Power Forum Discussions

Hi there,

I am confused about the field weakening settings for the IMC controller. It seems like there are two different settings affecting the field weakening controller. 

1. In Solution designer setting-> motor control configuration>Control Regulators, there exists field weakening current limit as well as modulation threshold at which field weakening should get activated.

2. In motor control configuration>FOC and inverter setting, there is an SVPWM Over modulation enable/disable setting. 

How do these two settings work together? In other words, if I disable field weakening in 1 above (by setting current limit to 0%), while disabling over modulation in setting 2, will field weakening controller be activated? If yes, at what modulation will it get activated (linear modulation range is until 86.6% motor voltage)

My observation during testing when I set a field weakening current limit of 10% (I also had SVPWM over modulation disabled) was that when I increased speed of the motor, the 10% limit was not respected.  It is very strange that there is no documentation on the field weakening behaviour of the IMC in the reference or the software manual. Hence, I am forced to ask here.

Further question: In 1 above, is the field weakening current limit, the % of Id current allowed during field weakening?

hi

工程师

U2 D 和S直接之间的线宽我用的120mil, 四个S我也是用120mil 连接的， 这样对吗？

另外， C11是25V, 连接到D4，我用的20mil, 是对的吗？

期待你的回复

谢谢

We have EVAL_PS5401-25A Evalution board with us, we are using 4 switchers (A, B, C, D) and one LDO. We made configurations based on the schematic from the User Guide.

Switchers (A, B, C) working well, we are getting excepted output in GUI and even when we are measuring with the multimeter, but for Switcher D in GUI (PowIR Center Build tool) it's showing correct value but when we are measuring with multimeter, we are seeing difference in the output voltage.

Even we have checked the voltage by multimeter at feedback resistor (R43) there we are getting the half of the excepted output voltage, but at switcher port it's showing more voltage as attached in image.

Can you please let us know where we are going wrong or any hardware issue. 

Thanks & Regards

Navin

Dear All,

What will be the optimal gate cathode resistance value for a new thyristor using a multimeter.

What will be the impact of values greater than >=30 ohms across GK terminals to its firing boards.

We have faced issues with Gate Cathode Resistance value of Thyristors if more than 30 ohms.

#thyristorcheck

Hi guys, I use the new iMOTION solution design, but before I've used the old MCE designer and wizard to program my motors and fans. Recently I want to move to the new application iMOTION. I config the wizard first, build the program, connect and programming my fan. Then I go to dashboard and verify if my parameters are correct. In this moment my problems begin: if I don't increase Vd and Vq the fan never moves, but even the application tell me that this two are variable that are not saved in my wizard, so how can I run my fan without entering the dashboard? Plus, in the old MCE designer when I finish to programming my board and detach my infineon, the board works on it's own. So, what's the metter with the new application? I'm missing something? I have to do something after the programmer?

Thanks in advice

Hello,

As you can see in the attached document, “Bidirectional CLLC” is mentioned. I wonder that could you please send me the PLECS file OR could you please send me the document that shows how I can control CLLC when it is on the "forward and reverse mode conditions"?

Regards,

Mehmet

Hi support,

I would like to set-up a UART connection on my NAC1080 using the GPIO0 and GPIO2 in order to communicate with my PC the messages that the NAC1080 will be sending.

I've been reviewing the uart_drv.h library you have available and what I can't see is how the data transmission works.

There's a function called "transmit_bytes()" that send the Tx buffer data, but where's the Tx buffer? 

How could I edit the data on that buffer to be able to send the desired message?

Regards,

-K