基于NCP1608B的功率因数校正电路设计

摘要

A 120 W active power factor correction (APFC) circuit based on NCP1608B with 90 ~ 260 Vac wide voltage input range was designed.The design process of circuit parameters and device selection principle were presented in detail.Finally the experimental data of waveforms was given and the experimental results showed that the circuit had a high efficiency and network side high power factor.The total harmonic distortion rate was low.%以功率因数控制芯片NCP1608B 为核心,设计了一种90~260 Vac宽电压输入范围的120 W有源功率因数校正(APFC)电路.文中较为详细地介绍了电路参数设计过程及器件选择依据,最后给出了实验波形等实验数据,实验结果表明该电路具有效率高、网侧功率因数高、总谐波畸变率低等优点.