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通过AT73C500能量仪器芯片的测量 对定义有效功率和无效

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  • 标      签: AT73C500

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This application note clarifies some concepts related to the definition of sign and direction of active power and reactive power, as being measured by theAT73C500 energy meter chip.Geometric representations of quantities are referenced to a standard unity circle,see Figure 1. The unity circle is divided i n to four quadrants, as shown in Figure 1. The quadrants are numbered I...IV in a counterclockwise manner.
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