• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE transactions on circuits and systems . I , Regular papers >A High-Efficiency Low-Profile Zero-Voltage Transition Synchronous Non-Inverting Buck-Boost Converter With Auxiliary-Component Sharing
【24h】

A High-Efficiency Low-Profile Zero-Voltage Transition Synchronous Non-Inverting Buck-Boost Converter With Auxiliary-Component Sharing

机译：具有辅助分量共享的高效低剖面零电压过渡同步非反相降压-升压转换器

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents an efficiency-enhanced low-profile zero-voltage-transition (ZVT) synchronous non-inverting buck-boost converter for 48-V tens-of-Watt output applications. By only using three auxiliary components shared between two switching nodes, zero-voltage switching (ZVS) of all four power switches and zero-current switching of the auxiliary switch are achieved in the proposed converter to minimize the switching power loss. Compared with the existing ZVT topologies, the proposed converter reduces the required number of auxiliary components, thereby decreasing the converter volume and power loss. In addition, the proposed converter can be configured into the buck mode with full ZVS capability to support a wide input range from 36 V to 90 V. Experimental results show that the proposed converter can operate at 1 MHz and deliver a maximum output power of 75 W. The measured peak power efficiencies achieve 92.5% and 96.3% in the buck-boost mode and buck mode, respectively. Compared with the state-of-the-art ZVS-based buck-boost counterpart, the proposed converter reduces the volume of the auxiliary circuit by ~2 times even with 28% increase in the maximum load current and two times reduction in the switching frequency, and provides higher peak power efficiencies in both buck-boost and buck modes.
机译：本文提出了一种用于48V数十瓦输出应用的效率增强型低调零电压过渡（ZVT）同步非反相降压-升压转换器。通过仅使用在两个开关节点之间共享的三个辅助组件，在所提出的转换器中实现了所有四个电源开关的零电压开关（ZVS）和辅助开关的零电流开关，从而将开关功率损耗降至最低。与现有的ZVT拓扑相比，建议的转换器减少了所需的辅助组件数量，从而减少了转换器的体积和功耗。此外，拟议的转换器可以配置为具有完全ZVS功能的降压模式，以支持从36V到90V的宽输入范围。实验结果表明，拟议的转换器可以在1MHz的频率下工作，并提供最大75V的输出功率。 W.在降压-升压模式和降压模式下，测得的峰值功率效率分别达到92.5％和96.3％。与最新的基于ZVS的降压-升压型转换器相比，即使最大负载电流增加了28％，而最大负载电流却减少了两倍，所提出的转换器却将辅助电路的体积减少了约2倍。开关频率，并在降压-升压和降压模式下提供更高的峰值功率效率。

著录项

相似文献

  • 外文文献
  • 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