Research of Voltage-Mode Buck Converter Type 3A Compensator

LI Yan-li; FENG Quan-yuan

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Research of Voltage-Mode Buck Converter Type 3A Compensator

更新时间：2026-09-04

- Research of Voltage-Mode Buck Converter Type 3A Compensator
- Vol. 31, Issue 12, Pages: 136-139(2014)
- 作者机构：
  
  西南交通大学信息科学与技术学院微电子研究所,四川,成都,610031
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2014
- 稿件说明：
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李艳丽, 冯全源. 电压模式Buck变换器type 3A型补偿器的研究[J]. 微电子学与计算机, 2014, 31(12): 136-139.

LI Yan-li, FENG Quan-yuan. Research of Voltage-Mode Buck Converter Type 3A Compensator[J]. 2014, 31(12): 136-139.
李艳丽, 冯全源. 电压模式Buck变换器type 3A型补偿器的研究[J]. 微电子学与计算机, 2014, 31(12): 136-139. DOI：

LI Yan-li, FENG Quan-yuan. Research of Voltage-Mode Buck Converter Type 3A Compensator[J]. 2014, 31(12): 136-139. DOI：

摘要

针对电压模式Buck型开关电源type 3A型补偿器进行研究.对type 3A型补偿网络的穿越频率进行详细的推导

并得出该穿越频率与负载电流无关.在输入电压和输出电压发生较大变化时

只需调节补偿网络外部电容Cff

就能得到良好的相位裕度和环路稳定性.采用Matlab和Hspice对环路进行仿真

仿真结果验证了对type 3A型补偿器理论研究的合理性.

Abstract

A research is proposed for Voltage-mode Buck converter type 3A compensator in this paper.The cross frequency of type 3A compensator is derived in detail

and it gets the cross frequency has nothing to do with load current.When input voltage and output voltage change obviously

to get good phase margin and loop stability

it only to adjust external capacitance Cff of the compensation network.Matlab and Hspice is adopted in loop simulation

and it verifies the theory study of type 3A compensation.

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