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    • 1. 发明公开
    • 테이블 탭 및 전력 측정 방법
    • 테이블탭및전력측정방법
    • KR1020130114709A
    • 2013-10-17
    • KR1020137020531
    • 2011-02-04
    • 후지쯔 가부시끼가이샤후지쯔 콤포넌트 가부시끼가이샤
    • 소네다,히로미쯔쯔보이,오사무나까자와,후미히꼬나가오,나오유끼호리,마까사즈
    • G01R21/06G01R19/165
    • G01R21/1333G01R21/133G08B21/182H01R13/6683H01R25/003H02J13/0006Y02B70/3266Y02B90/226Y04S20/16Y04S20/242
    • [Problem] To calculate power consumption with high accuracy at a jack portion in a power strip and in a power measurement method. [Solving Means] The problem is solved by a power strip including: a second power line 12 between which and a first power line 11 a power supply voltage is applied; a jack portion 1a; a current meter 30 configured to measure a current being supplied to an external electrical device from the jack portion 1a; a first photocoupler 41 including a first light emitting diode 41a connected between the first power line 11 and the second power line 12 and configured to output a first output signal S 1 whose level is changed when the power supply voltage exceeds a first threshold V 1 ; and a computing unit 33 configured to calculate a power value by using instantaneous values I(t) of the current measured by the current meter 30 and instantaneous values V(t) of the power supply voltage estimated from the length X 0 of a period when the level of the first output signal S 1 is changed.
    • [问题]要在电源板的插孔部分和功率测量方法中以高精度计算功耗。 [解决方案]该问题通过一种电源板解决,该电源板包括:第二电力线12,在第二电力线12与第一电力线11之间施加电源电压; 一个插座部分1a; 电流计30,被配置为测量从插座部分1a供应到外部电气设备的电流; 包括第一发光二极管41a的第一光电耦合器41,第一发光二极管41a连接在第一电力线11和第二电力线12之间,并且被配置为输出当电力供应电压超过第一阈值V 1时其电平发生改变的第一输出信号S 1; 以及计算单元33,其被配置为通过使用由电流计30测量的电流的瞬时值I(t)和从当前时间段的时间长度X 0估计的电源电压的瞬时值V(t)来计算功率值 第一输出信号S1的电平被改变。