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    • 111. 发明授权
    • Flushing mechanism
    • 冲洗机构
    • US09512603B2
    • 2016-12-06
    • US13814835
    • 2011-08-10
    • Feiyu LiJian LiLaicong Hong
    • Feiyu LiJian LiLaicong Hong
    • E03D1/34E03D3/10F16K17/04F16K17/06F16K31/143
    • E03D1/34E03D3/10F16K17/044F16K17/065F16K31/143
    • A flushing mechanism includes a housing with an outfall made at the housing bottom surrounding an axis; a guide rod with axial restraint relative to the housing along the axis; a first piston that hermetically slips on the cylindrical inner surface and guide rod at the same time along the axis direction; a spring loading the first piston installed in the upper cavity surrounding the guide rod; the second piston that hermetically slips on the guide rod along the axis direction and locates between the first piston and the housing bottom; a spring loading the second piston installed surrounding the guide rod; control valve; lower part of the first piston is provided with ring protuberance. The large seal ring of seal assembly of the second piston is sealed over the small seal ring of seal assembly of the second piston.
    • 冲洗机构包括具有围绕轴线的壳体底部处形成的排水口的壳体; 相对于壳体沿轴线具有轴向约束的导杆; 第一活塞,沿着轴向同时气密地滑动在圆筒形内表面和导杆上; 弹簧装载安装在围绕引导杆的上腔中的第一活塞; 所述第二活塞沿着所述轴线方向气密地滑动在所述导杆上并且位于所述第一活塞和所述壳体底部之间; 弹簧装载围绕导杆安装的第二活塞; 控制阀; 第一活塞的下部设置有环形突起。 第二活塞的密封组件的大密封环密封在第二活塞的密封组件的小密封环上。
    • 115. 发明授权
    • Current mode voltage regulator with auto-compensation
    • 电流模式电压调节器,具有自动补偿功能
    • US08786268B2
    • 2014-07-22
    • US13536596
    • 2012-06-28
    • Jian LiJindong Henry Zhang
    • Jian LiJindong Henry Zhang
    • H02M3/157
    • H02M3/156
    • A method for automatically compensating a voltage regulator initially disconnects the error amplifier and compensation network from the feedback loop. A DC bias voltage is applied to the feedback loop to cause the regulator's output voltage to be at 90% of its nominal value. An AC perturbation signal is then added to the DC bias voltage to cause the output voltage to have a ripple at a frequency of the AC signal. The gain of the feedback loop and the phase difference between the AC signal and the ripple is then measured. The measured values are then used to automatically adjust operating characteristics of the error amplifier and the compensation network such that, when these components are connected back in the feedback loop during normal operation, the feedback loop has the desired gain and phase margin at the frequency of the AC signal, such as the loop's unity gain frequency.
    • 用于自动补偿电压调节器的方法最初将误差放大器和补偿网络与反馈回路断开连接。 直流偏置电压施加到反馈回路,使稳压器的输出电压达到其标称值的90%。 然后将AC扰动信号添加到DC偏置电压,以使输出电压在AC信号的频率处具有纹波。 然后测量反馈回路的增益和交流信号与纹波之间的相位差。 然后测量值用于自动调整误差放大器和补偿网络的工作特性,使得当这些组件在正常操作期间连接回反馈环路时,反馈回路具有期望的增益和相位裕度,频率为 交流信号,如循环的单位增益频率。