| 新型多路输出数字调压电路的设计 |
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| 引用本文： | 金杰,于志辉,李可佳.新型多路输出数字调压电路的设计[J].电路与系统学报,2012,17(2):84-87,83. |
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| 作者姓名： | 金杰 于志辉 李可佳 |
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| 作者单位： | 天津大学电子信息工程学院,天津,300072 |
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| 基金项目： | 国家自然科学基金项目:基于电光效应双向调谐的ROADM研究(60777014);高等学校博士学科点专项科研基金:用于光网络节点的多波长电光调谐滤波技术(20090032110027) |
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| 摘 要： | 研究了一种新型多路输出数字调压电路。以FPGA为核心,利用其丰富的I/O口,实现多路电压同时输出。待转换的数据经USB2.0接口输入FPGA内部FIFO中,减少电压配置时间。采用高压运放芯片,工作于非对称供电模式。实验结果表明,电压调节范围-39V~+49.95V,步进调节灵敏度为0.0244V,最大输出电流50mA,纹波电压小于2mV。
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| 关 键 词： | 数字调压 多路输出 FPGA USB2.0 高压运放 非对称供电 |
A novel multi-output digital voltage regulator circuit |
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| JIN Jie
,
YU Zhi-hui
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LI Ke-jia.A novel multi-output digital voltage regulator circuit[J].Journal of Circuits and Systems,2012,17(2):84-87,83. |
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| Authors: | JIN Jie YU Zhi-hui LI Ke-jia |
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| Affiliation: | (School of Electronic Information Engineering,Tianjin University,Tianjin 300072,China) |
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| Abstract: | A novel multi-output digital voltage regulator circuit is proposed.FPGA is employed as a core controller,considering the following advantages,its extensive I/O ports enable multi-channel voltage output simultaneously,and dates to be converted is entered into the FIFO of FPGA by USB2.0 interface,which reduces voltage configuration time.In addition,high-voltage op-amp is applied in the circuit,which works in asymmetric power model.Test results indicate that voltage adjustment is-39~+49.95V,stepping adjustment sensitivity reaches 0.0244V,maximum output current is 50mA,and ripple voltage is less than 2mV. |
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| Keywords: | digital voltage regulator multi-output FPGA USB2 0 high-voltage op-amp asymmetrical powering |
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