| 低功耗无损电流检测技术的分析与设计 |
| |
| 引用本文： | 刘布民,蔡伟,陆铁军,王宗民.低功耗无损电流检测技术的分析与设计[J].电子科技大学学报（自然科学版）,2008,37(3):393-396. |
| |
| 作者姓名： | 刘布民 蔡伟 陆铁军 王宗民 |
| |
| 作者单位： | 1.电子科技大学微电子与固体电子学院 成都 610054; |
| |
| 摘 要： | 通过分析DC-DC电流模开关电源的结构,提出了一种新颖的低功耗无损电流检测技术,降低了开关电源的静态功耗。该技术实现了"虚拟"的无损电流检测电阻和一个低功耗高灵敏度的电流检测放大器。通过降低电流检测电路的功耗,优化了电流模开关电源控制环路的功耗,从而实现了静态功耗的最小化。基于无损电流检测技术设计,开关电源的静态功耗为61.22 mW,为典型情况的57.5%。
|
| 关 键 词： | 电流模 开关电源 无损电流检测 低功耗电流检测 寄生电阻 |
| 收稿时间： | 2007-11-24 |
| 修稿时间： | 2007年11月24 |
Low-Power Lossless Current Sensing in DC/DC Converter |
| |
| LIU Bu-min,CAI Wei,LU Tie-jun,WANG Zong-min.Low-Power Lossless Current Sensing in DC/DC Converter[J].Journal of University of Electronic Science and Technology of China,2008,37(3):393-396. |
| |
| Authors: | LIU Bu-min CAI Wei LU Tie-jun WANG Zong-min |
| |
| Affiliation: | 1.School of Microelectronics and Solid-State Electronics,University of Electronic Science and Technology of China Chengdu 6100541;2.Beijing Microelectronics Technology Institute Fengtai Beijing 100076 |
| |
| Abstract: | By analyzing the architecture of current mode DC-DC converter, a novel lossless low-power current-sensing technique for minimizing the static power of DC-DC converter is proposed in the paper. It adopts a lossless current-sensing method and an improved low power current amplifier. The proposed technique can reduce the power of current-sensing circuit and result in the static power optimization of current mode DC-DC converter. Simulation results show that static power of the current mode buck converter based on the proposed technique is 61.22mW, which is only 57.5% compared to the converter with the typical circuit. |
| |
| Keywords: | |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《电子科技大学学报（自然科学版）》浏览原始摘要信息 |
|
点击此处可从《电子科技大学学报（自然科学版）》下载全文 |
