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vad_21
vad_21
Visitor II
February 29, 2016
Question

ICS Current sensing problem

  • February 29, 2016
  • 2 replies
  • 614 views
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

This topic has been closed for replies.

2 replies

re.wolff9
re.wolff9
Senior
March 14, 2016
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...
Laurent Ca...
Senior III
June 28, 2021

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

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