...
首页> 外文期刊>Power Electronics, IET >Implementation of a zero voltage switching DC/DC converter with three buck-type active clamp circuits
【24h】

Implementation of a zero voltage switching DC/DC converter with three buck-type active clamp circuits

机译:具有三个降压型有源钳位电路的零电压开关DC / DC转换器的实现

获取原文
获取原文并翻译 | 示例
           

摘要

This study presents a new parallel forward converter with low voltage stress of MOSFETs. The buck-type of the active clamp topology is used to reduce the voltage stress of MOSFET. The stacked half-bridge converter with three asymmetric pulsewidth modulation (PWM) circuits is adopted to reduce the power rating of power MOSFETs, transformers, rectifier diodes and the output inductors. Based on the asymmetric PWM scheme, power MOSFETs can be turned on with zero voltage because of the resonant behaviour during the transition interval. Two half-bridge circuits are used at the high voltage side to reduce the voltage stress of each MOSFET at one-half of the input voltage. Thus the MOSFETs with 500 V voltage stress can be used at the 1000 V input voltage case. Three asymmetric PWM circuits are parallel-connected at the low voltage side to achieve the load current sharing and to reduce the current rating of each magnetic component and the rectifier diode. Thus the size of the output chokes and capacitor are reduced. Finally, experiments based on a laboratory prototype with a rated 1 kW are provided to demonstrate the performance of proposed converter.
机译:这项研究提出了一种具有MOSFET低电压应力的新型并行正激转换器。有源钳位拓扑的降压型用于降低MOSFET的电压应力。采用具有三个非对称脉冲宽度调制(PWM)电路的堆叠式半桥转换器来降低功率MOSFET,变压器,整流二极管和输出电感器的额定功率。基于非对称PWM方案,由于过渡间隔期间的谐振行为,功率MOSFET可以零电压导通。在高压侧使用两个半桥电路,以在输入电压的一半时降低每个MOSFET的电压应力。因此,可以在输入电压为1000 V的情况下使用具有500 V电压应力的MOSFET。三个非对称PWM电路在低压侧并联连接,以实现负载电流共享,并降低每个磁性元件和整流二极管的额定电流。因此,减小了输出扼流圈和电容器的尺寸。最后,提供了基于额定功率为1 kW的实验室原型的实验,以证明所提出的转换器的性能。

著录项

  • 来源
    《Power Electronics, IET》 |2012年第7期|p.945-955|共11页
  • 作者

    Lin B.R.; Chiang H.K.; Chen H.C.;

  • 作者单位

    Department of Electrical Engineering, National Yunlin University of Science and Technology;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号