非隔离的普通接地高升级直流-直流转换器,具有连续源电流,适用于低功率应用
Amir Ghorbani Esfahlan1, Kazem Varesi2
1Faculty of Electrical and Computer Engineering, Sahand University of Technology, New Sahand Town, Tabriz, 51335/1996, Iran.
Scientific reports
|February 11, 2025
概括
本研究介绍了一种用于低功耗应用的新型非隔离的高升级开关电容双开关直流直流转换器,可在降低设备应力时获得10的电压增益. 它的简单结构和简单的控制提高了效率和性能.
科学领域:
- 电气工程 电气工程
- 电力电子 电力电子 电力电子
背景情况:
- 低功耗应用需要高效的直流-直流转换器,具有高电压增益.
- 现有的转换器经常面临高压应力和复杂控制的挑战.
- 交换电容器和双交换机拓为提高性能提供了潜力.
研究的目的:
- 提出一种新型的非隔离的高升级开关电容双开关直流直流转换器.
- 为了实现高电压增益与降低电压压力在组件.
- 为了确保低功耗应用程序的简单控制和高效率.
主要方法:
- 在连续传导模式 (CCM) 和不连续传导模式 (DCM) 中详细的稳定状态分析.
- 损耗和效率分析,包括设备设计程序.
- 使用平均状态空间和小信号分析进行建模.
- 通过模拟和实验结果进行验证.
主要成果:
- 在50%的工作周期下实现了10的电压增益.
- 在开关 (分别为20%和40%) 和二极管 (67%) 上表现出低单位电压应力.
- 展示连续输入电流和一个共同的地面点.
- 在CCM中,由于只有两个操作模式,展示了简单的控制.
结论:
- 拟议的转换器为需要高升级电压的低功耗应用提供了具有竞争力的解决方案.
- 它的设计提供了高效率,低组件应力和简单控制的平衡.
- 交叉结构有效地减少了输入电流损失.
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