Apr 09, 2021
05:26 AM
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Apr 09, 2021
05:26 AM
Hi,I'm using TLE9879 for cooling fan ,and Controller work in senseless BEMF_model.aim is 14V,700W.
It was succeed run without load(no fans,just a motor),and speed 3150 RPM,4 POLE_PAIRS,14V,3A.
But, when I try run with load,the controller stop at about 22A, I add printf to the Emo_BEMF,found the software stop motor at :
case EMO_MOTOR_STATE_RUN:
{if (Emo_Bemf.timeoutcounter > (3 *Emo_Bemf.difftimeout))
{Emo_StopMotor();}
}
And the further found is:
The bemf model BEMF Comparetars,suddenly stop work!
so miss the CCPOS edge ,and T13 can't start .then A OC occur before software stop the motor.
I'm sure the (SCU-DM) work well ,systicks run stable.
IC is tle9879,MOSFET is IPD90N04S405
if anyone know how or why, please help me out.thank you very match!
I will be grateful if anyone answers!
It was succeed run without load(no fans,just a motor),and speed 3150 RPM,4 POLE_PAIRS,14V,3A.
But, when I try run with load,the controller stop at about 22A, I add printf to the Emo_BEMF,found the software stop motor at :
case EMO_MOTOR_STATE_RUN:
{if (Emo_Bemf.timeoutcounter > (3 *Emo_Bemf.difftimeout))
{Emo_StopMotor();}
}
And the further found is:
The bemf model BEMF Comparetars,suddenly stop work!
so miss the CCPOS edge ,and T13 can't start .then A OC occur before software stop the motor.
I'm sure the (SCU-DM) work well ,systicks run stable.
IC is tle9879,MOSFET is IPD90N04S405
if anyone know how or why, please help me out.thank you very match!
I will be grateful if anyone answers!
- Tags:
- IFX
3 Replies
Apr 16, 2021
06:20 PM
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Apr 16, 2021
06:20 PM
Hi,
In my opinion, there are some bugs in the BEMF demo program.You can try to change the BEMF filter time.By the way, do you come from SDU?You can send email to me.
In my opinion, there are some bugs in the BEMF demo program.You can try to change the BEMF filter time.By the way, do you come from SDU?You can send email to me.
Jul 24, 2023
03:04 AM
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Jul 24, 2023
03:04 AM
Hi,
Can you talk about what's the bugs in the BEMF demo program?
Jul 12, 2023
08:23 PM
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Jul 12, 2023
08:23 PM
I meet the same issiue. Did you find the answer? there are some bugs in the BEMF demo program.but i don't know