有和没有零电感电流停留时间的开关稳压器功率级建模

F. Lee, Y. Yu, J. Triner
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引用次数: 22

摘要

采用状态空间技术来推导buck、boost和buck/boost转换器功率级的精确模型,这些功率级在电感电流为零或不为零的情况下工作。提出了一种将无停留时间的电感-电流连续模式作为停留时间消失时的一种特殊情况处理的推广方法。当停留时间出现时,系统行为的突变,包括系统阶数的降低,都是通过分析实验证明的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Modeling of switching regulator power stages with & without zero-inductor-current dwell time
State space techniques are employed to derive accurate models for buck, boost, and buck/boost converter power stages operating with and without zero-inductor-current dwell time. A generalized procedure is developed which treats the continuous-inductor-current mode without the dwell time as a special case of the discontinuous-current mode, when the dwell time vanishes. An abrupt change of system behavior including a reduction of the system order when the dwell time appears is shown both analytically experimentally.
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