| 基于TMS320F28335的恒流型馈能式电子负载的设计 |
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| 引用本文： | 张胜高,张庆范,王思尧,侯典立.基于TMS320F28335的恒流型馈能式电子负载的设计[J].电子设计工程,2012,20(10):103-105,109. |
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| 作者姓名： | 张胜高 张庆范 王思尧 侯典立 |
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| 作者单位： | 山东大学,山东济南,250061 |
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| 摘 要： | 针对电源设备出厂老化测试电能浪费问题,设计了一种基于TMS320F28335DSP的恒流型馈能式电子负载。描述了一种原边带箝位二极管的ZVS移相全桥变换器的工作特点,采用了一种简便易行的移相波形数字控制方法 ;基于DC/DC电压前馈、DC/AC电压电流双环控制方法,研制出一台3.5 kW试验样机。实验结果表明:该系统性能稳定、调节速度快,能很好地满足测试老化及馈网要求。
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| 关 键 词： | 电子负载 移相全桥ZVS 箝位二极管 TMS320F28335 |
Design of a kind of constant-current energy-feedback electric load based on TMS320F28335 |
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| ZHANG Sheng-gao,ZHANG Qing-fan,WANG Si-yao,HOU Dian-li.Design of a kind of constant-current energy-feedback electric load based on TMS320F28335[J].Electronic Design Engineering,2012,20(10):103-105,109. |
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| Authors: | ZHANG Sheng-gao ZHANG Qing-fan WANG Si-yao HOU Dian-li |
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| Affiliation: | (Shandong University,Jinan 250061,China) |
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| Abstract: | In order to solve the energy-wasting problem of power devices in the process of burn-in test,a kind of constant-current energy-feedback electric load based on TMS320F28335DSP is designed.It describes the operating feathers of a phase shifting full bridge ZVS PWM converter with clamping diodes in the primary side of transformer;and a feasible phase shifting PWM wave digital control method is adopted.Based on the method of voltage feed-forward in DC/DC,and current-voltage dual loop control in DC/AC,a 3.5 kW electric load is made.The test results show that this device has stable performance,fast corresponding speed,and can meet the requirements of burn-in test and grid feedback. |
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| Keywords: | electric load PS-FB-ZVS clamping diodes TMS320F28335 |
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