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The ADE7751 and ADE7755 are high accuracy energy measurement ICs. The part specifications surpass the accuracy requirements as quoted in the IEC1036 standard. The ADE7751 incorporates a novel fault detection scheme that both warns of fault conditions with the logic output FAULT but allows the ADE7751 to continue accurate billing during a fault event.
The ADE7751 and ADE7755 are high accuracy energy measurement ICs. The part specifications surpass the accuracy requirements as quoted in the IEC1036 standard. The ADE7751 incorporates a novel fault detection scheme that both warns of fault conditions with the logic output FAULT but allows the ADE7751 to continue accurate billing during a fault event. The ADE7751 does this by continuously monitoring both the phase and neutral (return) currents. A fault is indicated when these currents differ by more than 12.5%. Billing is continued using the larger of the two currents. The FAULT output is connected to an LED on the evaluation board. The ADE7751 supplies average real power information on the low frequency outputs F1 and F2. These logic outputs may be used to directly drive an electromechanical counter or interface to an MCU. The evaluation board provides screw connectors for easy connection to an external counter. The CF logic output gives instantaneous real power information. This output is intended to be used for calibration purposes. The evaluation board allows this logic output to be connected to an LED or Opto isolator. The REVP logic output goes high when negative real power is detected. This causes an LED on the evaluation board to switch on. The ADE7751/ADE7755 evaluation board can easily be converted into an energy meter by the addition of a local power supply and the connection of the appropriate transducers. A large amount of prototype area is made available on the evaluation board for this purpose. Datasheet: PDF Specifications: Packing List: 1Pc * AD7751ARS High Accuracy Energy Meter IC