| 电流模式控制DC/DC转换器中的电流检测电路设计 |
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| 引用本文： | 彭晓金.电流模式控制DC/DC转换器中的电流检测电路设计[J].电子器件,2011,34(2):187-189. |
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| 作者姓名： | 彭晓金 |
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| 作者单位： | 华南理工大学电子与信息学院,广州,510640 |
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| 摘 要： | 应用于手机等通信电子产品电源系统的电流模式控制DC/DC转换器芯片,要求具有高性能电流检测电路.设计了一个高精度的电流检测电路,基于华润上华CSMC 0.5μmBiCMOS工艺库,利用Cadence Spectre软件进行电路仿真,经仿真得知所设计的电路电流取样精度达到1 000:1,具有很高的采样精度.该电流检测电路...
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| 关 键 词： | DC/DC转换器 电流检测电路 电流模式 功率开关管 |
Design of a Current-Sensing-Circuit used in Current-mode control DC / DC converter |
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| CHANG Tianhai,PENG Xiaojin.Design of a Current-Sensing-Circuit used in Current-mode control DC / DC converter[J].Journal of Electron Devices,2011,34(2):187-189. |
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| Authors: | CHANG Tianhai PENG Xiaojin |
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| Affiliation: | (South China University of Technology,College of Electronic and Information Engineering,Guangzhou 510640,China) |
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| Abstract: | Current-mode control DC/DC converter chip which used in the power system of correspondence electronic products such as mobile phone,requires a high performance current-sensing-circuit.Based on CSMC 0.5 μm BiCMOS Process Library,a high-precision current-sensing-circuit was designed.The designed circuit was simulated by using Cadence Spectre software,and the simulate result shows that the circuit-sensing-accuracy achieves 1 000∶1,that is a high sampling accuracy.The circuit has good performance and it has been applied to a current-mode control DC/DC converter chip successfully. |
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| Keywords: | DC/DC converter current-sensing-circuit current-mode power switch |
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