CAJ | 학술논문

利用小信号模型对开关电源控制器进行设计过程中常出现混沌分叉等不稳定现象。以工程设计的角度，建立了平均电流型BoostPFC的精确电路模型，分析了系统中存在的非线性现象，结合非线性分叉和混沌理论对这类非线性现象进行了详细的分析和推导。
이용소신호모형대개관전원공제기진행설계과정중상출현혼돈분차등불은정현상。이공정설계적각도，건립료평균전류형BoostPFC적정학전로모형，분석료계통중존재적비선성현상，결합비선성분차화혼돈이론대저류비선성현상진행료상세적분석화추도。
Instability phenomenon such as chaos and bifurcation often appears during the design of power supply controller based on small-signal model. In this paper, an average current Boost PFC circuit model was setup from a view of engineer design, and the nonlinear instability phenomenon existed in this system was analyzed. This design was prepared for establishing the model of whole circuit and for the further analysis. Nonlinear phenomenon by theoretic analysis is also described based on bifurcation and chaos theory.