• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 82 subscribers
  • Views 116 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:

TIDM-1000: TIDM-1000 have large iTHD when the experiment of Build 4

TIDM-1000: Are the parts used in the TIDM-1000 reference design completely consistent with the BOM?

LYON HUANG
Prodigy 30 points
Part Number: TIDM-1000

Hi all,

Are the parts used in the TIDM-1000 reference design completely consistent with the BOM?

According to the reference design, the efficiency can reach 98% under 208Vrms,L-L voltage testing.
But our actual measurement result is only 96%. We are looking for any differences in the hardware because both PF and ITHD have reached the standards of the manual.

Regards,

Lyon

  • 0
    TI__Mastermind 41905 points

    Lyon,

    I am unaware of any changes in the hardware.- Occasionally our contract manufactures will swap out simple components like simple resistors and caps with a similarly spec'd component. That being said all of the important things FETs, diodes, input inductors, Split caps should all be the exact specification. 

    Please note that peak efficiency of ~98% only occurs in a specific load range, it looks like ~500W-800W @208V RMS.

    Finally test setup can affect these results. If you are using an electronic load to estimate the power losses please note that it is important to use sense lines to avoid losses incurred in the high-current load wires.

    Regards,
    Cody