LTC3862-1 in 6 Phase Application

Hi, I want to design Vin:20-31 V and Vout:270 V Pout=8 kW, 6-Phase Boost Converter. But I have lots of problem related design. Firsty, The design is not run available. INTVc pin is below 10 V. And 3,4,5 and 6th phase is not running correctly. Iam sharing my simulation file.I am looking forward to your help. Thanks.

    (INTVcc Pin)

  (Vout for Phase 1 and Phase 2)

  (Phase 3,4,5 and 6)

28-270_8kW.asc

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  • 0
    •  Analog Employees 
    on Mar 2, 2021 1:06 AM

    Hi Yusuf,

    There are no output seen in your simulation since the VIN pins are connected by the VIN signal and connected directly with a capacitor which in turn blocks the DC input coming from the supply. for input filtering, connect the capacitor in parallel with the input to ground. Also for the Pout, what you are trying to accomplish is 8Kw. base from my computations, I think 100 ohms does not equate to 8kw as a load. You can try having the resistor rated at around 10 ohms to deliver a power of approximately 8kw. 

    Regards,

    Siglo

Reply
  • 0
    •  Analog Employees 
    on Mar 2, 2021 1:06 AM

    Hi Yusuf,

    There are no output seen in your simulation since the VIN pins are connected by the VIN signal and connected directly with a capacitor which in turn blocks the DC input coming from the supply. for input filtering, connect the capacitor in parallel with the input to ground. Also for the Pout, what you are trying to accomplish is 8Kw. base from my computations, I think 100 ohms does not equate to 8kw as a load. You can try having the resistor rated at around 10 ohms to deliver a power of approximately 8kw. 

    Regards,

    Siglo

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