DC Boost converter : 40~60 VDC to 60 VDC

Discussion in 'Power Electronics' started by Zara Engineer, Aug 10, 2016.

  1. Zara Engineer

    Thread Starter Member

    Feb 6, 2015
    53
    0
    hello everyone,

    I searched on internet for a boost converter which converts from 40~60 to 60 V.
    I found an application note SLVA372C for TI talking about the calculaction of boost converter.
    I was very easy without tell me what IC I should use for my application.

    Please If anyone has any application note or ready information to use it in my project, please tell me.

    thank you
     
    • 222.JPG
      222.JPG
      File size:
      81.8 KB
      Views:
      7
  2. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    60V at what current?
     
    Zara Engineer likes this.
  3. Zara Engineer

    Thread Starter Member

    Feb 6, 2015
    53
    0
    60 V at 1A current maximum
     
  4. Bordodynov

    Active Member

    May 20, 2015
    643
    188
    See

    40Vto60V_1A.png
     
    Zara Engineer likes this.
  5. Zara Engineer

    Thread Starter Member

    Feb 6, 2015
    53
    0
    Hello Bordodynov
    yes I see , it's a good circuit , but the maximum Vin voltage in datasheet is 16V only , is this realized ??
    another question about the input , what is the maximum input voltage ? 60 V?
    ss.JPG
    thank you
     
  6. Jony130

    AAC Fanatic!

    Feb 17, 2009
    3,957
    1,097
    Haven't you noticed D1 Zener diode in Bordodynov diagram ?
     
    Zara Engineer likes this.
  7. Bordodynov

    Active Member

    May 20, 2015
    643
    188
    The supply voltage is limited by Zener diode chip. In this case, a parametric voltage stabilizer. It is necessary to monitor the power that is dissipated zener diode and a resistor. I think that the resistance of the resistor must be done 5.6kOhm. I used this converter for 50-90 volts, only without zener, power supply I had 11 volts.
     
    Zara Engineer likes this.
  8. Zara Engineer

    Thread Starter Member

    Feb 6, 2015
    53
    0
    @Jony130 yes I see that, thank you.
    @Bordodynov it's a good design and I like it but the problem with LT1935 which isn't in our country.

    I want to try another option in the figure below, and listen to your opinions.

    SG3525 circuit.JPG
    F= 47.3KHz .
    Feedback ratio : 1:12


    If it's a good circuit, I continue with it , and if it's not , I will switch to the first design.

    thank you
     
Loading...