首页>
外国专利>
Method of controlling phase-shift full-bridge converter in light load operation
Method of controlling phase-shift full-bridge converter in light load operation
展开▼
机译:在轻负载下控制相移全桥变换器的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method of controlling a phase-shift full-bridge (PSFB) converter in a light load operation is provided to switch control modes of the PSFB converter by detecting magnetizing current of a transformer thereof. The method includes following steps: First, the PSFB converter is operated in an extended PSFB control mode when the magnetizing current is larger. Afterward, the PSFB converter is operated in a modified PSFB control mode when the magnetizing current is gradually reduced and electric charges transported by the residual magnetizing current near to or less than a half of the DC input voltage. Finally, the optimal degree of soft switching of the PSFB converter is implemented when the PSFB converter is operated at the modified PSFB control mode. Accordingly, it is to improve overall efficiency, reduce switching losses, and achieve electromagnetic compatibility.
展开▼