随着先进工艺和技术的不断进步,要想保证数据在高速传输中的正确性,均衡器需要有更高的补偿和更低的功耗,才能实现高效通信。基于12 nm互补金属氧化物半导体工艺,设计了一种高增益、低功耗的自适应连续时间线性均衡器(continuous time l...随着先进工艺和技术的不断进步,要想保证数据在高速传输中的正确性,均衡器需要有更高的补偿和更低的功耗,才能实现高效通信。基于12 nm互补金属氧化物半导体工艺,设计了一种高增益、低功耗的自适应连续时间线性均衡器(continuous time linear equalizer,CTLE),该均衡器采用2级级联结构来补偿信道衰减,并提高接收信号的质量。此外,自适应模块通过采用符号-符号最小均方误差(sign-sign least mean square,SS-LMS)算法,使抽头系数加快了收敛速度。仿真结果表明,当传输速率为16 Gbit/s时,均衡器可以补偿-15.53 dB的半波特率通道衰减,均衡器系数在16×10^(4)个单元间隔数据内收敛,并且收敛之后接收误码率低于10^(-12)。展开更多
在高速SerDes系统中,随着数据传输速率越来越高,信道对数据高频分量的衰减越来越严重。为解决传统连续时间线性均衡器(Continuous Time Linear Equalizer,CTLE)高频补偿能力欠缺和无法适应不同信道衰减的问题,该文在传统CTLE的基础上,...在高速SerDes系统中,随着数据传输速率越来越高,信道对数据高频分量的衰减越来越严重。为解决传统连续时间线性均衡器(Continuous Time Linear Equalizer,CTLE)高频补偿能力欠缺和无法适应不同信道衰减的问题,该文在传统CTLE的基础上,级联低频均衡器,该均衡器采用双路源极负反馈电阻电容差分结构,对低频信号实现补偿的同时,通过源极负反馈电阻和电容引入了一对零极点,可实现对高频信号的二次补偿;同时,该CTLE的源极负反馈电阻电容可调,可实现零极点位置改变,产生不同的增益补偿,达到适应不同信道衰减的目的。在TSMC 28 nm CMOS工艺下,该CTLE在数据传输速率12.5 Gbps下高频补偿最高达20.5 dB,均衡范围为15.4~20.5 dB,眼图的平均张开度可达到0.92 UI。展开更多
This paper proposes an improved modularizable high-frequency battery equalizer with multi-winding transformer for energy storage systems. The involvement of parasitic components in circuit resonance, along with the ad...This paper proposes an improved modularizable high-frequency battery equalizer with multi-winding transformer for energy storage systems. The involvement of parasitic components in circuit resonance, along with the addition of a resonant network, enables soft-switching for the power switches to reduce the switch voltage stress due to high frequency switching operation. The proposed circuit is designed to operate at switching frequency of 1 MHz. The detailed analysis of circuit operation is provided. At last, the feasibility and performance of the proposed battery equalizer are demonstrated through the system implementation and experimental tests of a prototype circuit. Experimental results have shown zero voltage switching (ZVS) is achieved on the switches.展开更多
为解决电池在工作时出现的能量不一致的问题,以模糊逻辑控制算法为核心,建立以电池荷电状态(state of charge,SOC)差异和电池温度差为根据,可自适应选择均衡模式和开关导通占空比的均衡控制策略。并设计了一种基于环形电感和三绕组变压...为解决电池在工作时出现的能量不一致的问题,以模糊逻辑控制算法为核心,建立以电池荷电状态(state of charge,SOC)差异和电池温度差为根据,可自适应选择均衡模式和开关导通占空比的均衡控制策略。并设计了一种基于环形电感和三绕组变压器的双层均衡拓扑结构,该拓扑拥有多个均衡模式,满足策略需求。使用MATLAB Simulink软件进行模型搭建并仿真,仿真结果表明该均衡方法能够有效缩短均衡时长,缓解电池间的不一致性问题,对比同类型多均衡模式的均衡方法,静置、充电、放电所需均衡时间分别缩短69.78%、39.81%和44.15%,同时有效降低了均衡时的电池温度。展开更多
文摘随着先进工艺和技术的不断进步,要想保证数据在高速传输中的正确性,均衡器需要有更高的补偿和更低的功耗,才能实现高效通信。基于12 nm互补金属氧化物半导体工艺,设计了一种高增益、低功耗的自适应连续时间线性均衡器(continuous time linear equalizer,CTLE),该均衡器采用2级级联结构来补偿信道衰减,并提高接收信号的质量。此外,自适应模块通过采用符号-符号最小均方误差(sign-sign least mean square,SS-LMS)算法,使抽头系数加快了收敛速度。仿真结果表明,当传输速率为16 Gbit/s时,均衡器可以补偿-15.53 dB的半波特率通道衰减,均衡器系数在16×10^(4)个单元间隔数据内收敛,并且收敛之后接收误码率低于10^(-12)。
文摘This paper proposes an improved modularizable high-frequency battery equalizer with multi-winding transformer for energy storage systems. The involvement of parasitic components in circuit resonance, along with the addition of a resonant network, enables soft-switching for the power switches to reduce the switch voltage stress due to high frequency switching operation. The proposed circuit is designed to operate at switching frequency of 1 MHz. The detailed analysis of circuit operation is provided. At last, the feasibility and performance of the proposed battery equalizer are demonstrated through the system implementation and experimental tests of a prototype circuit. Experimental results have shown zero voltage switching (ZVS) is achieved on the switches.
文摘为解决电池在工作时出现的能量不一致的问题,以模糊逻辑控制算法为核心,建立以电池荷电状态(state of charge,SOC)差异和电池温度差为根据,可自适应选择均衡模式和开关导通占空比的均衡控制策略。并设计了一种基于环形电感和三绕组变压器的双层均衡拓扑结构,该拓扑拥有多个均衡模式,满足策略需求。使用MATLAB Simulink软件进行模型搭建并仿真,仿真结果表明该均衡方法能够有效缩短均衡时长,缓解电池间的不一致性问题,对比同类型多均衡模式的均衡方法,静置、充电、放电所需均衡时间分别缩短69.78%、39.81%和44.15%,同时有效降低了均衡时的电池温度。
