APFC控制芯片MC33368的典型应用及改进  

Typical Application and Improvement of APFC IC M033368

作　　者：刘艳芳[1] 张波[1] 

机构地区：[1]华南理工大学电力学院,广州510640

出　　处：《电源世界》2008年第3期67-69,39,共4页The World of Power Supply

摘　　要：本文介绍了控制芯片MC33368在APFC电路中的典型应用,并基于此提出相应的改进方案。该芯片采用了峰值电流控制技术,零电流检测功能实现了电路的DCM-CCM临界工作模式,并具有外围电路简单、成本低、功率密度高、效率高、可靠性高等特点。In this paper, typical application of IC NC33368 in APFC circuit has been introduced, some improving case was presented. MC33368 take peak current control. Zero current detector to ensure DCM/CCM critical conduction operation MC33368 is optimized for high density power supplies requiring a minimum board area, reduced component count,low cost, high efficiency and high reliability.

关 键 词：MC33368 APFC 控制电路 

分 类 号：TM92[电气工程—电力电子与电力传动]