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19 条记录 (耗时 0.012 秒)

    RF ADAPTER FOR FIELD DEVICE WITH LOW VOLTAGE INTRINSIC SAFETY CLAMPING
    1.
    发明申请
    RF ADAPTER FOR FIELD DEVICE WITH LOW VOLTAGE INTRINSIC SAFETY CLAMPING 有权
    用于具有低电压内部安全钳位的现场设备的RF适配器

    公开(公告)号：US20090253388A1

    公开(公告)日：2009-10-08

    申请号：US12486269

    申请日：2009-06-17

    申请人： John A. Kielb ,  Brian L. Westfield ,  Kelly M. Orth

    发明人： John A. Kielb ,  Brian L. Westfield ,  Kelly M. Orth

    IPC分类号： H04B1/04

    CPC分类号： G05B19/4185 ,  G01D21/00 ,  G05B2219/31121 ,  G05B2219/33192 ,  G05B2219/34313 ,  G08C17/02 ,  Y02P80/114 ,  Y02P90/18 ,  Y02P90/86

    摘要： An adapter for coupling to a process control transmitter of the type used to monitor a process variable in an industrial process includes a first connection configured to couple to a first side of a two wire process control loop, a second connection configured to couple to a second side of the two wire process control loop and in series with a first connection to a process control transmitter, and a third connection configured to couple to a second connection of the process control transmitter. Wireless communication circuitry is coupled to at least the third connection and is configured to provide wireless communication for the process control transmitter. Intrinsic safety circuitry coupled to at least one of the first, second and third connections is configured to limit transfer of electrical energy to a value which is less than an intrinsic safety value.

    摘要翻译： 用于耦合到用于监测工业过程中的过程变量的类型的过程控制变送器的适配器包括被配置为耦合到双线过程控制回路的第一侧的第一连接，被配置为耦合到第二连接的第二连接 并且与第一连接到过程控制发送器串联，以及第三连接，其被配置为耦合到过程控制发送器的第二连接。 无线通信电路耦合到至少第三连接，并且被配置为为过程控制发送器提供无线通信。 耦合到第一，第二和第三连接中的至少一个的本质安全电路被配置为将电能的转移限制到小于本征安全值的值。

    Power regulator for use with wireless communication device
    2.
    发明授权
    Power regulator for use with wireless communication device 有权
    用于无线通信设备的电源调节器

    公开(公告)号：US08258749B2

    公开(公告)日：2012-09-04

    申请号：US12147469

    申请日：2008-06-26

    申请人： Mark Sinreich

    发明人： Mark Sinreich

    IPC分类号： H02J7/04

    CPC分类号： H02J7/025 ,  G05B19/0423 ,  G05B2219/25006 ,  G05B2219/25359 ,  G05B2219/25361 ,  G05B2219/25428 ,  G05B2219/33192 ,  G05B2219/34313 ,  H02J7/042

    摘要： A power regulator includes an initial input, an output, a feedback input, and a comparison circuit. The initial input is configured to receive loop current at an insertion voltage. The output is configured to deliver charging power. The charging power changes at least partially in response to a change in the loop current. The comparison circuit is in electrical communication with the feedback input and is configured to regulate the insertion voltage. A wireless communication device is in electrical communication with the output of the power regulator and is configured to be powered by the charging power.

    摘要翻译： 功率调节器包括初始输入，输出，反馈输入和比较电路。 初始输入被配置为在插入电压下接收回路电流。 输出配置为提供充电电力。 响应于回路电流的变化，充电功率至少部分地改变。 比较电路与反馈输入电连通，并配置为调节插入电压。 无线通信设备与功率调节器的输出电连通并且被配置为由充电功率供电。

    POWER MANAGEMENT CIRCUIT FOR A WIRELESS COMMUNICATION DEVICE AND PROCESS CONTROL SYSTEM USING SAME
    4.
    发明申请
    POWER MANAGEMENT CIRCUIT FOR A WIRELESS COMMUNICATION DEVICE AND PROCESS CONTROL SYSTEM USING SAME 有权
    用于无线通信设备的电源管理电路和使用该通信设备的过程控制系统

    公开(公告)号：US20090146502A1

    公开(公告)日：2009-06-11

    申请号：US12147469

    申请日：2008-06-26

    申请人： Mark Sinreich

    发明人： Mark Sinreich

    IPC分类号： H02J17/00

    CPC分类号： H02J7/025 ,  G05B19/0423 ,  G05B2219/25006 ,  G05B2219/25359 ,  G05B2219/25361 ,  G05B2219/25428 ,  G05B2219/33192 ,  G05B2219/34313 ,  H02J7/042

    摘要： A power management circuit includes a power regulator and a wireless communication device. The power regulator is configured to maintain a voltage level at an input and includes an input and an output. The input is configured to receive a current signal communicated between a power supply and a field device. The output is configured to deliver charging power. The wireless communication device is in electrical communication with the power regulator and is configured to receive the charging power from the power regulator to power the wireless communication device. The charging power is generated from the voltage level at the input and the current signal. The charging power also changes in response to a change in the current signal. Process control systems and methods are also provided.

    摘要翻译： 电源管理电路包括电源调节器和无线通信设备。 功率调节器被配置为在输入端保持电压电平并且包括输入和输出。 输入被配置为接收在电源和现场设备之间通信的电流信号。 输出配置为提供充电电力。 无线通信设备与功率调节器电通信并且被配置为从功率调节器接收充电电力以为无线通信设备供电。 充电功率是从输入端的电压电平和电流信号产生的。 充电功率也随着电流信号的变化而变化。 还提供过程控制系统和方法。

    Field device with dynamically adjustable power consumption radio frequency communication
    9.
    发明授权
    Field device with dynamically adjustable power consumption radio frequency communication 有权
    现场设备具有动态可调功率的射频通信功能

    公开(公告)号：US08452255B2

    公开(公告)日：2013-05-28

    申请号：US11475726

    申请日：2006-06-27

    申请人： Kelly M. Orth

    发明人： Kelly M. Orth

    IPC分类号： H04M1/00

    CPC分类号： G05B19/4185 ,  G01D21/00 ,  G05B2219/33192 ,  G05B2219/34313 ,  Y02P90/18

    摘要： A field device for use in an industrial process control or monitoring system includes terminals configured to connect to a two-wire process control loop configured to carry data and to provide power. In one embodiment, RF circuitry in the field device is configured for radio frequency communication having variable power consumption. In another embodiment, the RF circuitry is coupled to the field device through a separate digital communication bus. A method of modulating the power of RF communication based upon a process communication signal is also provided.

    摘要翻译： 用于工业过程控制或监测系统的现场设备包括被配置为连接到被配置为承载数据并提供电力的二线过程控制回路的终端。 在一个实施例中，现场设备中的RF电路被配置为具有可变功率消耗的射频通信。 在另一个实施例中，RF电路通过单独的数字通信总线耦合到现场设备。 还提供了一种基于处理通信信号调制RF通信功率的方法。