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可提高Buck型DC/DC转换器带载能力的斜坡补偿设计 被引量：7

Design of Slope Compensation to Improve Loading Capacity of Buck DC/DC Converters
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摘要 提出了一种新颖的可提高Buck型DC/DC转换器带载能力的斜坡补偿设计。针对电流模DC/DC转换器在大占空比下的不稳定性,以及采用斜坡补偿后系统带载能力下降等问题,通过产生分段线性斜坡补偿信号并进行箝位,既保证了系统的稳定性,又提高了系统的带载能力。该电路基于0.5μm CMOS工艺设计,在不同的温度与电源电压下,经Hspice仿真验证,达到设计目标。 A novel slope compensation teclamque is presented to improve the loading capacity of buck DC/DC converters. To solve problems such as inherent instability of DC/DC converters at large duty cycle and its decreased loading capacity as a result of traditional slope compensation, a piecewise linear slope compensation circuit and a clamping circuit are designed, which improves both stability and loading capacity of the system. Based on a 0. 5 tan CMOS process, the circuit is verified by Hspice simulation under different temperatures and supply power. Anticipated results have been achieved.
作者 来新泉 郭仲杰 张倩
机构地区 西安电子科技大学CAD所
出处 《微电子学》 CAS CSCD 北大核心 2007年第1期33-37,共5页 Microelectronics
基金 国家自然科学基金资助项目(60172004) 国家教育部博士点基金资助项目(20010701003) 西安应用材料创新基金资助项目(XA-AM-200504)
关键词 电流模 DC/DC转换器 斜坡补偿 带载能力 Current mode DC/DC converter Slope compensation Loading capacity
分类号 TN432 [电子电信—微电子学与固体电子学]
  • 相关文献

参考文献6

  • 1Baranovksi A L,Giidner H.On the trade of ripple and spectral properties of chaotic DC/DC converters[A].Proc NOL TA'02[C].Xi'an,China.2002.150-158.
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  • 5王红义,来新泉,李玉山,张乔珍,陈富吉.一种新颖的BUCK型DC-DC芯片的抗振铃电路[J].电子学报,2006,34(2):361-364. 被引量：7
  • 6来新泉,周丽霞,陈富吉.升压型DC-DC转换器中的动态斜坡补偿电路设计[J].微电子学,2005,35(4):420-423. 被引量：22

二级参考文献14

  • 1Baranovksi A L, Giidner H. On the trade-off of ripple and spectral properties of chaotic DC-DC converters[A]. Proc NOLTA'02 [C]. Xi'an, China, 2002.
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  • 10Lai Xinquan,Jia Ligang,Hu Juncai,Li Xianrui.The design of a low voltage and high speed driver circuit for boost DC-DC converter[A].5th International Conference On ASICs Proceedings[C].Beijing:IEEE Press,2003.635-638.

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微电子学
2007年 第1期

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