-
1.发明授权Fast detection of contact status with AC wetting voltage using ratiometric approach 有权使用比例法快速检测交流湿润电压的接触状态公开(公告)号：US08035528B2
公开(公告)日：2011-10-11
申请号：US12463554
申请日：2009-05-11
IPC分类号： G08B21/00
CPC分类号： H02J13/002
摘要： Fast detection of contact status with an AC wetting voltage using a ratiometric approach is described herein. In one embodiment, a voltage source wets the contact with a wetting voltage. A contact voltage monitor receives voltage obtained from the contact and converts the voltage to a first frequency output. A wetting voltage monitor receives wetting voltage provided from the voltage source to the contact and converts the sensed wetting voltage to a second frequency output. A processor generates a ratio between the first frequency output and the second frequency output and determines the status of the contact and the field wires associated with the contact in accordance with the generated ratio.
摘要翻译： 本文描述了使用比例法进行AC润湿电压的接触状态的快速检测。 在一个实施例中，电压源使接触件湿润润湿电压。 接触电压监视器接收从触点获得的电压，并将电压转换为第一频率输出。 润湿电压监测器接收从电压源提供给接触器的润湿电压，并将感测到的润湿电压转换为第二频率输出。 处理器产生第一频率输出和第二频率输出之间的比率，并且根据所产生的比率确定接触状态和与触点相关联的场线。
-
2.发明申请FAST DETECTION OF CONTACT STATUS WITH AC WETTING VOLTAGE USING RATIOMETRIC APPROACH 有权使用比例方法快速检测交流湿度电压接触状态公开(公告)号：US20100283512A1
公开(公告)日：2010-11-11
申请号：US12463554
申请日：2009-05-11
IPC分类号： H02M1/00
CPC分类号： H02J13/002
摘要： Fast detection of contact status with an AC wetting voltage using a ratiometric approach is described herein. In one embodiment, a voltage source wets the contact with a wetting voltage. A contact voltage monitor receives voltage obtained from the contact and converts the voltage to a first frequency output. A wetting voltage monitor receives wetting voltage provided from the voltage source to the contact and converts the sensed wetting voltage to a second frequency output. A processor generates a ratio between the first frequency output and the second frequency output and determines the status of the contact and the field wires associated with the contact in accordance with the generated ratio.
摘要翻译： 本文描述了使用比例法进行AC润湿电压的接触状态的快速检测。 在一个实施例中，电压源使接触件湿润润湿电压。 接触电压监视器接收从触点获得的电压，并将电压转换为第一频率输出。 润湿电压监测器接收从电压源提供给接触器的润湿电压，并将感测到的润湿电压转换为第二频率输出。 处理器产生第一频率输出和第二频率输出之间的比率，并且根据所产生的比率确定接触状态和与触点相关联的场线。
-
3.发明授权公开(公告)号：US09024485B2
公开(公告)日：2015-05-05
申请号：US13343164
申请日：2012-01-04
CPC分类号： H01H33/59 , G05B23/0264 , G06F15/00 , H01H47/00 , Y10T307/747
摘要： The present disclosure describes embodiments of a control system and a switch simulation device for use in the control system. The switch simulation device provides diagnostic capabilities that verify the accuracy and operability of sequence of events (SOE) data and SOE detection functions of the process control system. In one embodiment, the switch simulation device includes a pair of switches (e.g., metal-oxide field effect transistors (MOSFETS)) that are anti-parallel to one another. A drive circuit operates the switches at a pre-determined frequency to generate an output signal that simulates the position of switches that are coupled to components on the asset. The output signal impresses on contact inputs, which are coupled to the switches, and which are useful to generate the SOE data.
摘要翻译： 本公开描述了用于控制系统中的控制系统和开关模拟装置的实施例。 交换机仿真设备提供诊断功能，可以验证过程控制系统的事件序列（SOE）数据和SOE检测功能的准确性和可操作性。 在一个实施例中，开关模拟装置包括彼此反平行的一对开关（例如，金属氧化物场效应晶体管（MOSFET））。 驱动电路以预定的频率操作开关以产生模拟耦合到资产上的组件的开关的位置的输出信号。 输出信号印在触点输入上，这些触点输入端与开关相连，这对于生成SOE数据是有用的。
-
4.发明申请公开(公告)号：US20130173217A1
公开(公告)日：2013-07-04
申请号：US13343164
申请日：2012-01-04
IPC分类号： G06F15/00
CPC分类号： H01H33/59 , G05B23/0264 , G06F15/00 , H01H47/00 , Y10T307/747
摘要： The present disclosure describes embodiments of a control system and a switch simulation device for use in the control system. The switch simulation device provides diagnostic capabilities that verify the accuracy and operability of sequence of events (SOE) data and SOE detection functions of the process control system. In one embodiment, the switch simulation device includes a pair of switches (e.g., metal-oxide field effect transistors (MOSFETS)) that are anti-parallel to one another. A drive circuit operates the switches at a pre-determined frequency to generate an output signal that simulates the position of switches that are coupled to components on the asset. The output signal impresses on contact inputs, which are coupled to the switches, and which are useful to generate the SOE data.
