Design of a Quadratic Slope Compensation Circuit for Buck DC-DC Converter

CHEN Yuan-long; ZHANG Tao; WANG Ying; ZHANG Guo-jun

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Design of a Quadratic Slope Compensation Circuit for Buck DC-DC Converter

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- Design of a Quadratic Slope Compensation Circuit for Buck DC-DC Converter
- Vol. 33, Issue 8, Pages: 82-85(2016)
- 作者机构：
  
  电子科技大学电子薄膜与集成器件国家重点实验室机构,四川,成都,610054
- 作者简介：
- 基金信息：
- DOI：
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- Published：2016
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陈远龙, 张涛, 王影, 张国俊. 降压型DC-DC转换器的二次斜坡补偿电路设计[J]. 微电子学与计算机, 2016, 33(8): 82-85, 91.

CHEN Yuan-long, ZHANG Tao, WANG Ying, et al. Design of a Quadratic Slope Compensation Circuit for Buck DC-DC Converter[J]. 2016, 33(8): 82-85.
陈远龙, 张涛, 王影, 张国俊. 降压型DC-DC转换器的二次斜坡补偿电路设计[J]. 微电子学与计算机, 2016, 33(8): 82-85, 91. DOI：

CHEN Yuan-long, ZHANG Tao, WANG Ying, et al. Design of a Quadratic Slope Compensation Circuit for Buck DC-DC Converter[J]. 2016, 33(8): 82-85. DOI：

摘要

考虑到传统线性斜坡补偿对开关电源系统带载能力和瞬态响应的影响

利用与频率成正比的充放电电流形成一次斜坡电流

再利用其一次特性与双极性晶体管的输入、输出特性实现了一种工作频率可变的

斜坡峰值电流随占空比变化的二次特性的斜坡补偿

使斜坡补偿所带来的不足有效减小.最后利用HHNEC 0.35 m的BCD工艺

及Hspice仿真软件对电路进行了仿真验证.

Abstract

Considering the influence on load capacity and transient response caused by the traditional linear slope compensation The proportional to the frequency of the charge and discharge current is used to form the first order slope current

then use it together with the input and output of the bipolar transistor characteristics realize quadratic slope compensation circuit which can work in different frequency and slope peak current changed with the duty cycle was proposed. The lack of the slope compensation effectively reduced. its performances have been verified by Hspice simulation using the 0.5 um BCD process.

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references

薛彦红, 吴金, 张亮. 具有二次特性的斜坡补偿电路的设计[C]//第五届中国测试学术会. 中国苏州, 2008: 107-110.

Modelling. Analysis and Compensation of the Current Mode Converter Unitrode Application Note: 3. 44~3.46. [R]. 1999.

Liao C. Switching regulator with slope compensation independent of changes in switching frequency. US: Patent 7, 342, 392[P]. 2008-3-11.

王留杰王松林. 峰值电流模升压变换器分段线性斜坡补偿设计[J]. 固体电子学研究与进展, 2007, 27(2) 269-274. DOI: 269

李演明, 来新泉, 王红义. 降压型DC-DC转换器自调节型斜坡补偿电路设计[J]. 微电子学与计算机, 2005, 22(3): 274-276. DOI: 274

周泽坤, 王锐, 张波, 等. 一种自适应斜坡补偿电路[J]. 电子科技大学学报, 2007, 36(1): 47-49. DOI: 47

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Related Institution

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