Search Results - "胡伟波"
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高频驱动电路与高效GaN HEMT电源模块的实现
Published in 电子技术应用 (2021)“…TN86; 为了满足当前电源模块高效大功率的要求,针对氮化镓器件设计一款高频驱动电路,并搭建形成高频高效的电源模块.电路通过调节死区最小化处理模块与非重叠模块,抑制功率器件的大电流直通现象,有助于提升电源模块的效率;利用氮化镓器件的高频特性,使电源系统的工作频率大幅提升.电源系统测试结果表明,l…”
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一种应用分段式电容阵列的20 MS/s 10-bit SAR ADC
Published in 电子技术应用 (2023)“…TN402; 设计了一个10位分辨率,20 MS/s采样率的逐次逼近型模拟数字转换器(SAR ADC).该电路通过采用分段式电容阵列设计,缩短了量化过程中高位电容翻转后所需要的稳定时间,从而提高了量化速度.此外,还提出了一种新颖、高效的比较器校准方法,以较低的成本实现了比较器失调电压的抑制.该ADC芯片基于180…”
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一种高效率的ACBC-C三级运放的设计
Published in 电子技术应用 (2020)“…TN432; 采用TSMC 180 nm的CMOS工艺,设计实现了一个具有高效率、大的电容负载驱动能力的三级运算放大器.提出了一种基于共源共栅密勒补偿(Cascode Miller Compensation,CMC)和交流升压补偿(AC Boosting…”
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基于GaN HEMT宽带低噪声放大器设计
Published in 电子技术应用 (2020)“…TN722.3; 为了满足不同通信标准的要求,利用氮化镓高电子迁移率晶体管器件设计了一个高线性度宽频带低噪声放大器.低噪声放大器采用两级电阻负反馈结构,利用集总参数元件和微带线对低噪声放大器的输入和输出匹配网络进行优化,实现低噪声、高线性度、宽频带和小回波损耗.在1 ~3…”
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多孔金属纤维烧结毡单向拉伸行为
Published in 中国有色金属学报:英文版 (2015)“…基于多齿刀具切削及高温固相烧结铜纤维技术制备具有三维网状结构的多孔金属纤维烧结毡(PMFSS)。通过单向拉伸试验研究纤维长度及自然时效处理对PMFSS拉伸性能的影响。结果表明:增大纤维长度有利于提高PMFSS的拉伸强度;选用15…”
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Steady-state Raman gain in visible and near-infrared waveband of SrWO4 and BaWO4 crystals
Published in Chinese optics letters (10-12-2014)“…The steady-state stimulated Raman scattering (SRS) gain with different excitation wavelengths ranging from 400 to 1100 nm of tungstate crystals, SrWO4 and…”
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A novel chromatic dispersion monitoring method for 1 024 QAM fiber-optic system based on asynchronous amplitude sampling
Published in Optoelectronics letters (01-05-2017)“…A new chromatic dispersion(CD) monitoring method is proposed, and the CD monitoring is achieved on the whole range of 0-600 ps/nm. A dual-polarization(DP)-1…”
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Clinical Study on Electroacupuncture for Post-withdrawal Anxiety-depression Mood in Heroin Addicts
Published in Journal of acupuncture and tuina science (01-08-2009)“…Objective To investigate the intervention effect of electroacupuncture on post-withdrawal anxiety and depression of those with heroin dependence. Method One…”
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