一种非线性控制方法的PFC技术

Study of a Non-Linear Control of the PFC Technology

区别于传统的单相功率因数校正电路采用的控制芯片,一种新的连续导通模式(CCM)的非线性功率因数校正控制芯片ICE1PCS01被采用,设计了一种全新的单相功率因数控制电路.与传统的PFC解决方案比较,这种新的集成芯片(IC)无需直接来自交流电源的正弦波参考信号.该芯片采用了电流平均值控制方法,使得功率因数可以达到1.在保证了功率因数和谐波分量达到要求的前提下,大大降低了PFC变换器的设计成本,在中小功率场合下低成本的PFC电路中有广阔的应用前景,也为功率因数校正提供了一个新的思路.

Being different from the traditional single-phase PFC circuit chips used to control,a new CCM non-linear PFC controller-ICE1PCS01 is used,and a new single-phase PFC control circuit is designed.Compared with the traditional PFC solutions,the new IC doesn t need the reference sine wave signal directly from AC power.The chip uses an average current control method,and PF can reach 1.To ensure the PF and harmonic components to meet the requirements under the premise,it greatly reduces the cost of the design of P...