Voltage monitoring device and inverter device
    1.
    发明申请
    Voltage monitoring device and inverter device 有权
    电压监控装置及逆变器装置

    公开(公告)号:US20070035972A1

    公开(公告)日:2007-02-15

    申请号:US11202761

    申请日:2005-08-12

    IPC分类号: H02M3/335

    摘要: A voltage monitoring device 30 includes an AC input portion 31, a rectifier circuit 32, and a detection circuit 33. The AC input portion 31 receives alternating current output from a DC-AC inverter unit 13. The rectifier circuit 32 rectifies the alternating current received at the AC input portion 31. The rectifier circuit 32 is formed by a full-wave rectifier circuit. The detection circuit 33 detects the output voltage of the rectifier circuit 32. The detection circuit 33 includes a differential amplifier circuit 34. First and second capacitors C1 and C2 are respectively connected to two wires 36a and 36b, which connect the AC input portion 31 and the rectifier circuit 32. The capacitors C1 and C2 are set to have the same capacitance.

    摘要翻译: 电压监视装置30包括AC输入部31,整流电路32和检测电路33.AC输入部31接收从DC-AC逆变器部13输出的交流电流。整流电路32对接收到的交流电进行整流 整流电路32由全波整流电路构成。 检测电路33检测整流电路32的输出电压。检测电路33包括差分放大电路34.第一和第二电容器C 1和C 2分别连接到两个连接AC的电线36a和36b 输入部分31和整流电路32.电容器C 1和C 2被设置为具有相同的电容。

    Operation control circuit
    2.
    发明授权
    Operation control circuit 有权
    操作控制电路

    公开(公告)号:US07859873B2

    公开(公告)日:2010-12-28

    申请号:US12026087

    申请日:2008-02-05

    IPC分类号: H02M7/44 H02M7/537

    CPC分类号: H02M7/48 H02M2001/007

    摘要: It is an object of the present invention to provide an operation control circuit without using a photo-coupler. The operation control circuit controls the operation of an LED in a DC/AC inverter comprising a voltage conversion circuit, a DC/AC conversion circuit for converting output voltage of the voltage conversion circuit to two pieces of AC voltage each with an opposite phase, and an LED which is lit when AC voltage is outputted from the DC/AC conversion circuit. The operation control circuit comprising a rectifier circuit, capacitors connected between the input terminal of the rectifier circuit and the output terminal of the DC/AC conversion circuit, and a comparator circuit connected to the same ground level as the ground level connected to the LED for lighting the LED when voltage V1 outputted from the rectifier circuit is higher than a threshold Vref1.

    摘要翻译: 本发明的目的是提供一种不使用光电耦合器的操作控制电路。 操作控制电路控制包括电压转换电路,用于将电压转换电路的输出电压转换成具有相反相位的两个AC电压的DC / AC转换电路的DC / AC逆变器中的LED的操作,以及 当从DC / AC转换电路输出交流电压时点亮的LED。 该运算控制电路包括整流电路,连接在整流电路的输入端和DC / AC转换电路的输出端之间的电容器以及连接到与LED连接的地电平相同的地电平的比较器电路, 当从整流电路输出的电压V1高于阈值Vref1时点亮LED。

    Voltage monitoring device and inverter device
    3.
    发明授权
    Voltage monitoring device and inverter device 有权
    电压监控装置及逆变器装置

    公开(公告)号:US07529106B2

    公开(公告)日:2009-05-05

    申请号:US11202761

    申请日:2005-08-12

    IPC分类号: H02M1/12

    摘要: A voltage monitoring device 30 includes an AC input portion 31, a rectifier circuit 32, and a detection circuit 33. The AC input portion 31 receives alternating current output from a DC-AC inverter unit 13. The rectifier circuit 32 rectifies the alternating current received at the AC input portion 31. The rectifier circuit 32 is formed by a full-wave rectifier circuit. The detection circuit 33 detects the output voltage of the rectifier circuit 32. The detection circuit 33 includes a differential amplifier circuit 34. First and second capacitors C1 and C2 are respectively connected to two wires 36a and 36b, which connect the AC input portion 31 and the rectifier circuit 32. The capacitors C1 and C2 are set to have the same capacitance.