摘要翻译： 本公开描述了用于控制系统中的控制系统和开关模拟装置的实施例。 交换机仿真设备提供诊断功能，可以验证过程控制系统的事件序列（SOE）数据和SOE检测功能的准确性和可操作性。 在一个实施例中，开关模拟装置包括彼此反平行的一对开关（例如，金属氧化物场效应晶体管（MOSFET））。 驱动电路以预定的频率操作开关以产生模拟耦合到资产上的组件的开关的位置的输出信号。 输出信号印在触点输入上，这些触点输入端与开关相连，这对于生成SOE数据是有用的。
-
公开(公告)号：US20120303297A1
公开(公告)日：2012-11-29
申请号：US13116869
申请日：2011-05-26
IPC分类号： G01R31/00
CPC分类号： G01R31/024
摘要： Certain embodiments of the invention may include systems, methods for providing determining electrical faults. According to an example embodiment of the invention, a method is provide for determining electrical faults. One method can include providing switch circuitry including at least one first switch detector resistor in parallel communication with at least one switch; providing terminal board circuitry including at least one terminal board resistor in parallel communication with the switch circuitry and in communication with a power source; receiving a power source reference; comparing a field voltage value to a generated reference voltage value, generating a comparison value output based at least in part on the comparison of the field voltage value and the generated reference voltage; and determining one of a plurality of field conditions based at least in part on the comparison value output.
摘要翻译： 本发明的某些实施例可以包括系统，用于提供确定电气故障的方法。 根据本发明的示例性实施例，提供一种用于确定电气故障的方法。 一种方法可以包括提供开关电路，其包括与至少一个开关并联通信的至少一个第一开关检测器电阻器; 提供端子板电路，其包括与开关电路并联通信并与电源通信的至少一个端子板电阻器; 接收电源参考; 将场电压值与产生的参考电压值进行比较，至少部分地基于场电压值与产生的参考电压的比较产生比较值输出; 以及至少部分地基于所述比较值输出来确定多个场条件中的一个。
-
公开(公告)号：US20130027238A1
公开(公告)日：2013-01-31
申请号：US13190016
申请日：2011-07-25
IPC分类号： H03M1/12
CPC分类号： G01R19/2503 , G01R19/22
摘要： Certain embodiments of the invention may include systems, methods, and apparatus for sensing AC voltage. According to an example embodiment of the invention, a method is provided for sensing AC voltage. The method includes providing a voltage sensing circuit in communication with an AC power source; rectifying an AC signal from the AC power source with rectifier circuitry of the voltage sensing circuit; applying a first voltage to an analog-to-digital (A-to-D) converter circuit, wherein the first voltage is across a second resistive element of a first half cycle voltage divider comprising a first resistive element and the second resistive element and in communication with a positive DC output of the rectifier circuitry; and analyzing the first digital voltage value and the second digital voltage value by a processor to determine a voltage of the AC power source.
摘要翻译： 本发明的某些实施例可以包括用于感测AC电压的系统，方法和装置。 根据本发明的示例性实施例，提供了一种用于感测AC电压的方法。 该方法包括提供与AC电源通信的电压感测电路; 利用所述电压检测电路的整流电路对来自所述交流电源的AC信号进行整流; 将第一电压施加到模数（A到D）转换器电路，其中所述第一电压跨过包括第一电阻元件和所述第二电阻元件的第一半周期分压器的第二电阻元件，并且在 与整流电路的正直流输出通信; 以及通过处理器分析所述第一数字电压值和所述第二数字电压值，以确定所述AC电源的电压。
-
公开(公告)号：US08768635B2
公开(公告)日：2014-07-01
申请号：US13116869
申请日：2011-05-26
CPC分类号： G01R31/024
摘要： Certain embodiments of the invention may include systems and methods for determining electrical faults. According to an example embodiment of the invention, a method is provided for determining electrical faults. One method can include providing switch circuitry including at least one first switch detector resistor in parallel communication with at least one switch; providing terminal board circuitry including at least one terminal board resistor in parallel communication with the switch circuitry and in communication with a power source; receiving a power source reference; comparing a field voltage value to a generated reference voltage value, generating a comparison value output based at least in part on the comparison of the field voltage value and the generated reference voltage; and determining one of a plurality of field conditions based at least in part on the comparison value output.
