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UCC3817: design of 1.5kw Boost pfc

Bharat Upadhye
Prodigy 80 points
Part Number: UCC3817

For Design of BOOST PFC

input voltage- 100(min) to 300(max)

frequency- 50Hz

Output voltage- 400 (min)  450(max)

Output Power- 1.5Kw

Switching frequency - 100Khz

 

can be design using UCC3817 PFC ic ?

if not please suggest the suitable Boost PFC for Above mentioned design Parameters

thank you 

regards 

Bharat P. upadhye

 

  • 0
    TI__Mastermind 34465 points
    Hello Bharat P. upadhye,
    Is your output voltage fixed or do you want it to vary from 400V to 450V ?
    If your set point is fixed at 425V (with a 400V to 450V tolerance) then you can use the UCC3817 for this application.

    Regards
    John
  • 0 in reply to John Griffin1
    Prodigy 80 points

    hello john,

    Thank you for reply

    The output voltage is constant (i.e 425v ). and for 1.5KW design UCC3817/18 is it suitable?

    and 1) if output voltage is varying then what will be change in circuit and suggest me PFC controller IC for same. 

    2) what is measure difference between IC UCC3817/18 and UCC3819 

    i am little bit confused as mentioned in feature of UCC3817 in above Picture 1) is it for less than 150W and greater than 750W applications or

                                                                                             more than 150W and less than 750W application if so then is suitable for 1.5KW design?

    thank you

    regard,

    Bharat P. Upadhye

  • 0 in reply to Bharat Upadhye
    TI__Mastermind 34465 points
    Hello Bharat P. Upadhye

    If you wish to vary the output voltage then all you need do is change the voltage divider ratio on the VSENSE input.

    As I said in the previous reply you can use the UCC3817 for this application.
    My point is that you cannot get a 400V output with a 300V ac input.

    There is an error in the product comparison sheet above.
    CCM controllers are mainly used in applications greater than 150W, not less than 150W.

    Regards
    John
  • 0 in reply to John Griffin1
    Prodigy 80 points

    hello john,

    thank you for suggestion 

    so can i use universal input line 85V to 265V (as mentioned in data sheet UCC3817) to get Constant Output voltage (400v), 1.5KW design. ?

    thank you 

    regards

    Bharat P. Upadhye

  • 0 in reply to Bharat Upadhye
    TI__Mastermind 34465 points
    Hi Bharat P. Upadhye,
    Yes you can .
    The UCC3817 is a suitable choice this application

    Regards
    John