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Hi there, I am Hong in Australia. I am going to design a BMS with EIS, and going to use BMA7418, 6402, 8420 etc. but in terms of generating AC excitation signal, I could not figure out. can you tell me how this board RDA8420TEIS0 generates AC excitation signals. can you post the schematic ? how those parts Q1, Q2, D2, D3, the inductor and the cap work ? I can't figure out, can you please help ? cheers
HI
You can try to download this board from below link for reference.
https://www.nxp.com/design/design-center/development-boards-and-designs/EVBMA8420T
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