摘要
有源功率因数校正电路是一个双闭环控制系统。本文从控制理论的角度阐述了有源功率因数校正电路的控制机理,给出了各环节的传递函数,以及系统的闭环结构图,分别阐述了电流内环和电压外环的作用,从无差跟踪的角度说明了有源功率因数校正电路使功率因数接近于1的机理。
Active power factor correction （APFC） is a closed double-loop control system. This article explains the control mechanism of APFC circuit in terms of control theory, provides the transmission function of every link and the systematic closed loop Structure chart, explains function of current inner loop and voltage external loop respectively, and Proves that APFC Circuit makes Power factor approach 1 in term of no difference following.
出处
《电源世界》
2007年第12期37-39,共3页
The World of Power Supply
