Tool/software:
Hello. I have a problem reading AC voltages with AMC1351DWVR. I used 'https://www.ti.com/lit/ds/symlink/amc1351.pdf' as a reference design. I will upload a photo of my schematic, which is designed in KiCad software and next to it, the reference schematics from TI. The problem is that DC voltage is sensed properly by my ADC, AC voltages are not measured. Is there any problems with AMC1351 or TLV6001IDBVR when sensing high switching frequencies (aprox. 10-15kHz). I measure terminal voltages (VABC0) and I create a software "pseudo - neutral", in order to acquire phase voltages. This is declared, so everyone understands that the AC voltage sensor is measuring +VDC and 0, with a rate dependent on the duty cycle and the switching frequency of the modulation. Finally, I have completed the LT-Spice model, which agrees with the reference design. Is there anyone who has the same problem as me? The AMC1351DWVR is not responding to AC measurement, only to DC, but does not burn. It just denies outputting the monitored voltage. Thank you everyone, I would appreciate your responses, to fix the problem.
Sincerely,
Antonios Sideris, PHD Student, National Technical University of Athens
