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TIDA-010039: PWM control scheme

Wayne Huang
Genius 17225 points

Part Number: TIDA-010039
Other Parts Discussed in Thread: TIDM-1000

Dear Champs,

I am asking this for our customer.

1) When comparing this design with Vienna PFC (like TIDM-1000), what are the advantages and disadvantage?

2) In this design, do you use SVPWM or other PWM scheme? If others, what is it and why? Would you please roughly explain this for the user to refer to?

Wayne Huang

  • 0
    TI__Intellectual 2815 points

    Hi Wayne,

    Please find my reply below.

    1. When comparing this design with Vienna PFC (like TIDM-1000), what are the advantages and disadvantage?

    ANS: The switching Scheme used in the TIDA-1000 is uni-directional in nature. It cannot be used in bi-directional applications. The Switching scheme in TIDA-010039 is 3L2T, which is Bi-Directional.

    Apart from this, the TIDM-1000 switching scheme is easier to implement and has reduced cost as there are no 1200V SiC FETs needed. But also has reduced efficiency at high power levels.

    The 3L2T is slightly more expensive due to the 1200V SiC FETs

  • 0 in reply to Ramkumar S
    TI__Intellectual 2815 points

    Hi Wayne,

    Please find my reply below.

    1. When comparing this design with Vienna PFC (like TIDM-1000), what are the advantages and disadvantage?

    ANS: The switching Scheme used in the TIDA-1000 is uni-directional in nature. It cannot be used in bi-directional applications. The Switching scheme in TIDA-010039 is 3L2T, which is Bi-Directional.

    Apart from this, the TIDM-1000 switching scheme is easier to implement and has reduced cost as there are no 1200V SiC FETs needed. But also has reduced efficiency at high power levels.

    The 3L2T is slightly more expensive due to the 1200V SiC FETs but gives higher efficiency at high power levels.

    2.  In this design, do you use SVPWM or other PWM scheme? If others, what is it and why? Would you please roughly explain this for the user to refer to?

    ANS: Currently the switching scheme is 3 level SPWM (not SVPWM).  The control signals are generated based on 3L2T topology.

    Best Regards,

    Ram