dear TI support:
帮忙看看图中问题,诊断一下问题的方向,感谢感谢!
(1)在三个hall中断里换相
(2)PWM配置图片
(3)端电压图片
(4)在占空比比较小比如为8%的时候,端电压看起来是正常的
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dear TI support:
帮忙看看图中问题,诊断一下问题的方向,感谢感谢!
(1)在三个hall中断里换相
(2)PWM配置图片
(3)端电压图片
(4)在占空比比较小比如为8%的时候,端电压看起来是正常的
If you are using hall sensor for trapezoidal control, you may have to add some additional functions to filter the noise on the hall signals and to calibrate the install error as well in a real case. Unfortunately, there is no an example code for your reference, you have to do this work by yourself. You may try to search the related papers on the website and design these functions.
thanks for your good advices
(1)hall signal noise
(2)stall error
we will check those issues.
but It seems that this isue is lead angle.
I have read ti tech document<tuning Lead Angle in DRV10x Sensorless BLDC Drivers>
my control board :TMS320F280049+DRV8320H
if realize this lead angle algrithom, any software algrithom provided from ti? or redesign my hardware board?
You have to add a function to do a compensation as mentioned above. Unfortunately, C2000 doesn't have any reference code for this.