摘要
对以UC1854B为核心组成的有源功率因数校正(APFC)电路进行分析,在PSpice平台基础上建立了UC1854B电压环路、电流环路的数学模型,经仿真模型与实验结果的对比,PF值的误差约为0.1%,畸变总失真THD的误差约为2%,从而验证了仿真模型的正确。采用该控制方式的电路能有效降低电流谐波干扰、降低电源模块的电磁干扰(EM I)。
Analysed the circuit of APFC in the key of UC1854B, and the model of the voltage and current loops is established Based PSpice. Compared simulation model with experiment result, the PF error is 0.1% , and the THD error is 2% . As a result ,the simulation model is proved right. The circuit which adopts this control way can depress the interfere of current harmonic emission and reduce EMI of power supply module.
出处
《航空计算技术》
2007年第2期73-76,共4页
Aeronautical Computing Technique
