摘要
有源功率因数校正(APFC)有临界连续导通(CRM)和连续导通(CCM)两种模式,其中对于100W以下的小功率场合,CRM模式APFC最常用。笔者尝试从一些电磁学中的基本公式出发,结合对升压电感的实际工作情况,详细推导了在CRM模式中磁芯大小及气隙的计算公式。
Active power factor correction (APFC) is classified to critical conduction mode (CRM) and continuous conduction mode(CCM). CRM-mode APFC is used usually if power is less than 100W. According to some basic formulas, and actual operation of boost inductor, calculation formulas of the core volume and air-gap were derived in detail.
出处
《磁性材料及器件》
CSCD
北大核心
2010年第5期48-50,56,共4页
Journal of Magnetic Materials and Devices
关键词
CRM模式
APFC
磁芯
critical conduction mode (CRM)
active power factor correction (APFC)
core