| DC/DC开关电源模块并联供电系统均流控制研究 |
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| 引用本文： | 易映萍,杨坚,姚为正.DC/DC开关电源模块并联供电系统均流控制研究[J].电子技术应用,2012,38(9):64-66. |
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| 作者姓名： | 易映萍 杨坚 姚为正 |
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| 作者单位： | 1. 上海理工大学光电信息与计算机工程学院,上海,200093
2. 许继集团有限公司,河南许昌,461000 |
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| 基金项目： | 国家高技术研究发展计划863项目 |
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| 摘 要： | 介绍了由两个DC/DC开关电源模块并联构成的供电系统电路结构和工作原理。该系统采用ARM芯片STM32为主控芯片产生驱动功率开关器件MOSFET的PWM脉冲1],对供电系统的输出电压和各个模块的输出电流均实现了全数字闭环PI控制。系统输出电压稳定,能实现两个模块电流的比例分配,同时具有输出负载短路及延时恢复功能。仿真和实验结果验证了控制技术的正确性和可行性。
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| 关 键 词： | DC/DC模块 并联 均流 STM32 开关电源 |
The research of the current sharing control technology of DC/DC parallel operating module in power supply system |
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| Yi Yingping
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Yang Jian
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Yao Weizheng.The research of the current sharing control technology of DC/DC parallel operating module in power supply system[J].Application of Electronic Technique,2012,38(9):64-66. |
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| Authors: | Yi Yingping Yang Jian Yao Weizheng |
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| Affiliation: | 1.School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technolog, Shanghai 200093,China; 2.Xuji Group,Xuchang 461000,China) |
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| Abstract: | The paper introduces the circuit structure and work principle of DC/DC parallel switch power supply system.This system uses the ARM chip STM32 as the master chip to generate the PWM pulse which drives the MOSFET.Meanwhile,it uses digital close-loop PI control method to control the output voltage of power supply system and output current of each module,the output voltage of power supply system is stable.What's more,the system can realize the current proportional distribution of two modules.it has simple circuit structure with the ability of delay recovering and short circuit for load.the Simulation and experimental results show that the control technology is feasible and right. |
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| Keywords: | DC/DC module parallel current average STM32 switch power supply |
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