与现有方案相比,该方法在全负载范围内保持恒定开关频率,且无需额外硬件,提升了变换器的效率与控制性能。

English Abstract

This paper presents an analysis of a novel control approach for the secondary side controlled flyback concept, along with improved drain-source voltage sensing for more precise gate signals and reduced losses. In contrast to the existing control scheme for this concept, the approach presented here sustains constant switching frequency throughout the load range without any additional hardware, boos...
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SunView 深度解读

该技术主要涉及小功率DC-DC变换拓扑的优化,对阳光电源的户用光伏逆变器及微型逆变器产品线具有参考价值。通过副边控制技术优化反激变换器,有助于提升户用场景下低功率段的转换效率,并简化电路设计以降低成本。建议研发团队关注该方案在轻载效率提升方面的表现,评估其在户用储能系统辅助电源或微型逆变器中的应用潜力,以进一步增强阳光电源在分布式光伏领域的竞争力。