• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 81 subscribers
  • Views 219 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Original question:

CCS/TIDM-1000: CCS/TIDM-1000

TIDM-1000: Voltage feedback

Steven MacDonald1
Prodigy 200 points
Part Number: TIDM-1000

Hello,

I have changed some hardware to allow a higher pfc_bus voltage and Vac input voltage, the values are shown below.

I am not having any luck getting the unit to run. 

What should these values be for the resistor changes I have made.

vienna_settings.h

91  #define VIENNA_VAC_MAX_SENSE_VOLTS ((float32_t)500)
92  #define VIENNA_VDCBUS_MAX_SENSE_VOLTS ((float32_t)1010)
93  #define VIENNA_V_MAX_SENSE_VOLTS ((float32_t)606)

140   #define VIENNA_VBUS_REF_SET_VOLTS ((float32_t)800)

*******************************************************************************************************8

Vbus 

Rb changed the resistor to 1.62k 

 Rd changed the resistor to 9.09k

fVac

Rf changed the resistor to 1.62k 

Rh changed the resistor to 9.09k

Thanks

Steve

  • 0
    TI__Genius 15555 points

    Hi Steven,

    1. 

    91  #define VIENNA_VAC_MAX_SENSE_VOLTS ((float32_t)500)                 This could be set to be the same as VIENNA_V_MAX_SENSE_VOLTS for per unit value calculation
    92  #define VIENNA_VDCBUS_MAX_SENSE_VOLTS ((float32_t)1010)        This could be based on calculation.xlsx or TINA tool (considering the non-idealities of AMC 1301)
    93  #define VIENNA_V_MAX_SENSE_VOLTS ((float32_t)606)                       This could be based on calculation.xlsx or TINA tool (considering the non-idealities of AMC 1301)

    140   #define VIENNA_VBUS_REF_SET_VOLTS ((float32_t)800)   This is the output voltage ref.

    2. The thread below explains the different between the calculation and TINA simulation

    Regards,

    Chen