Greetings.
What chip does the directional energy reading in a NET meter ? Any application notes/schematics ? [240VAC split phase]

The image below shows the moment the utility company is (rEC) RECeiving power <-- from the dwelling and the accumulated RECeived KWh energy; it periodically cycles to a DELivered display with the utility-to-dwelling energy figures :

 

Don't know if this is exactly the same model but it uses a custom ASIC per this.

https://www.smartmetereducationnetw...er Technical Guide1482163-201106090057150.pdf

 

Hi,

One commonly used Energy Measurement IC for a split-phase 240VAC setup purpose is the ADE7753, which is a single-phase energy measurement IC produced by Analog Devices. For detailed schematics or application notes, you'd better check the datasheet of ADE7753.

Hope it helps.

 

Microchip makes a line of power meter chips.