phase current in BLDC motor

[eeks]

hello,

just wanted to run something by i case i'm missing something obvious,

i've got a small 24 volt BLDC motor (3 phase) that is fed from an allegro micro driver chip which in turn is fed from a lab power supply.

The power supply is set at 15 volts and the current is 312 mA

but when i use a clamp ammeter on each phase i'm measuring 1 A on each phase

how can this be?

many thanks for any input

 

[FvM]

To understand the drivers power balance, you need to measure also the motor voltage and the real power delivered to the motor.