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    • 25. 发明授权
    • Power efficient multistage amplifier and design method
    • 高效多级放大器和设计方法
    • US07583150B2
    • 2009-09-01
    • US11688729
    • 2007-03-20
    • Kenneth V BuerMichael LyonsScarlet Daoud
    • Kenneth V BuerMichael LyonsScarlet Daoud
    • H03F3/68
    • H03F3/189H03F1/02
    • A multistage amplifier and design method are disclosed. The multistage amplifier has a plurality of amplifier stages, each stage having an amplifier designed and biased to operate at or near the amplifier's power added efficiency (PAE) peak. The PAE peak of each of the amplifier is at or near the amplifiers linear-compression transition region, providing a multistage power amplifier that is power efficient and has desirable amplitude to amplitude and amplitude to phase power transfer characteristics. The amplifier is designed by matching the output impedance of a final stage with a load. Amplifier stages are iteratively designed from the last stage to the first. At each stage, an amplifier and drive circuit are designed. The drive circuit and amplifier are designed to provide each stage with output impedance matched to the input impedance of the following stage and to operate at or near the PAE peak of the amplifier.
    • 公开了一种多级放大器和设计方法。 多级放大器具有多个放大器级,每级具有设计和偏置以在放大器的功率增加效率(PAE)峰值附近操作的放大器。 每个放大器的PAE峰值处于或靠近放大器线性压缩过渡区域,提供功率有效的多级功率放大器,并具有期望的振幅和幅度与相位功率传输特性。 放大器的设计是通过匹配最后一级的输出阻抗与负载。 从最后阶段到第一阶段迭代设计放大器级。 在每个阶段,设计放大器和驱动电路。 驱动电路和放大器被设计成为每个级提供与下一级的输入阻抗匹配的输出阻抗,并在放大器的PAE峰值处或附近工作。
    • 26. 发明申请
    • POWER EFFICIENT MULTISTAGE AMPLIFIER AND DESIGN METHOD
    • 功率有效的多功能放大器和设计方法
    • US20080231374A1
    • 2008-09-25
    • US11688729
    • 2007-03-20
    • Kenneth V. BuerMichael LyonsScarlet Daoud
    • Kenneth V. BuerMichael LyonsScarlet Daoud
    • H03F3/68
    • H03F3/189H03F1/02
    • A multistage amplifier and design method are disclosed. The multistage amplifier has a plurality of amplifier stages, each stage having an amplifier designed and biased to operate at or near the amplifier's power added efficiency (PAE) peak. The PAE peak of each of the amplifier is at or near the amplifiers linear-compression transition region, providing a multistage power amplifier that is power efficient and has desirable amplitude to amplitude and amplitude to phase power transfer characteristics. The amplifier is designed by matching the output impedance of a final stage with a load. Amplifier stages are iteratively designed from the last stage to the first. At each stage, an amplifier and drive circuit are designed. The drive circuit and amplifier are designed to provide each stage with output impedance matched to the input impedance of the following stage and to operate at or near the PAE peak of the amplifier.
    • 公开了一种多级放大器和设计方法。 多级放大器具有多个放大器级,每级具有设计和偏置以在放大器的功率增加效率(PAE)峰值附近操作的放大器。 每个放大器的PAE峰值处于或靠近放大器线性压缩过渡区域,提供功率有效的多级功率放大器,并具有期望的振幅和幅度与相位功率传输特性。 放大器的设计是通过匹配最后一级的输出阻抗与负载。 从最后阶段到第一阶段迭代设计放大器级。 在每个阶段,设计放大器和驱动电路。 驱动电路和放大器被设计成为每个级提供与下一级的输入阻抗匹配的输出阻抗,并在放大器的PAE峰值处或附近工作。
    • 30. 发明授权
    • Methods and systems for evaluating checker quality of a verification environment
    • 用于评估验证环境的检验质量的方法和系统
    • US08359559B2
    • 2013-01-22
    • US12977376
    • 2010-12-23
    • Kai YangMichael LyonsKuo-Ching LinWei-Ting TuChih-Wen ChangTein-Chun Wei
    • Kai YangMichael LyonsKuo-Ching LinWei-Ting TuChih-Wen ChangTein-Chun Wei
    • G06F17/50G06F9/455
    • G06F17/5022G06F17/504G06F2217/10
    • Methods and systems for evaluating checker quality of a verification environment are provided. In some embodiments, an overall sensitivity for the verification environment and an individual sensitivity for a respective checker are calculated. The overall sensitivity is a probability that a plurality of problematic design behaviors, which are propagated to a checker system including at least one checker, can be detected by the verification environment. The individual sensitivity is a probability that a plurality of problematic design behaviors, which are propagated to at least one specific probe among a plurality of probes of a design, can be detected by the checker corresponding to the specific probe. The overall checker sensitivity numbers can show the robustness of the check system. The individual checker sensitivity can guide the user which individual checker or checkers to improve.
    • 提供了用于评估验证环境的检查器质量的方法和系统。 在一些实施例中,计算验证环境的总体灵敏度和相应检查器的个体灵敏度。 总体灵敏度是通过验证环境可以检测到传播到包括至少一个检验器的检查系统的多个有问题的设计行为的概率。 个体敏感度是通过与特定探针对应的检查器可以检测到在设计的多个探针中传播到至少一个特定探针的多个有问题的设计行为的概率。 整体检查灵敏度数字可以显示检查系统的稳健性。 单独的检查灵敏度可以指导用户哪个单独的检查器或检查器改进。