| 一种新型外驱动同步整流电路 |
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| 引用本文： | 丁志刚,汪世平,周华良.一种新型外驱动同步整流电路[J].电力系统自动化,2012,36(3):97-100. |
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| 作者姓名： | 丁志刚 汪世平 周华良 |
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| 作者单位： | 国网电力科学研究院/南京南瑞集团公司，江苏省南京市 210003 |
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| 摘 要： | 针对采用自驱动同步整流正激变换器存在驱动死区和共态导通的问题,提出一种新型外驱动同步整流电路。该电路结合了外驱动和自驱动的特点,能够很好地解决驱动死区和共态导通问题,并且采用该同步整流驱动电路的正激变换器适用于宽输入电压场合。对驱动电路的原理进行了分析,给出了绝对安全时间的计算方法,并通过一个80W的原理样机进行了实验验证。
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| 关 键 词： | 同步整流 自驱动 外驱动 正激变换器 |
| 收稿时间： | 2011/5/30 0:00:00 |
| 修稿时间： | 1/9/2012 9:50:07 AM |
A Novel Out-driving Synchronous Rectifier Circuit |
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| DING Zhigang,WANG Shiping,ZHOU Hualiang.A Novel Out-driving Synchronous Rectifier Circuit[J].Automation of Electric Power Systems,2012,36(3):97-100. |
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| Authors: | DING Zhigang WANG Shiping ZHOU Hualiang |
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| Affiliation: | (State Grid Electric Power Research Institute,Nanjing 210003,China) |
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| Abstract: | A novel out-driving synchronous rectifier(SR) circuit combined with out-driving and self-driving characteristics is proposed.It can deal with the issues of dead time and common conduction time in the self-driving SR circuit for forward converter.Using the circuit,the forward converter is able to work within wide range of input voltages.The principle of the circuit is described,and absolute safe-time is calculated.Finally,a 80 W prototype of forward converter is built and tested. |
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| Keywords: | synchronous rectifier(SR) self-driving out-driving forward converter |
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