基于IR1150S芯片的BoostPFC变换器分析与设计

传统的功率因数校正（PFC）控制方法需耍检测输入电流、输入电压、输出电流，且电路中需使用乘法器，控制系统复杂。本文基于单周期控制芯片IRll50S引入一种单周期闭环控制方法，无需检测输入电压，无需使用乘法器，从而简化了系统，降低了成本。文章论述了该方法的工作原理，参数殴计。，并实验证明了该控制方法的正确性和可行性。

Analysis and Design of Boost PFC Converters based on IC IRl150S

The conventional PFC control method is necessary to detect the input current, the input voltage and the output current. In the circuit a multiplier is also needed, and the control system is complex. A one-cycle loop control method is introduced on the basis of one- cycle control（OCC） IC IR1150S, without detecting the input voltage and using the multiplier. This method simplified the system and reduced the cost. This paper discussed the working principle of this method, and designed theparameters, finally, an experimental study is used to prove the correctness and feasibility of this control method.