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User20393
Level 1
5 replies posted 10 sign-ins 5 questions asked
Level 1

Hi

Regarding to EVAL_3K3W_TP_SIC

I'm trying to change the dead time thru below GUI.

the prolem are:

1) I have no idea what is the actual time (ns) of count unit in GUI, for example MAX 12 counts  CLK what is the actaual time?

2) For reg1_limit 4,172  counts of current ADC ,  What is the actual current (A)?

3) Current ADC in GUI mean output current, right?

4) Diode_to_Switch,   what dowws it mean? 

User20393_0-1654589698731.png

 

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Vinay
Moderator
Moderator First comment on KBA 50 replies posted 100 sign-ins
Moderator

Hello,

Good Day!

Thanks for posting your question in Infineon Community.

 

  1. I have no idea what is the actual time (ns) of count unit in GUI, for example MAX 12 counts  CLK what is the actaual time?

 

Dead-time is introduced using Infineon SMPS GUI. Dead-time parameters update via UART communication. Each step for calculating dead time is calculated based on clock frequency. The clock frequency is 96MHz. Please refer control_interrupts.h file in the Dave project.

 

  1. For reg1_limit 4,172  counts of current ADC ,  What is the actual current (A)?

             Actual current = 7A

  1. Current ADC in GUI mean output current, right?

No, it's inductor current Input side

  1. Diode_to_Switch,   what dowws it mean? 

Please refer to EVAL_3K3W_TP_PFC_SiC_GUIintro.docx document for a better understanding of Diode to Switch and Switch to Diode transition in section "2.1 Current dependent dead time concept"

 

Best Regards,
Vinay

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Vinay
Moderator
Moderator First comment on KBA 50 replies posted 100 sign-ins
Moderator

Hello,

Good Day!

Thanks for posting your question in Infineon Community.

 

  1. I have no idea what is the actual time (ns) of count unit in GUI, for example MAX 12 counts  CLK what is the actaual time?

 

Dead-time is introduced using Infineon SMPS GUI. Dead-time parameters update via UART communication. Each step for calculating dead time is calculated based on clock frequency. The clock frequency is 96MHz. Please refer control_interrupts.h file in the Dave project.

 

  1. For reg1_limit 4,172  counts of current ADC ,  What is the actual current (A)?

             Actual current = 7A

  1. Current ADC in GUI mean output current, right?

No, it's inductor current Input side

  1. Diode_to_Switch,   what dowws it mean? 

Please refer to EVAL_3K3W_TP_PFC_SiC_GUIintro.docx document for a better understanding of Diode to Switch and Switch to Diode transition in section "2.1 Current dependent dead time concept"

 

Best Regards,
Vinay
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User20393
Level 1
5 replies posted 10 sign-ins 5 questions asked
Level 1

Thanks a lot !!! Vinay

By the way , I can't find the excel file "PFC_3K3_totempole_DTcalc_GUI..xlsx for parameter calculation.

Pls help to share

 

Thanks

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Vinay
Moderator
Moderator First comment on KBA 50 replies posted 100 sign-ins
Moderator

Hello @User20393,

Good Day!

 

Please find the requested excel file for parameter calculation.

 

Thank you!

 

Best Regards,
Vinay
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