| 电流模降压变换器抗干扰电流采样电路设计 |
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| 引用本文： | 袁冰,来新泉,李演明,叶强,贾新章.电流模降压变换器抗干扰电流采样电路设计[J].半导体学报,2009,30(4):045009-5. |
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| 作者姓名： | 袁冰 来新泉 李演明 叶强 贾新章 |
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| 作者单位： | Institute;Electronic;Xidian;University;School;Microelectronics; |
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| 基金项目： | 部委基金D1120060967, Y30306270105 |
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| 摘 要： | A novel anti-jamming integrated CMOS current-sensing circuit for current-mode buck regulators is presented. Based on the widely-used traditional current-sensing structure, anti-jamming performance is improved significantly by adding on-chip capacitors and one-shot circuit. Also the transient response is faster through the introduction of current offset. The circuit is concise, simple to implement and suits for SoC applications with single power supply. A dualoutput current-mode DC-DC buck converter with proposed structure has been fabricated with a 0.5 μm CMOS process for validation. In the 2.5–5.5 V input range, the two channels work steadily in the load current range of 0–600 mA. And the measured maximum efficiency is up to 96%.
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| 关 键 词： | 降压转换器 电流模式 感应电路 稳压器 干扰电流 CMOS工艺 抗干扰性能 设计 |
Design of anti-jamming current-sensing circuit for current-mode buck regulator |
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| Yuan Bing,Lai Xinquan,Li Yanming,Ye Qiang and Jia Xinzhang.Design of anti-jamming current-sensing circuit for current-mode buck regulator[J].Chinese Journal of Semiconductors,2009,30(4):045009-5. |
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| Authors: | Yuan Bing Lai Xinquan Li Yanming Ye Qiang and Jia Xinzhang |
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| Institution: | Institute of Electronic CAD, Xidian University, Xi'an 710071, China;School of Microelectronics, Xidian University, Xi'an 710071, China;Institute of Electronic CAD, Xidian University, Xi'an 710071, China;School of Microelectronics, Xidian University, Xi'an 710071, China;Institute of Electronic CAD, Xidian University, Xi'an 710071, China;School of Microelectronics, Xidian University, Xi'an 710071, China |
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| Abstract: | A novel anti-jamming integrated CMOS current-sensing circuit for current-mode buck regulators is pre- sented. Based on the widely-used traditional current-sensing structure, anti-jamming performance is improved sig- nificantly by adding on-chip capacitors and one-shot circuit. Also the transient response is faster through the in- troduction of current offset. The circuit is concise, simple to implement and suits for SoC applications with single power supply. A dual-output current-mode DC-DC buck converter w... |
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| Keywords: | buck regulators current-mode control current-sensing circuit anti-jamming |
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