Microchip Reference Design Energy Meter for MCP3905

The MCP3905 Energy Meter Reference Design is a stand-alone energy meter. It can act as either a stand alone energy meter, or as the analog front end design for LCD microcontroller based meters. The MCP3905 design is specified with an energy measurement error of 0.1% typical across 1:500 dynamic range for high accurate energy meter designs. This reference design is compliant with EMC requirements per energy metering standards IEC62053 and legacy IEC61036, IEC1046 and IEC687.

Demonstration board is a ready to use single-chip energy meter
Direct connection to line for energy meter, no transformers required
On-board power supply circuitry
Resistive network and Output LED for meter calibration
Resistor shorts for gain and frequency selection

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Energy/Power Measurement - Microchip