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    • 111. 发明申请
    • Multi-channel measurement system and power supplying method for the system
    • 多通道测量系统和系统的供电方式
    • US20060019606A1
    • 2006-01-26
    • US11080433
    • 2005-03-16
    • Kentaro HazamaMakoto IshiiYukihiro Seki
    • Kentaro HazamaMakoto IshiiYukihiro Seki
    • H04B17/00
    • H04B17/0082
    • It is intended to realize a multi-channel measurement system and a power supply method for the system, the system being capable of performing maintenance of each of channel units and detectors without interrupting a power supply to the overall system. The multi-channel measurement system having a plurality of channel units each of which has a detector and performs measurement operation using a detection output from the detector and a power unit which supplies power to the channel units is characterized by a plurality of sub-switches respectively provided for the channel units, each of the sub-switches interrupting the power supply to the relevant channel unit, and a control unit for outputting a result of arithmetic processing of measurement outputs from the channel units and controlling the interruptions by the sub-switches.
    • 旨在实现用于系统的多通道测量系统和电源方法,该系统能够执行每个通道单元和检测器的维护,而不中断对整个系统的电源。 多信道测量系统具有多个信道单元,每个信道单元具有检测器并且使用来自检测器的检测输出进行测量操作,以及向信道单元供电的功率单元分别由多个子开关 提供给通道单元,每个子开关中断向相关通道单元的电源;以及控制单元,用于输出来自通道单元的测量输出的运算结果的结果,并控制子开关的中断。
    • 117. 发明授权
    • Motor controller
    • 电机控制器
    • US06603280B2
    • 2003-08-05
    • US09761702
    • 2001-01-18
    • Yasuo NotoharaYukio KawabataKazuo TaharaMakoto IshiiYuhachi Takakura
    • Yasuo NotoharaYukio KawabataKazuo TaharaMakoto IshiiYuhachi Takakura
    • G05F146
    • H02M5/4585F24F11/85F25B49/025F25B2600/021H02M2001/0025Y02B30/741
    • A converter module which receives an AC voltage, converts the AC voltage to a DC voltage, and outputs the DC voltage to a circuit for driving a motor. The converter module includes a switching device, a diode, and a control circuit which controls the DC voltage output by the converter module by controlling the switching device. The control circuit includes a plurality of DC voltage detection terminals which detect the DC voltage output by the converter module with respective different DC voltage detection gains, a selector which selects at least one of the DC voltage detection terminals in accordance with an external signal indicative of a speed of the motor, and outputs a DC voltage detection value, and a controller which controls the DC voltage output by the converter module in accordance with the DC voltage detection value output by the selector.
    • A转换器模块,其接收AC电压,将AC电压转换为DC电压,并将DC电压输出到用于驱动电动机的电路。 转换器模块包括开关器件,二极管和控制电路,其通过控制开关器件来控制转换器模块输出的直流电压。 控制电路包括多个直流电压检测端子,其检测由转换器模块输出的具有各自不同的直流电压检测增益的直流电压;选择器,其根据指示直流电压检测端子的外部信号选择至少一个直流电压检测端子 电动机的速度,并输出直流电压检测值;以及控制器,其根据由选择器输出的直流电压检测值来控制由转换器模块输出的直流电压。
    • 119. 发明授权
    • Refrigerator
    • 冰箱
    • US06244061B1
    • 2001-06-12
    • US09335781
    • 1999-06-18
    • Junichi TakagiMakoto IshiiNoriaki ArakawaTakeshi WakatabeHideki YoshidaHideyuki NakamuraHideo Kumakura
    • Junichi TakagiMakoto IshiiNoriaki ArakawaTakeshi WakatabeHideki YoshidaHideyuki NakamuraHideo Kumakura
    • F25B4900
    • F25B49/025F25B2600/021F25D2400/30Y02B30/741
    • When inverter control is implemented in a refrigerator or the like, the rotating speed of a compressor motor is often operated at the preset minimum rotating speed. At this time, there has been a problem that when the DC voltage is boosted, the efficiency of the circuit drops due to switching loss in the power element. Still more, when the DC voltage is boosted even at the minimum rotating speed, the lowest voltage of the DC voltage must be controlled at 163 V or more including the fluctuation of the voltage. Therefore, there has been a problem in that the efficiency of the compressor motor also drops. To avoid these problems, when the temperature within a compartment of a refrigerator is cooled and approaches a preset temperature, and when a conduction ratio of the compressor motor falls below a preset value or a command on a rotating speed of the compressor motor becomes a preset rotating speed and the actual rotating speed also becomes the preset rotating speed, the control of the converter control circuit is turned off.
    • 当在冰箱等中实现变频器控制时,压缩机电动机的转速通常以预设的最小转速运转。 此时存在直流电压升高的问题,由于功率元件的开关损耗,电路的效率下降。 此外,即使在最小旋转速度下直流电压升压时,直流电压的最低电压必须控制在包括电压波动在内的163V以上。 因此,存在压缩机电动机的效率也下降的问题。 为了避免这些问题,当冰箱的室内的温度被冷却并且接近预设温度时,并且当压缩机电动机的导通比低于预设值或者压缩机电动机的转速的指令变为预设值时 转速和实际转速也成为预设的转速,转换器控制电路的控制被关闭。