期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
宽带直接接触式RF MEMS开关 被引量:4
1
作者 郁元卫 贾世星 +1 位作者 朱健 陈辰 《传感技术学报》 CAS CSCD 北大核心 2008年第4期688-691,共4页
本文提出一种静电驱动直接接触式宽带MEMS开关,包含CPW传输线、双U型金属悬臂梁、触点和锚区,兼顾了开关接触可靠、克服微结构粘连和低驱动电压三大结构可靠性设计因素。本开关为三端口开关,使用低温表面微机械工艺,制作在400μm厚的高... 本文提出一种静电驱动直接接触式宽带MEMS开关,包含CPW传输线、双U型金属悬臂梁、触点和锚区,兼顾了开关接触可靠、克服微结构粘连和低驱动电压三大结构可靠性设计因素。本开关为三端口开关,使用低温表面微机械工艺,制作在400μm厚的高阻硅衬底上,芯片尺寸0.8mm×0.9mm。样品在片测试结果表明,在6GHz频点,开关本征损耗0.1dB,隔离度24.8dB,等效开关接触电阻0.6Ω,关态电容6.4fF,开关时间47μs,开关驱动电压为20-60V。 展开更多
关键词 射频微机电开关 直接接触式 宽驱动电压
下载PDF
Modular High-Power Electronics for a High-Speed MLC Flywheel Energy Storage System 被引量:5
2
作者 Veselin Vracar 《Journal of Energy and Power Engineering》 2012年第11期1856-1861,共6页
The operation of a motor drive for high-power, high-speed applications, especially for the permanent-magnet synchronous AC motors with regeneration capability is presented. Power system utilizes a SVHPWM (space-vecto... The operation of a motor drive for high-power, high-speed applications, especially for the permanent-magnet synchronous AC motors with regeneration capability is presented. Power system utilizes a SVHPWM (space-vector-based hybrid pulse width modulation) for a reduced harmonic distortion and switching loss. Associated electromagnetic interference mitigation and cooling requirements are significantly reduced. Voltage source inverter drives a three-phase MLC200 flywheel. The modularity of the proposed topology also simplifies overall system design and manufacturability. The system topology and control strategy are discussed. Simulation results are presented to illustrate the harmonic distortion and switching loss reduction and reduced line current ripple. 展开更多
关键词 Motor drive FLYWHEEL space vector hybrid PWM simulation model.
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部