CAJ | 학술논문

以反馈系数 K为参数，研究线性模式开关电容DC‐DC变换器的非线性行为并得到分岔图。当反馈系数比较大时，系统出现混沌现象。基于减小反馈系数、提高稳定性的思想，提出了在基准电压输入端添加基准电压调整模块的拓扑结构，增加的基准电压调整模块由两级运放组成。分析了增加基准电压调整模块前后变换器的反馈系数，并对其进行了仿真，得到了输出电压的时域波形和相图。仿真的结果表明，所加入的基准电压调整模块能有效地抑制混沌现象，改善系统的稳定性。
이반궤계수 K위삼수，연구선성모식개관전용DC‐DC변환기적비선성행위병득도분차도。당반궤계수비교대시，계통출현혼돈현상。기우감소반궤계수、제고은정성적사상，제출료재기준전압수입단첨가기준전압조정모괴적탁복결구，증가적기준전압조정모괴유량급운방조성。분석료증가기준전압조정모괴전후변환기적반궤계수，병대기진행료방진，득도료수출전압적시역파형화상도。방진적결과표명，소가입적기준전압조정모괴능유효지억제혼돈현상，개선계통적은정성。
This paper studies the bifurcation and non‐linear dynamic behaviors of the linear‐mode switched‐capacitor DC‐DC converter with the parameter K and the fact that the system appears chaotic when the feedback coefficient is relatively large . In this paper we propose converter topology by increasing a reference voltage regulator module in the reference voltage input , which improves the system stability . The reference voltage regulator module consists of the two stage amplifier . In this study , the feedback coefficients of the converter with and without the reference voltage regulator module are analyzed , respectively . The output voltage of the time‐domain waveform and phase diagram are obtained through the simulation Simulation shows that the reference voltage regulator module added can effectively suppress the chaos and improve the system stability .