Hybrid load differential amplifier operable in a high temperature environment of a turbine engine
    2.
    发明授权
    Hybrid load differential amplifier operable in a high temperature environment of a turbine engine 有权
    混合负载差动放大器可在涡轮发动机的高温环境中操作

    公开(公告)号:US08766720B2

    公开(公告)日:2014-07-01

    申请号:US13537572

    申请日:2012-06-29

    Abstract: A circuitry (120) adapted to operate in a high-temperature environment of a turbine engine is provided. The circuitry may include a differential amplifier (122) having an input terminal (124) coupled to a sensing element to receive a voltage indicative of a sensed parameter. A hybrid load circuitry (125) may be AC-coupled to the differential amplifier. The hybrid load circuitry may include a resistor-capacitor circuit (134) arranged to provide a path to an AC signal component with respect to the drain terminal of the switch (e.g., 126) of a differential pair of semiconductor switches 126, 128, which receives the voltage indicative of the sensed parameter.

    Abstract translation: 提供适于在涡轮发动机的高温环境中操作的电路(120)。 电路可以包括具有耦合到感测元件的输入端子(124)的差分放大器(122),以接收指示感测参数的电压。 混合负载电路(125)可以被AC耦合到差分放大器。 混合负载电路可以包括电阻器 - 电容器电路(134),其被布置成提供相对于差分对半导体开关126,128的开关(例如126)的漏极端子的AC信号分量的路径, 接收指示感测参数的电压。

    CHOPPER CIRCUITRY OPERABLE IN A HIGH TEMPERATURE ENVIRONMENT OF A TURBINE ENGINE
    3.
    发明申请
    CHOPPER CIRCUITRY OPERABLE IN A HIGH TEMPERATURE ENVIRONMENT OF A TURBINE ENGINE 有权
    在涡轮发动机的高温环境中操作的切割电路

    公开(公告)号:US20140009222A1

    公开(公告)日:2014-01-09

    申请号:US13544159

    申请日:2012-07-09

    CPC classification number: G01K7/021 G01K13/08 H04Q9/00 H04Q2209/40

    Abstract: Chopper circuitry may be adapted to operate in a high-temperature environment of a turbine. A first semiconductor switch (122) may have a first terminal coupled to receive a first output signal from a first leg (148) of a differential amplifier (150). A second switch (128) may have a first terminal coupled thru a first resistive element (R1) to a second terminal of the first semiconductor switch. The first terminal of the second semiconductor switch may be coupled to receive thru a second resistive element (R2) a second output signal from a second leg (152) of the amplifier. Switches (122,128) may be responsive to a switching control signal to respective gate terminals of the switches to supply an output signal, which alternates in correspondence with a frequency of the switching control signal from a first amplitude level to a second amplitude level, which effectively provides a doubling amplification factor.

    Abstract translation: 斩波器电路可以适于在涡轮机的高温环境中操作。 第一半导体开关(122)可以具有耦合以从差分放大器(150)的第一支路(148)接收第一输出信号的第一端子。 第二开关(128)可以具有通过第一电阻元件(R1)耦合到第一半导体开关的第二端子的第一端子。 第二半导体开关的第一端子可以被耦合以通过第二电阻元件(R2)接收来自放大器的第二支路(152)的第二输出信号。 开关(122,128)可以响应于开关的相应栅极端子的开关控制信号,以提供输出信号,该输出信号与切换控制信号的频率相对应,从第一幅度电平到第二幅度电平,这有效地 提供了倍增放大系数。

    VOLTAGE REGULATOR CIRCUITRY OPERABLE IN A HIGH TEMPERATURE ENVIRONMENT OF A TURBINE ENGINE
    8.
    发明申请
    VOLTAGE REGULATOR CIRCUITRY OPERABLE IN A HIGH TEMPERATURE ENVIRONMENT OF A TURBINE ENGINE 有权
    涡轮发动机高温环境下运行的电压调节器电路

    公开(公告)号:US20140002050A1

    公开(公告)日:2014-01-02

    申请号:US13537208

    申请日:2012-06-29

    Abstract: A voltage regulator circuitry (50) adapted to operate in a high-temperature environment of a turbine engine is provided. The voltage regulator may include a constant current source (52) including a first semiconductor switch (54) and a first resistor (56) connected between a gate terminal (G) and a source terminal (S) of the first semiconductor switch. A second resistor (58) is connected to the gate terminal of the first semiconductor switch (54) and to an electrical ground (64). The constant current source is coupled to generate a voltage reference across the second resistor 58. A source follower output stage 66 may include a second semiconductor switch (68) and a third resistor (58) connected between the electrical ground and a source terminal of the second semiconductor switch. The generated voltage reference is applied to a gating terminal of the second semiconductor switch (58).

    Abstract translation: 提供一种适于在涡轮发动机的高温环境中操作的调压器电路(50)。 电压调节器可以包括恒定电流源(52),其包括连接在第一半导体开关的栅极端子(G)和源极端子(S)之间的第一半导体开关(54)和第一电阻器(56)。 第二电阻器(58)连接到第一半导体开关(54)的栅极端子和电接地(64)。 耦合恒流源以在第二电阻器58上产生电压基准。源极跟随器输出级66可以包括第二半导体开关(68)和第三电阻器(58),第三电阻器连接在电接地和源极端子之间 第二半导体开关。 所产生的参考电压被施加到第二半导体开关(58)的选通端子。

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