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LM338 CC/CV

Discussion in 'General Electronics Discussion' started by JutMe234, May 11, 2017.

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  1. JutMe234

    JutMe234

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    0
    May 11, 2017
    How to adjust voltage and current with a LM338K.
    It will run at 0-30V and 5-8A.
     
  2. Audioguru

    Audioguru

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    Sep 24, 2016
    You talk like you have never seen the datasheet of the LM338. Datasheets have all the spec's and most application circuits.

    The LM338 minimum output voltage is about 1.2V but of you add a -1.2V supply it will go down to about 0V.
    Its output is guaranteed to go as high as 5A but two in parallel with an opamp as shown in the datasheet can provide more current.
     

    Attached Files:

    Harald Kapp and davenn like this.
  3. Harald Kapp

    Harald Kapp Moderator Moderator

    11,813
    2,752
    Nov 17, 2011
    ... and don't forget the heatsink!
     
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