| 采用准谐振和同步整流技术的隔离功率开关电源研究 |
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| 引用本文： | 桑泉,李坤.采用准谐振和同步整流技术的隔离功率开关电源研究[J].通信电源技术,2009,26(3):19-22. |
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| 作者姓名： | 桑泉 李坤 |
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| 作者单位： | 中国兵器工业第214研究所,安徽,蚌埠,233042 |
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| 摘 要： | 介绍一种由常规PWM控制器改进设计为FM控制器，从而实现固定关断时间的变频准谐振模式的开关电源，输出级采用同步整流技术，大大降低了开关损耗和开关瞬时漏感引起的高频噪声，从而较好地解决了功率隔离开关电源的高频噪声电平高、功率损耗大的问题。
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| 关 键 词： | FM控制器 隔离 准谐振 同步整流 |
Disquisition of Switch Power-Supply with Quasi-Resonance Techniques and Synchronous Rectifying Techniques |
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| SANG Quan,LI Kun.Disquisition of Switch Power-Supply with Quasi-Resonance Techniques and Synchronous Rectifying Techniques[J].Telecom Power Technologies,2009,26(3):19-22. |
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| Authors: | SANG Quan LI Kun |
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| Institution: | (The Research Institute 214 of China North Group Corporation, Bengbu 233042, China) |
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| Abstract: | One design of normal PWM controller improve to FM controller is discussed, accordingly, frequency changing resonance techniques with changeless off-time is designed, circuit output end with synchronous rectifying, so the high frequency noise and on-off-time power waste are reduced, then, the key problem of isolated switch power-supply is resolved. |
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| Keywords: | FM controller isolation quasi-resonance synchronous rectifying |
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