| 基于单片机的开关电源模块并联供电系统 |
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| 引用本文： | 刘立晖. 基于单片机的开关电源模块并联供电系统[J]. 适用技术之窗, 2014, 0(11): 122-127 |
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| 作者姓名： | 刘立晖 |
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| 作者单位： | 江西省公安厅网安总队,江西南昌330006 |
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| 摘 要： | 本系统主要由DC/DC变换模块、PWM脉宽调制信号产生模块、单片机控制和显示模块、信号采样模块和过流保护等模块组成。系统采用闭环控制，通过单片机编程设定模块的输出电流，采用均流技术实现了DC/DC两个模块输出按比例设置电流值的功能，输出电流纹波小，输出电流大于4.5A时自动保护。
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| 关 键 词： | DC/DC变换 单片机 均流技术 TL494 |
Power Supply System of Switching Power Modules in Parallel Based on MCU |
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| Liu Lihui. Power Supply System of Switching Power Modules in Parallel Based on MCU[J]. Science & Technology Plaza, 2014, 0(11): 122-127 |
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| Authors: | Liu Lihui |
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| Affiliation: | Liu Lihui (Jiangxi Provincial Public Security Department Network Security, Jiangxi Nanchang 330006 ) |
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| Abstract: | This system is mainly composed of a DC/DC conversion module, PWM pulse width modulation signal module, single-chip microcomputer control and display module, signal sampling module and over-current protection module, among other modules. The system adopts closed loop control, and sets output current through the micro controller programming. The switching power supply adopts parallel-current technique to set the output current value in proportion, and automatically protect the system when the ripple of output current is small but the value is greater than 4.5 A. |
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| Keywords: | DC/DC Converter： MCU： Parallel-Current Techniaue TLA94 |
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