CCM降压变换器的闭环传递函数及频点频谱仿真

W. Ki, Lin Cheng, Chenchang Zhan
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引用次数: 1

摘要

系统地应用状态空间平均和摄动分析方法计算了工作在连续导通模式下的开关变换器的开环和闭环传递矩阵Tol和Tcl。电源抑制功能,输入阻抗和输出阻抗可以直接从Tcl中读出。提出了一种类似实际频谱测量过程的电路级仿真方法——频点频谱仿真来验证分析结果。
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Closed-loop transfer functions and frequency-point spectrum simulation of CCM buck converters
State-space averaging and perturbation analysis is systematically applied to compute the open-loop and closed-loop transfer matrices (Tol and Tcl) of switching converters working in continuous conduction mode. The power supply rejection function, input impedance and output impedance can be read off directly from Tcl. A circuit-level simulation method, the frequency-point spectrum simulation, is proposed that resembles the actual spectrum measurement procedure to verify the analytical results.
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