How to config current sensing in MCSDK6?

[Junde]

Hi there,

I am trying to configure an MCSDK6 project by reference to EVSPIN32G4.

On the page of current sensing, I see some config as below:

  

To my understanding, the three shunt current sensing circuits should utilize three operational amplifiers.

Why are there just two?

Thanks for the help!

Best wishes to you guys.

 

[GMA]

Hello @Junde,

The MCSDK, for the field-oriented control (FOC) 3-shunt topology of the EVSPIN32G4, uses two ADC converters associated with two internal operational amplifiers with a shared phase. Since I1 + I2 + I3 = 0, two of the three currents are sampled, while the third current is computed.