Current Limiting Circuit

Discussion in 'General Electronics Chat' started by priya onkar, Aug 12, 2014.

  1. priya onkar

    Thread Starter New Member

    Aug 11, 2014
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    I designed Step up boost converter using 555 pwm ic for variable DC voltage, output voltage varies from 0-300 Volt.I have to design constant current limiting circuit at the output of boost converter which limits the current to 1 micro ampere.The purpose of this current limiting circuit is if short happens at load side then boost converter will not send current greater than 1 micro ampere.Please help me on current limiting part.
     
  2. MrChips

    Moderator

    Oct 2, 2009
    12,421
    3,355
    Put a large value resistor in series?
     
  3. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,386
    1,605
    No options are possible without a schematic.
     
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