CCM中峰值电流型控制PWM DC-DC降压变换器内环的音频敏感性

Nisha Kondrath, M. Kazimierczuk
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引用次数: 14

摘要

提出了一个包含前馈增益的完整方框图,用于推导工作在连续导通模式下的峰值电流模式控制的PWM dc-dc变换器的内电流环路的音频敏感性。推导了峰值电流模式控制的PWM dc-dc降压变换器的无前馈增益和带前馈增益的音频敏感性传递函数以及所需的功率级传递函数。在给定扰动比的情况下,用MATLAB给出了推导出的音频敏感性传递函数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Audio-susceptibility of the inner-loop of peak current-mode controlled PWM DC-DC buck converter in CCM
A complete block diagram including feedforward gains to derive the audio-susceptibility for the inner-current loop of peak current-mode controlled PWM dc-dc converter operating in continuous conduction mode is proposed. Audio-susceptibility transfer functions without and with feed-forward gains along with required power-stage transfer functions are derived for peak current-mode controlled PWM dc-dc buck converter. The derived audio-susceptibility transfer functions are illustrated for given values of perturbation ratio using MATLAB.
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