发明名称 System and Method for Measuring Reactive Power
摘要 A system and method for measuring reactive power which uses a pair of quadrate carriers to add a 90 degree phase shift to a voltage path or a current path in a power meter. The quadrate carriers have the same frequency but are offset in phase from each other by 90 degrees.
申请公布号 US2010085037(A1) 申请公布日期 2010.04.08
申请号 US20090473166 申请日期 2009.05.27
申请人 ANALOG DEVICES, INC. 发明人 NING YUN [YALE];LU XIUHONG [GEORGE]
分类号 G01R21/06 主分类号 G01R21/06
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