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Discussion in 'Power Electronics' started by vijethaj, Jan 19, 2020.

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  1. vijethaj


    Jan 19, 2020
    Hi, I wanted to know if we can use a transistor/op-amp based current source circuit that could source out constant current of about 300mA?
    Or are these circuits limited to source few tens of mA current??

    Thanks in advance
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    Nov 17, 2011
    No, the circuits per se are not limited. You need to select the right power transistor and sense resistor.
    Here's an example of a 500 mA current source.
    vijethaj likes this.
  3. Bluejets


    Oct 5, 2014
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