Microcontrollers Forum Discussions

I am running bldc motor with the help of hall sensor but not able to get full no load speed.This motor has 1000 rpm but getting only upto 3500 rpm.

I am using example code to drive this motor whether this code support 10000 rmp.

My motor is working at 48v,750 W.Could you help to resolve this problem 

Hello everyone! I have some questions about tle9879 driver bldc, pwm frequency selection, and would like to get answers.

For the same motor, the motor inductance parameter is measured and the results are measured:

Frequency 1khz ------Ls-900uH Lr-0.8Ω

Frequency 10khz ------Ls-880uH Lr-5.4Ω

Frequency 15khz ------Ls-850uH Lr-10.2Ω

Frequency 20khz ------Ls-830uH Lr-16.1Ω

If you look at it according to impedance, the lower the frequency, the lower the impedance, then the greater the output capability of the motor; conversely, if the frequency is high and the impedance is high, then the output capability will be reduced.

But the actual test to see, the results are not so, ccu6- >T12 is also on the pwm setting frequency 10hkz when the carry capacity is very weak, a little bit of load may be held back; and 20khz than 10khz carry capacity is much stronger. Here may have something to do with the renewal current, but exactly what is not understand.

Anyone who understands the relationship between frequency and torque would be grateful for an answer!

smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/MOTIX-MCU/BLDC-PWM%E9%A2%91%E7%8E%87%E5%92%8C%E6%89%AD%E7%9F%A9%E7%9A%84%E9%80%89%E6%8B%A9/td-p/742036

I would to know what would be an alternative to SAF-XC167CI-16F40F BB for new designs ,that does not require significant code changes.

I also have the old "XMC4800_AUT_Base-V2.1" with obsolete BCM5241 PHYs. Years ago I downloaded the demo software from the website, inserted the secret SSC source part and the board was up and running.

Now I also bought the newer "XMC4800_RELAX_ECAT_V2.1" with ADIN1200 PHYs and I was wondering how I can access the demo project source. I searched the website, I searched the ModusToolbox and I searched the Github with no success. 

Due to the SSC source limitation I know that it is not possible to get the entire project, but isn't there a project with the SSC part removed? Can someone please give me a hint?

Hello Infineon Team,

I am using TC377_ED_EX AURIX Tricore microcontroller, I have integrated RTOS code with my general configurations, code was built successfully in Tricore IDE, however after flashing code in Lauterbach T32 debugger, and doing step over at every function and getting trap at __mtcr().

If code is in trap, then in some trap registers it should show status in trap registers, but in Trap registers also there is no specific value only 0000000 given.

for better understanding, I am attaching screenshots of call stack, error window, & registers value log

Hope you will provide me better solution to overcome this issue.

Thanks,

Poonam

Hi Sir,

想請問6EDL7141  OCP 與current amplifier 的位置關係

datasheet 的方塊圖OCP是在current amplifier之前

application note的方塊圖 OCP在current amplifier之後

請問何者是正確的呢?

謝謝!

https://www.infineon.com/dgdl/Infineon-6EDL7141-DataSheet-v01_08-EN.pdf?fileId=8ac78c8c8e7ead30018ec7bd6aac46f3

https://www.infineon.com/dgdl/Infineon-AN_2306_PL88_2307_181713_battery_powered_BLDC_motor_drive_design_using_the_6EDL71x1-ApplicationNotes-v01_00-EN.pdf?fileId=8ac78c8c8929aa4d0189915b093c5f87&da=t

你好！

在NORMAL状态下，我用WriteRow写NAR时报0xF00000AA（Writes are disabled in safety register）错误，

请问是什么原因？另外，可否提供使用WriteRow的例程？谢谢！

补充一点：这部分代码我是放在CM4里的，这可以吗？