V2EX flyback converter

Flyback Converter

定义 Definition

反激变换器:一种常见的开关电源拓扑,通过变压器(耦合电感)在开关导通时储能、关断时把能量释放到输出端,实现升压或降压,并通常提供电气隔离。也常用于多路输出的小中功率电源(如充电器、适配器)。

发音 Pronunciation (IPA)

/flabk knvtr/

例句 Examples

A flyback converter is often used in phone chargers.
反激变换器常用于手机充电器中。

In an isolated flyback converter, the transformer stores energy during the switch on-time and delivers it to the output when the switch turns off.
在隔离式反激变换器中,变压器在开关导通期间储能,并在开关关断时将能量传递到输出端。

词源 Etymology

flyback 原意是“回扫/回跳”,早期常用来描述阴极射线管(CRT)等电路中的“回扫”过程;在电源领域中,它形象地指能量在开关关断后“回到”次级侧输出的传递阶段。converter 来自拉丁语 convertere(“转变、转换”),合起来表示“用回扫式能量传递机制进行电能转换的电路”。

相关词 Related Words

文献作品 Literary Works

  • Switching Power Supply Design(Abraham I. Pressman 等):讨论反激等常见开关电源拓扑与设计要点。
  • Fundamentals of Power Electronics(Robert W. Erickson, Dragan Maksimovi):系统讲解反激变换器的工作机理与建模分析。
  • Power Electronics: Converters, Applications, and Design(Ned Mohan 等):在变换器章节中频繁出现并对比反激与正激等拓扑。
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