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WEBENCH® Tools: High frequency Transformer based Buck Boost converter.

Anil Kumar9
Prodigy 30 points

Tool/software: WEBENCH® Design Tools

Hi Sir/ma'am

sir , we want to design transformer based Boost converter voltage .

please suggest any hardware design .

 input source : 12 V lead acid battery

output: 360V

thanks

  • 0
    TI__Expert 5550 points

    Hi Anil,

    Thanks for contacting us. We can use Webench power designer (link below) to get the solution list for our input requirements (In your case, Vin=12V and Vout =360V). We observed that for your required inputs, Webench only has push-pull topology enabled. For further assistance to choose a solution, I am forwarding this post to product experts.

    Webench power desinger link : https://webench.ti.com/power-designer/switching-regulator?powerSupply=0

    Best Regards,

    Umayal

  • 0 in reply to Umayal Ramanathan
    TI__Guru**** 189399 points

    Hi, Umayal,

    Apologize in advance, most of our staff is off for the end of year holidays. I have asked my colleagues to comment on your request.

    Unfortunately, I'm not familiar with our buck-boost product offerings, but you may want to poke around here in the meanwhile and see if you find anything to fit your needs.

     

  • 0
    TI__Mastermind 46905 points

    Hi Anil,

    what is the output current in your application?

  • 0 in reply to Jasper Li
    Prodigy 30 points

    Hi  Jasper Li,

      the output current i will be 3-8 Amp .

    thanks

  • 0 in reply to Anil Kumar9
    TI__Mastermind 46905 points

    Hi Anil,

    the output power is 360V*8A = 2.88kW. i think you would need a full bridge solution. do you need isolation between the primary and secondary sides.

  • 0 in reply to Jasper Li
    Prodigy 30 points

    Hi  Jasper Li,

     Actually we need 250 watt design ,which maximum current 4 amp,and maximum voltage 360 volts. and isolation between the primary and secondary sides.

  • 0 in reply to Anil Kumar9
    TI__Mastermind 46905 points

    Hi Anil,

    250W is not small. let me check what is suitable solution for this. 

  • 0 in reply to Anil Kumar9
    TI__Mastermind 29755 points

    Hi Anil,

    Thank you for connecting through TI E2E and my apologies that it is taking so long to help with your design question. I believe part of the confusion is because the design parameters have not been clearly communicated. For example some of the power requirements are not making sense: such as the need for 3A<Iout<8A and Vout=360V but Pout=250W. The only way I can see these parameters achieved is by a CC/CV driver - are your requirements for some sort of LED driver or battery charger where you need CC and CV limited to 250W? 12 V input - is this for an automotive application? It also sound as if you need isolation - is this correct? Your original inquiry was  "transformer based boost" - a flyback converter is an isolated boost converter by definition of the large signal transfer function: Boost is Vo/Vin=1/(1-D); Flyback (isolate boost) is Vo/Vin=(Ns/Np)*D*[1/(1-D)]. 250W would be asking a lot from a flyback, especially during the case when delivering 8A. I hope these considerations help. I would recommend we close this E2E thread since it is not contributing help to your design or the E2E community. I would recommend that you clarify your design parameters and if help/guidance is still needed, please open a new E2E thread?

    Regards,

    Steve M