RD33771-48VEVM Reference Design

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RD33771-48VEVM Reference Design

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NewStarter
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Hi,

this issue has been pending for over 2 months, please help. below is my application diagram, when a battery connects a load which in series with "shunt" R470, battery's ground should be connects with EVB's ground which shound be a big pad of ground becuase the current flow is high.

But I don't see any pad ground on EVB, please suggest 

 

NewStarter_0-1648688989340.png

 

in general when use suggested battery emulator by NXP's website, the battery emulator is conencted with J3 but it will be an issue that battery's power doesn't connect to "shunt" R470, so how can shunt to detect battery's current?

hopefully someone can answer my questions, thanks 

 

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