I have maintain constant current @ the different load in boost converter

Discussion in 'The Projects Forum' started by illayaraja, Oct 28, 2015.

  1. illayaraja

    Thread Starter New Member

    Oct 6, 2015
    12
    0
    Hi fnds...
    I have maintain constant current @ the different load in boost converter ..... i want to maintain 40mA ..? kindly tell me any ideas...




    Mod Edit :
    Please don't hijack other member's post, now you have your own.
    This thread was split from : DC to DC Boost Converter - 12V to 96V at >9 amps
     
  2. Brownout

    Well-Known Member

    Jan 10, 2012
    2,375
    998
    You'll get a much better response if you start your own thread and ask a detailed question. Details should include limits in the load difference, voltages, currents (not just difference in currents) any relevant drawings, schematics and any work you've done so far. Plus some things I'm probably forgetting.
     
  3. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
    4,770
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    Pick/build one with an appropriate feedback loop.
     
  4. dl324

    Distinguished Member

    Mar 30, 2015
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    For starters, post the schematic for your regulator.
     
  5. AnalogKid

    Distinguished Member

    Aug 1, 2013
    4,542
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    Input voltage range?
    Output voltage range?
    Isolated / non-isolated?
    Load?
    Transient response?
    Constant-current regulator, or a constant-current add-on to a standard voltage regulator?
    SCHEMATIC?
    ak
     
  6. illayaraja

    Thread Starter New Member

    Oct 6, 2015
    12
    0
    boost converter1.jpg
    i need out put 80v @50mA it's possible,.....with different load ....
     
  7. dl324

    Distinguished Member

    Mar 30, 2015
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    The first thing you need to do is get it straight in your mind what you want. Do you want constant current? Or do you want current limited to a maximum?
     
    Alec_t likes this.
  8. dl324

    Distinguished Member

    Mar 30, 2015
    3,244
    622
    The step up regulator wiring is odd. Did you read the datasheet/appnote? It's more typical to put the current limiting resistor between pins 6 and 7 on the regulator. Your circuit has those two pins shorted and has 0.22ohm resistors scattered about willy nilly.
     
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