BOOSTXL-DRV8301: What is the variable name to monitor the online phase current in InstaSpin- MotorWare

Bruce G

Intellectual 555 points

Part Number: BOOSTXL-DRV8301

Tool/software:

What is the gMotorVar variable name to monitor the online phase current of BLDC motor ?

over 1 year ago

0 Akshay Rajeev Menon over 1 year ago

TI__Mastermind 23951 points

Hey Bruce,

Let me direct your question to our C2000 team for support on INSTASPIN.

Best,
Akshay

0 Yanming Luo over 1 year ago in reply to Akshay Rajeev Menon

TI__Guru** 115540 points

InstaSPIN-FOC samples the three phase current and voltage for estimator. The sample data with ADC are in gAdcData object. The data values are PU format, not the real current with SI unit.

0 Bruce G over 1 year ago in reply to Yanming Luo

Intellectual 555 points

How can I compute the real time current which is through the phase winding of the motor?

0 Yanming Luo over 1 year ago in reply to Bruce G

TI__Guru** 115540 points

It's real current just using the PU format. You may just need to multiply the value with USER_IQ_FULL_SCALE_CURRENT_A. The current is instantaneous value, not a RMS value as measure by a meter. The motor control doesn't need the RMS.

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BOOSTXL-DRV8301: What is the variable name to monitor the online phase current in InstaSpin- MotorWare