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    • 5. 发明授权
    • High efficiency microwave amplifier
    • 高效微波放大器
    • US07863984B1
    • 2011-01-04
    • US12504738
    • 2009-07-17
    • Robert J. Behnke
    • Robert J. Behnke
    • H03G3/30
    • H03F1/0233H03F3/19H03F3/26
    • Disclosed is an apparatus and method for operating a microwave amplifier with improved efficiency and reduced harmonic emissions. The disclosed amplifier includes a variable rail voltage supply and a variable input drive stage. A controller continually monitors the amplifier output and adjusts the rail voltage and input drive signal to achieve high efficiency and low harmonic emissions. The amplifier may include a dynamic bias controller configured to operate the gain elements outside the linear region. Efficiencies of over 70% may be achieved by the disclosed amplifier.
    • 公开了一种用于操作具有改进的效率和减少的谐波发射的微波放大器的装置和方法。 所公开的放大器包括可变轨电压源和可变输入驱动级。 控制器连续监视放大器输出,调整轨道电压和输入驱动信号,实现高效率和低谐波发射。 放大器可以包括被配置为在线性区域外部操作增益元件的动态偏置控制器。 所公开的放大器可以实现超过70%的效率。
    • 8. 发明申请
    • Crest Factor Enhancement in Electrosurgical Generators
    • 电外科发生器中的波峰因子增强
    • US20090234350A1
    • 2009-09-17
    • US12401981
    • 2009-03-11
    • Robert J. BehnkeRobert H. Wham
    • Robert J. BehnkeRobert H. Wham
    • A61B18/18
    • A61B18/18A61B18/1206A61B18/1402A61B18/1492A61B2018/00726A61B2018/00892H03F3/217
    • The present disclosure relates to an electrosurgical generator which includes a controller configured to generate a first pulse train having at least one first control pulse and at least one first reset pulse. The controller also includes a second pulse train having at least one second control pulse and at least one second reset pulse. The first control pulse(s) and the second control pulse(s) are asynchronous and the reset pulse(s) are synchronous. The electrosurgical generator also includes an RF output stage which includes a first switching element and a second switching element. The control pulses are configured to activate the first switching element and second switching elements, respectively, in an asynchronous fashion to generate a non-continuous RF waveform.
    • 本发明涉及一种电外科发生器,其包括配置成产生具有至少一个第一控制脉冲和至少一个第一复位脉冲的第一脉冲串的控制器。 控制器还包括具有至少一个第二控制脉冲和至少一个第二复位脉冲的第二脉冲串。 第一控制脉冲和第二控制脉冲是异步的,并且复位脉冲是同步的。 电外科发生器还包括RF输出级,其包括第一开关元件和第二开关元件。 控制脉冲被配置为分别以异步方式激活第一开关元件和第二开关元件以产生非连续RF波形。
    • 10. 发明申请
    • HIGH EFFICIENCY MICROWAVE AMPLIFIER
    • 高效微波放大器
    • US20110012679A1
    • 2011-01-20
    • US12504738
    • 2009-07-17
    • Robert J. Behnke
    • Robert J. Behnke
    • H03F3/26H03G3/00
    • H03F1/0233H03F3/19H03F3/26
    • Disclosed is an apparatus and method for operating a microwave amplifier with improved efficiency and reduced harmonic emissions. The disclosed amplifier includes a variable rail voltage supply and a variable input drive stage. A controller continually monitors the amplifier output and adjusts the rail voltage and input drive signal to achieve high efficiency and low harmonic emissions. The amplifier may include a dynamic bias controller configured to operate the gain elements outside the linear region. Efficiencies of over 70% may be achieved by the disclosed amplifier.
    • 公开了一种用于操作具有改进的效率和减少的谐波发射的微波放大器的装置和方法。 所公开的放大器包括可变轨电压源和可变输入驱动级。 控制器连续监视放大器输出,调整轨道电压和输入驱动信号,实现高效率和低谐波发射。 放大器可以包括被配置为在线性区域外部操作增益元件的动态偏置控制器。 所公开的放大器可以实现超过70%的效率。