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MSP430I2040: Single Phase and DC Embedded Metering (Power Monitor) Using MSP430I2040

Part Number: MSP430I2040

Tool/software:

I had a small doubt in SLAA638A  .In reference document they are connecting AGND with neutral together.


Layout side asked to follow some specific method.
So in pcb what i had made the layout and schematic is like this.



when i am measuring ac voltage at the input . I am getting some oscillations in my supply . which ground has been connect with neutral.


whether this problem is causing due to ground pour?.

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