    摘要翻译: 电压监视装置30包括AC输入部31,整流电路32和检测电路33.AC输入部31接收从DC-AC逆变器部13输出的交流电流。整流电路32对接收到的交流电进行整流 整流电路32由全波整流电路构成。 检测电路33检测整流电路32的输出电压。检测电路33包括差分放大电路34.第一和第二电容器C1和C2分别连接到两个电线36a和36b,两条电线36a和36b将AC输入部分31和 整流电路32.电容器C1和C2被设置为具有相同的电容。

    OPERATION CONTROL CIRCUIT
    4.
    发明申请
    OPERATION CONTROL CIRCUIT 有权
    操作控制电路

    公开(公告)号:US20080198639A1

    公开(公告)日:2008-08-21

    申请号:US12026087

    申请日:2008-02-05

    IPC分类号: H02M7/44

    CPC分类号: H02M7/48 H02M2001/007

    摘要: It is an object of the present invention to provide an operation control circuit without using a photo-coupler. The operation control circuit controls the operation of an LED in a DC/AC inverter comprising a voltage conversion circuit, a DC/AC conversion circuit for converting output voltage of the voltage conversion circuit to two pieces of AC voltage each with an opposite phase, and an LED which is lit when AC voltage is outputted from the DC/AC conversion circuit. The operation control circuit comprising a rectifier circuit, capacitors connected between the input terminal of the rectifier circuit and the output terminal of the DC/AC conversion circuit, and a comparator circuit connected to the same ground level as the ground level connected to the LED for lighting the LED when voltage V1 outputted from the rectifier circuit is higher than a threshold Vref1.

    摘要翻译: 本发明的目的是提供一种不使用光电耦合器的操作控制电路。 操作控制电路控制包括电压转换电路,用于将电压转换电路的输出电压转换成具有相反相位的两个AC电压的DC / AC转换电路的DC / AC逆变器中的LED的操作,以及 当从DC / AC转换电路输出交流电压时点亮的LED。 该运算控制电路包括整流电路,连接在整流电路的输入端和DC / AC转换电路的输出端之间的电容器以及连接到与LED连接的地电平相同的地电平的比较器电路, 当从整流电路输出的电压V 1高于阈值Vref 1时点亮LED。

    Process gas chromatographic system
    5.
    发明授权
    Process gas chromatographic system 失效
    工艺气相色谱系统

    公开(公告)号:US6004514A

    公开(公告)日:1999-12-21

    申请号:US116581

    申请日:1993-09-07

    摘要: A gas chromatographic system for analyzing gas components includes an analyzer, a constant temperature oven, an analyzer case, an indicator, an integrated sample conditioner, and a coupler. The analyzer includes a sample valve having a detector and a heater built therein and first and second columns wound around the periphery of the sample valve. The constant temperature oven accommodates the analyzer unit therein. The analyzer case accommodates the constant temperature oven. The indicator is protruded from the analyzer case to display analysis processes and results. The integrated sample conditioner provides an optimal condition for analysis. The coupler couples the analyzer unit with the sample conditioner so as to supply a sample gas and one of a carrier gas and a reference gas from the sample conditioner to the analyzer unit.

    摘要翻译: 用于分析气体组分的气相色谱系统包括分析仪,恒温烘箱,分析仪盒,指示器,集成样品调节器和耦合器。 分析仪包括具有检测器和内置加热器的样品阀,第一和第二列缠绕在样品阀的周边。 恒温烘箱将分析器单元容纳在其中。 分析仪外壳可容纳恒温烤箱。 指示器从分析仪箱突出显示分析过程和结果。 综合样品调理剂为分析提供了最佳条件。 耦合器将分析器单元与样品调节器耦合,以将样品气体和载气和参考气体之一从样品调节器供应到分析器单元。