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SPTM34 Eval baord measure current

Ling Wu
Associate
Posted on June 15, 2018 at 17:43

Hey guys, I am using a STPM34 Evaluation board with a  STEVAL-IPE023V1 USB interface to measure a current from a simple circuit through SPI interface. for some reason I always read 0 for the current for C1 and 4.6189 for V1, I was wondering if you have a sketch on how to set up the circuit, do I have to hook up the Vref on the Eval board, I have a single phase system to power the circuit, and L1 and N coming back to the L1 and N terminals on the board, and CT going through the circuit. any ideas? 

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