| 基于LD7670芯片的DC/DC电源模块设计 |
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| 引用本文： | 刘汉忠,葛红宇,张建华.基于LD7670芯片的DC/DC电源模块设计[J].低压电器,2011(10):25-27,57. |
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| 作者姓名： | 刘汉忠 葛红宇 张建华 |
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| 作者单位： | 南京工程学院自动化学院,江苏南京,211167 |
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| 基金项目： | 江苏省自然科学基金资助项目，江苏省教育厅自然科学基金资助项目 |
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| 摘 要： | 介绍了一种基于LD7670芯片的反激式DC/DC电源模块。首先分析了LD7670的特性,介绍了电源电路的工作原理,并进行了实际参数的计算、器件的选取,最后给出了该电源的测试结果。结果表明,利用该芯片设计的电源模块,不但具有体积小、效率高、纹波小、输出电压稳定等优点,而且具有输入电压变化范围宽、动态响应快、电压调整率和负载调整率高,性能可靠,具有一定的应用价值。
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| 关 键 词： | DC/DC电源模块 设计 反激 |
Design of DC-DC Power Supply Module Based on LD7670 Chip |
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| LIU Hanzhong,GE Hongyu,ZHANG Jianhua.Design of DC-DC Power Supply Module Based on LD7670 Chip[J].Low Voltage Apparatus,2011(10):25-27,57. |
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| Authors: | LIU Hanzhong GE Hongyu ZHANG Jianhua |
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| Affiliation: | (School of Automation,Nanjing Institute of Technology,Nanjing 211167,China) |
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| Abstract: | A flyback DC-DC switching power supply based on LD7670 was presented,the principles and characteristics of this chip were introduced firstly.The parameters calculation,components selection and the circuit design were provided then.In the end,the experimental results and the waveforms were analyzed,which showed that this switching power supply had a small size,high efficiency,and had a wide input voltage range,fast frequency response speed,high voltage and load regulation rates,stable output voltage,small ripple and so on.This power module had a certain practical value because of its reliable performance. |
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| Keywords: | DC-DC power supply module design flyback |
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