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UCC28064A: Effect of Inductor Accuracy

Nariaki Ogasawara
Intellectual 1215 points
Part Number: UCC28064A

Hi Team,

 I have question about Effect of Inductor Accuracy.
 The Interleaved PFC is controlled 180deg switching.
 In case of the Inductor accuracy is +/- 10%,
 1. How will it affect the behavior?
 2. Does it affect phase 180 degrees? 

Regards,
Ogasawara

  • 0
    TI__Guru 73555 points
    Refering to the datasheet, page 15, Section 8.3.2, Natural Interleaving, where it describes the device has mechanism to adjust control to maintian 180-degree phase and tight boost inductor tolerance is not required for 180-degree phase. But inductor tolerance will affect peak current based on Equation (1) on page 16.