| 一种新型高功率因数软开关电源 |
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| 引用本文： | 岳云涛,李英姿,韩永萍.一种新型高功率因数软开关电源[J].电力自动化设备,2008,28(5). |
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| 作者姓名： | 岳云涛 李英姿 韩永萍 |
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| 作者单位： | 1. 北京建筑工程学院,电气与信息工程系,北京,100044
2. 北京联合大学,生物化工学院,北京,100023 |
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| 摘 要： | 提出了一种新型高功率因数软开关小功率电源的设计方法,讨论了基于ML4803芯片控制的功率因数校正电路及无源无损的软开关DC/DC变换器。DC/DC变换部分采用了新颖的双管正激软开关技术,在不使用辅助开关管的情况下实现了开关管的零电压开通和关断,并成功研制了48V/10A的实用小功率电源模块,使其具有动态响应快、高功率因数、高效率及体积小等优点。
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| 关 键 词： | 功率因数校正 软开关 双管正激 |
High power factor soft-switching power supply |
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| YUE Yuntao,LI Yingzi,HAN Yongping.High power factor soft-switching power supply[J].Electric Power Automation Equipment,2008,28(5). |
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| Authors: | YUE Yuntao LI Yingzi HAN Yongping |
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| Abstract: | A scheme of low-power high-power-factor soft-switching power supply is presented. Its power factor corrector and passive lossless soft-switching DC / DC converter controlled by ML4803 IC are discussed. DC / DC converter applies two-transistor forward soft-switching technique,which realizes zero-voltage turn-on and turn-off without additional switches. A 48 V / 10 A power supply module is developed,which has rapid dynamic response,high power factor,high efficiency and small size. |
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| Keywords: | power factor correction soft-switching two-transistor forward |
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