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    • 5. 发明申请
    • INTRINSICALLY SAFE UNIVERSAL I/O DEVICE USING PROGRAMMABLE ASIC
    • 使用可编程ASIC的内部通用I / O设备
    • WO2015174979A1
    • 2015-11-19
    • PCT/US2014/038074
    • 2014-05-15
    • GE INTELLIGENT PLATFORMS, INC.
    • ALLEY, Daniel, MiltonVILLAMIL, Robert
    • G06F3/00
    • H03K19/017581H03K19/17744
    • Provided a universal input output (I/O) device controllable via a controller for processing two or more signal types. The I/O device includes two or more channel switch blocks and two or more progammable gain amplifier (PGA), each of the PGAs corresponding to one of the channel switch blocks. The controller is configured to (i) control settings of each of the PGAs and (ii) connect each of the channel switch blocks to user terminals via an analog to digital converter (ADC) and at least one digital to analog converter (DAC) via the PGA settings. Each of the swith blocks is configurable for assignment to all of the signal types. Current levels associated with the PGA control settings are limited to threshold values to ensure intrinsic safety.
    • 提供了通过用于处理两种或更多种信号类型的控制器可控的通用输入输出(I / O)装置。 I / O设备包括两个或更多个通道切换块和两个或更多个可程序增益放大器(PGA),每个PGA对应于一个通道切换块。 控制器被配置为(i)控制每个PGA的设置,以及(ii)经由模数转换器(ADC)和至少一个数模转换器(DAC)将每个通道切换块连接到用户终端,经由 PGA设置。 每个swith块都可以配置为分配给所有的信号类型。 与PGA控制设置相关的当前级别限于阈值,以确保本质安全。