不同控制策略的小功率Boost-APFC性能研究

Research on Low Power Boost-APFC with Different Control Strategies

为了使用于小功率场合的功率因数校正电路的综合性能最优化,本文研究了采用电流断续模式或临界断续模式和电流连续模式的小功率Boost-APFC的各项性能。通过仿真分析和实验比较相结合的方法,定量给出了各电路在输入电流特性、效率、EMI滤波等性能上的具体差异,并且考虑了使用SiC二极管后对电路性能的影响。

To optimize the performance of APFC,which is used in the low power situation, a research on low power Boost-APFC with different control strategies including CCM,DCM and Critical-DCM is done.Using stimulation and experiment,the differences of input current,efficiency and EMI filter,etc.are showed concretely and quantitatively. Besides,the influence of SiC diode on the performance of circuit is considered.