【摘要】 介绍了平均电流控制ＢＯＯＳＴ─ＰＦＣ电路的原理，建立了电流环和电压环的小信号简化模型，讨论了双环反馈环节的设计原则和方法，提出最优设计的思想和数学模型，并以一种ＢＯＯＳＴ─ＰＦＣ电路为例进行优化设计，计算模拟结果显示优化后有关指标好于优化前。更多还原

【Abstract】 In this paper,the most widely applicable power factor correction circuit-BOOST power factor correction circuit with average current control mode is presented.Considering response speed of the current loop much faster than the voltage loop,the simplified small signal models for both the current loop and the voltage loop of the circuit are derived respectively.Design principles for feedback compensations are discussed,in which loop bandwidth,noise suppress,ripple reducation and stability are liken into account as targets or constrains. Correspondent optimal mathematical modelS are provided with an example optimal design for verification更多还原