摘要翻译： 本发明的某些实施例可以包括用于确定电气故障的系统和方法。 根据本发明的示例性实施例，提供了一种用于确定电气故障的方法。 一种方法可以包括提供开关电路，其包括与至少一个开关并联通信的至少一个第一开关检测器电阻器; 提供端子板电路，其包括与开关电路并联通信并与电源通信的至少一个端子板电阻器; 接收电源参考; 将场电压值与产生的参考电压值进行比较，至少部分地基于场电压值与产生的参考电压的比较产生比较值输出; 以及至少部分地基于所述比较值输出来确定多个场条件中的一个。
-
公开(公告)号：US08756023B2
公开(公告)日：2014-06-17
申请号：US13180103
申请日：2011-07-11
CPC分类号： G01R31/025
摘要： Certain embodiments of the invention may include systems and methods for determining electrical ground faults. According to an example embodiment of the invention, a method is provided determining ground leakage electrical faults. The method includes providing a voltage source having a positive lead in communication with a first contact conductor and a negative lead in communication with a second field conductor, wherein the first contact conductor is connected to a ground through a first resistor Rp, and wherein the second field conductor is connected to the ground through a second resistor Rn; monitoring a first voltage potential associated with the first contact conductor; and determining a condition associated with the first contact conductor, based at least in part on the monitored first voltage potential.
摘要翻译： 本发明的某些实施例可以包括用于确定电接地故障的系统和方法。 根据本发明的示例性实施例，提供了一种确定接地漏电电故障的方法。 该方法包括提供具有与第一接触导体连通的正引线的电压源和与第二场导体连通的负引线，其中第一接触导体通过第一电阻器Rp连接到地，并且其中第二 场导体通过第二电阻器Rn连接到地; 监测与所述第一接触导体相关联的第一电压电位; 以及至少部分地基于所监视的第一电压电位来确定与所述第一接触导体相关联的条件。
-
公开(公告)号：US08743523B2
公开(公告)日：2014-06-03
申请号：US12845098
申请日：2010-07-28
IPC分类号： H02H3/20
CPC分类号： H03K17/081
摘要： Systems, methods, and apparatus for limiting voltage across a switch utilizing voltage clamping circuitry are provided. The voltage clamping circuitry may include a rectifier circuit comprising inputs and outputs, the inputs in parallel communication across operational circuitry; an electronic active switching device in parallel communication with the outputs of the rectifier circuit; and at least one Zener diode in parallel communication with the electronic active switching device. When voltage across the electronic active switching device and the Zener diode meets or exceeds a predetermined value, the current will flow through the electronic active switching device and limit voltage across the operational circuitry to within a voltage clamping circuitry voltage limit.
摘要翻译： 提供了利用电压钳位电路来限制开关两端的电压的系统，方法和装置。 电压钳位电路可以包括整流器电路，其包括输入和输出，跨操作电路并联通信的输入; 与整流电路的输出并联连接的电子有源开关装置; 以及与电子有源开关装置并联连通的至少一个齐纳二极管。 当电子有源开关器件和齐纳二极管两端的电压达到或超过预定值时，电流将流过电子有源开关器件，并将跨过工作电路的电压限制在钳位电路电压限制内。
-
公开(公告)号：US20120026632A1
公开(公告)日：2012-02-02
申请号：US12845098
申请日：2010-07-28
IPC分类号： H02H9/04
CPC分类号： H03K17/081
摘要： Systems, methods, and apparatus for limiting voltage across a switch utilizing voltage clamping circuitry are provided. The voltage clamping circuitry may include a rectifier circuit comprising inputs and outputs, the inputs in parallel communication across operational circuitry; an electronic active switching device in parallel communication with the outputs of the rectifier circuit; and at least one Zener diode in parallel communication with the electronic active switching device. When voltage across the electronic active switching device and the Zener diode meets or exceeds a predetermined value, the current will flow through the electronic active switching device and limit voltage across the operational circuitry to within a voltage clamping circuitry voltage limit.
摘要翻译： 提供了利用电压钳位电路来限制开关两端的电压的系统，方法和装置。 电压钳位电路可以包括整流器电路，其包括输入和输出，跨操作电路并联通信的输入; 与整流电路的输出并联连接的电子有源开关装置; 以及与电子有源开关装置并联连通的至少一个齐纳二极管。 当电子有源开关器件和齐纳二极管两端的电压达到或超过预定值时，电流将流过电子有源开关器件，并将跨过工作电路的电压限制在钳位电路电压限制内。
-
-
-
-
-
-
-
-
-
搜索结果
12 条记录 (耗时 0.019 秒)
