CAJ | 학술논문

以工作于电感电流连续导电模式(continuous conduction mode ， CM)的单电感双输出(single-inductor dual-output，IDO)Buck 变换器为研究对象，采用时间平均等效电路方法，给出SIDO CCM Buck变换器的直流电压增益及系统的输出/控制、交叉影响、耦合等传递函数。在此基础上，得到一种分析SIDO CCM Buck变换器交叉影响的功率级小信号模型。论文建立电压控制SIDO CCM Buck变换器的闭环小信号模型，分析变换器两路输出负载变化对两路输出支路的交叉影响。最后，通过仿真和实验结果验证理论分析的正确性。
이공작우전감전류련속도전모식(continuous conduction mode ， CM)적단전감쌍수출(single-inductor dual-output，IDO)Buck 변환기위연구대상，채용시간평균등효전로방법，급출SIDO CCM Buck변환기적직류전압증익급계통적수출/공제、교차영향、우합등전체함수。재차기출상，득도일충분석SIDO CCM Buck변환기교차영향적공솔급소신호모형。논문건립전압공제SIDO CCM Buck변환기적폐배소신호모형，분석변환기량로수출부재변화대량로수출지로적교차영향。최후，통과방진화실험결과험증이론분석적정학성。
As the single-inductor dual-output (SIDO) Buck converter in the continuous conduction mode (CCM) for the study, the expressions for DC voltage gains and control to the output transfer function, cross-regulation transfer function and cross-coupled transfer function of the system are derived by the time averaging equivalent circuit approach. Based on this, a power stage small signal model to analyze the cross-regulation of SIDO CCM Buck converters was proposed. With the voltage-feedback controlled SIDO CCM Buck converter as an example, the closed small signal model was established and the cross-regulation was analyzed with changing loads. Finally, the simulation and experiment results show that the theoretical analysis is reliable.