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Driving 100 Watt Led With 150 Dc Dc Boost. Not Getting The Desired Current

Discussion in 'Troubleshooting and Repair' started by mindmywork, Mar 3, 2017.

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  1. mindmywork

    mindmywork

    1
    0
    Mar 3, 2017
    i have a pc smps. i input the 12v rail to 150 dc dc boost converter and attached the output to 100 watt led

    im getting the 33 v. but not getting the ampearage. just .77 ampears when measured.

    i have added a lm338 circuit to the output of 150 dc dc boost to constant the current.


    my question is what to do in order to increase the ampears.

    pics of dc dc boost and reading. IMG_20170302_194849.jpg IMG_20170302_194849.jpg IMG_20170302_195300.jpg IMG_20170302_194849.jpg IMG_20170302_195300.jpg IMG_20170302_194849.jpg IMG_20170302_195300.jpg
     
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