| 具有输出短路保护功能的升压变换器研究 |
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| 引用本文： | 童军.具有输出短路保护功能的升压变换器研究[J].电力电子技术,2009,43(5). |
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| 作者姓名： | 童军 |
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| 作者单位： | 西安科技大学,陕西,西安,710054 |
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| 摘 要： | 由于基本升压DC/DC变换器.不能通过关断其主开关来切断输入电源,因此不具备输出保护功能.通过在其输入端增加一个隔离开关和续流二极管,得到了一种改进的升压DC/DC变换器,当变换器输出出现短路故障时,通过启动输出短路保护电路使隔离开关关断,同时启动主开关导通,可彻底切断输入电源,使升压DC/DC变换器具备了输出短路保护功能.实验结果验证了该电路的正确性和可行性.
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| 关 键 词： | 变换器 电源/输出短路保护 |
Research on Boost Converters with Output Short-circuit Protection |
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| TONG Jun.Research on Boost Converters with Output Short-circuit Protection[J].Power Electronics,2009,43(5). |
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| Authors: | TONG Jun |
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| Affiliation: | Xi'an University of Science & Technology;Xi'an 710054;China |
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| Abstract: | According to the inherent structure of a basic step-up DC/DC converter,the input power supply can't be cut off by turning off the main switch,so it doesn't have the output short-circuit protection function.An improved step-up DC/DC converter is presented by adding an isolated switch and a freewheeling diode to the input.When the output of the converter is short-circuited,the energy of the input power supply can be cut off by starting protection circuit and openning main switch.The results prove the correctn... |
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| Keywords: | converter power supply /output short-circuit protection |
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