Buck DC-DC变换器采用双电流抽运控制技术实现快速瞬态响应

2018 3rd International Conference on Intelligent Green Building and Smart Grid (IGBSG) Pub Date : 2018-04-01 DOI:10.1109/IGBSG.2018.8393543

Yi-Chieh Hsu, Li-Sheng Hsu, Jing-Yuan Lin, C. C. Chen

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引用次数: 2

摘要

为了实现直流-直流变换器的快速瞬态响应，本文提出了双电流抽运控制技术。采用电流缓冲器与dc-dc变换器和误差放大器的输出节点提供额外的电流路径。该方法可加快误差放大器的输出电平和快速充放电输出电容。采用台积电0.35μm 2P4M CMOS工艺制作了双电流抽运控制技术的dc-dc变换器。负载电流从50mA到500mA。升压和降压瞬时恢复时间分别为2.3μs和1.2μs。仿真结果表明，与传统的dc-dc变换器相比，采用双电流抽运控制技术的dc-dc变换器的暂态恢复时间提高了4倍以上。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Buck DC-DC converter for fast transient response using dual current pumping control technique

The dual current pumping control technique is presented in this paper to achieve fast-transient response for dc-dc converters. The current buffers are adopted to provide additional current paths with output nodes of dc-dc converter and error amplifier. This method leads to accelerating output level of error amplifier and charging/discharging output capacitor rapidly. The proposed dc-dc converter with dual current pumping control technique is fabricated using TSMC 0.35μm 2P4M CMOS technology. Load current from 50mA to 500mA. Transient recovery time with step-up and step-down are 2.3μs and 1.2μs, respectively. Compared with the conventional dc-dc converter, simulation results demonstrate that the transient recovery time of proposed dc-dc converter with dual current pumping control technique is improved over four times.

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2018 3rd International Conference on Intelligent Green Building and Smart Grid (IGBSG)

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