cancel
Showing results for 
Search instead for 
Did you mean: 

ICS Current sensing problem

vad_21
Associate
Posted on February 29, 2016 at 20:28

We use

the motor

control

library STM32 PMSM FOC V4.2

.For

current

control

using

2

ICS

,

but

of

all

the formula

to

calculate

the current , torque

used

 

value of

Rshunt(Ohm) and AmplificationNetworkGain

.

Current[A] = [Current(s16A) * Vdd micro(V)] / [65536 *

Rshunt(Ohm) * AmplificationNetworkGain]

.

.. How to solve this problem?

P.S.

All

boards STM  use  shunt resistors as current sensors

2 REPLIES 2
re.wolff9
Senior
Posted on March 14, 2016 at 10:33

If for example your ICS ouputs 10mV/A, you can assume a 1mOhm resistor and calculate from there that it would correspond with an  AmplificationNetworkGain of 10. 

Laurent Ca...
Lead II

The question has been moved from the "Motor Control Hardware" section to the "STM32 Motor Control" section (the question is about the STM32 MC SDK). 

Best regards