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    • 4. 发明授权
    • Single output transistor output stage for interface applications
    • 用于接口应用的单输出晶体管输出级
    • US5988819A
    • 1999-11-23
    • US24859
    • 1998-02-17
    • Sui Ping ShiehPirooz ParvarandehDavid Bingham
    • Sui Ping ShiehPirooz ParvarandehDavid Bingham
    • H03K19/003G05F1/10
    • H03K19/00315
    • An interface output stage includes a pull-up circuit and a pull-down circuit connected to a positive power supply signal line having a first voltage, an output signal line having an output voltage and a negative power supply signal line having a second voltage. The pull-up circuit includes a single output transistor and a body snatcher circuit, both interconnected between the positive power supply signal line and the output signal line. The body snatcher circuit ties the bodies of the output transistor and the transistors forming the body snatcher circuit to either the first voltage or the output voltage. The pull-down circuit is designed generally similar to the pull-up circuit to tie bodies of its transistors to either the output voltage or the second voltage.
    • 接口输出级包括上拉电路和连接到具有第一电压的正电源信号线,具有输出电压的输出信号线和具有第二电压的负电源信号线的下拉电路。 上拉电路包括在正电源信号线和输出信号线之间互连的单个输出晶体管和主体捕获电路。 身体拾取器电路将输出晶体管的主体和形成主体捕获电路的晶体管连接到第一电压或输出电压。 下拉电路的设计大体类似于将其晶体管的主体连接到输出电压或第二电压的上拉电路。
    • 6. 发明授权
    • Digital input circuit and method for high voltage sensors
    • 高压传感器数字输入电路及方法
    • US09294063B1
    • 2016-03-22
    • US13472360
    • 2012-05-15
    • Anthony S. PartowPirooz Parvarandeh
    • Anthony S. PartowPirooz Parvarandeh
    • H03G11/00
    • H03K19/017509H03G11/00H03G11/004H03G99/00H03K3/356
    • A digital input circuit includes a series connection of a current limiter and a switch having a switch control input coupled between a signal input and ground, and a logic level shifter coupled to the signal input and having a switch control output coupled to the switch control input and a signal output, where a maximum amplitude at the signal input is greater than a maximum amplitude at the signal output. A digital input method includes coupling an input signal to ground with a current limiter by closing an electronic switch, providing an output signal responsive to the input signal, where a maximum amplitude of the input signal is greater than a maximum amplitude of the output signal, by latching the output signal while the input signal is above a threshold voltage and opening the electronic switch after the output signal is latched.
    • 数字输入电路包括电流限制器和具有耦合在信号输入和接地之间的开关控制输入的开关的串联连接和耦合到信号输入的逻辑电平移位器,并且具有耦合到开关控制输入的开关控制输出 以及信号输出,其中信号输入处的最大幅度大于信号输出处的最大振幅。 数字输入方法包括通过关闭电子开关将输入信号与电流限制器相耦合,提供响应于输入信号的输出信号,其中输入信号的最大幅度大于输出信号的最大幅度, 通过在输入信号高于阈值电压时锁存输出信号,并且在输出信号被锁存之后打开电子开关。