| 基于AT89S52单片机的开关电源设计 |
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| 引用本文： | 赵亚范,刘佳琪,王坤.基于AT89S52单片机的开关电源设计[J].电子测量技术,2012,35(10):77-79,87. |
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| 作者姓名： | 赵亚范 刘佳琪 王坤 |
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| 作者单位： | 1. 海军航空工程学院基础实验部 烟台 264001
2. 海军航空工程学院基础部 烟台 264001 |
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| 摘 要： | 主要论述了基于AT89S52单片机的一种开关电源的设计原理及实现方法,采用开关电压调压芯片LM2596作为主控单元,主控制器通过控制程控电阻模块,实现并联供电系统输出电流的自动调节分配.同时芯片连接电流传感电路与过流保护电路,对输出电流实时检测,并反馈给主控器,实现过流保护.供电系统输出稳定的直流电压,并且供电效率达到60％以上,设计的产品可应用于通信设备和电子产品中,实用性较高.
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| 关 键 词： | AT89S52 开关电源 LM2596 DC/DC |
Design of switching power supply based on AT89S52 monolithic integrated circuit |
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| Zhao Yafan
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Liu Jiaqi
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Wang Kun.Design of switching power supply based on AT89S52 monolithic integrated circuit[J].Electronic Measurement Technology,2012,35(10):77-79,87. |
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| Authors: | Zhao Yafan Liu Jiaqi Wang Kun |
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| Affiliation: | Zhao Yafan Liu Jiaqi Wang Kun (1. Department of Basic Experiment, Naval Aeronautical and Astronautical University, Yantai 264001 2. Department of Basic,Naval Aeronautical and Astronautical University,Yantai 264001) |
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| Abstract: | The article mainly discusses one kind of switching power supply principle of design and the realization method based on AT89S52 monolithic integrated circuit,the switch voltage accent to press chip LM2596 was used as the master control unit. The main controller through control of programmable resistance module to realize the automatic control assignment of parallel power supply system output current. At the same time chip is connected with the current sensing circuit and over-current protection circuit, the output current real-time detection, and feedback to the controller,achieve over-current protection. Stable DC voltage was output by power supply system, and the power supply efficiency achieved above 60% ,the design product which has a strong practical could be applied to the communication equipment and the electronic product. |
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| Keywords: | AT89S52 switch power supply LM2596 DC/DC |
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