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#boostconverter — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #boostconverter, aggregated by home.social.

  1. Well, this is annoying.

    I have some little power #modules (bought on #AliExpress, natch) that were advertised as automatic boost/buck converters. Input from <4V to >30V, output from 1.25V to 35V.

    They're based on the XL6009 switching converter, which supports auto-buck-boost as one mode.

    But they appear to use it in boost-only mode. The output voltage can not go below the input as far as I can tell. From the datasheet, it looks like that's because the auto-buck-boost config requires a few more components, plus a transformer instead of a simple inductor, which is probably the main reason (BOM).

    The listing just seems to be ... wrong.

    Annoying.

    #seller #SellerDescription #YumCha #Chinesium #BuckConverter #BoostConverter #AutoBuckBoost #BuckBoost #electronics #hobby

  2. Well, this is annoying.

    I have some little power #modules (bought on #AliExpress, natch) that were advertised as automatic boost/buck converters. Input from <4V to >30V, output from 1.25V to 35V.

    They're based on the XL6009 switching converter, which supports auto-buck-boost as one mode.

    But they appear to use it in boost-only mode. The output voltage can not go below the input as far as I can tell. From the datasheet, it looks like that's because the auto-buck-boost config requires a few more components, plus a transformer instead of a simple inductor, which is probably the main reason (BOM).

    The listing just seems to be ... wrong.

    Annoying.

    #seller #SellerDescription #YumCha #Chinesium #BuckConverter #BoostConverter #AutoBuckBoost #BuckBoost #electronics #hobby

  3. Well, this is annoying.

    I have some little power #modules (bought on #AliExpress, natch) that were advertised as automatic boost/buck converters. Input from <4V to >30V, output from 1.25V to 35V.

    They're based on the XL6009 switching converter, which supports auto-buck-boost as one mode.

    But they appear to use it in boost-only mode. The output voltage can not go below the input as far as I can tell. From the datasheet, it looks like that's because the auto-buck-boost config requires a few more components, plus a transformer instead of a simple inductor, which is probably the main reason (BOM).

    The listing just seems to be ... wrong.

    Annoying.

    #seller #SellerDescription #YumCha #Chinesium #BuckConverter #BoostConverter #AutoBuckBoost #BuckBoost #electronics #hobby

  4. Well, this is annoying.

    I have some little power #modules (bought on #AliExpress, natch) that were advertised as automatic boost/buck converters. Input from <4V to >30V, output from 1.25V to 35V.

    They're based on the XL6009 switching converter, which supports auto-buck-boost as one mode.

    But they appear to use it in boost-only mode. The output voltage can not go below the input as far as I can tell. From the datasheet, it looks like that's because the auto-buck-boost config requires a few more components, plus a transformer instead of a simple inductor, which is probably the main reason (BOM).

    The listing just seems to be ... wrong.

    Annoying.

    #seller #SellerDescription #YumCha #Chinesium #BuckConverter #BoostConverter #AutoBuckBoost #BuckBoost #electronics #hobby

  5. Well, this is annoying.

    I have some little power #modules (bought on #AliExpress, natch) that were advertised as automatic boost/buck converters. Input from <4V to >30V, output from 1.25V to 35V.

    They're based on the XL6009 switching converter, which supports auto-buck-boost as one mode.

    But they appear to use it in boost-only mode. The output voltage can not go below the input as far as I can tell. From the datasheet, it looks like that's because the auto-buck-boost config requires a few more components, plus a transformer instead of a simple inductor, which is probably the main reason (BOM).

    The listing just seems to be ... wrong.

    Annoying.

    #seller #SellerDescription #YumCha #Chinesium #BuckConverter #BoostConverter #AutoBuckBoost #BuckBoost #electronics #hobby

  6. After failing to create a #symmetric #powersupply using an OpAmp and BJTs to split 24V by forming a virtual ground, I went the easy route. Two #BoostConverter set to 12V each are connected in series with the center being ground. This way I get symmetric +/-12V. Of course I don't rely on the #battery protection, but rather use a 900mA #PPTC #fuse per rail. Also a switch and some LEDs as indicator. Enough #JST sockets for my upcoming #synth projects.
    #perfboard #diy #perfboard #KiCad

  7. Doing a quick test of a boost converter circuit I got on Amazon. I don't think anything will go wrong, but just in case I have the shield.

    This is just something quick. I wanted to grab to be able to run a thin client, which needs about 19 volts, from a 12 volt battery. It looks like it should only need a few watts, 10 watts tops from when I was measuring it under load. This is without running a desktop or anything.

    #PowerElectroncis #BoostConverter

  8. The Bright Side of the Moon Lamp: It’s Any Colour You Like - One of the easiest ways to get into hardware hacking is by piecing together a few modules and shoeho... - hackaday.com/2021/02/08/the-br #boostconverter #3dprintedlamp #blinkenlights #rgbledstrip #mischacks #lamp #moon

  9. DIY Magsafe Charger Feeds Off 12 V Solar Battery - [Steve Chamberlin] has a spiffy solar-charged 12 V battery that he was eager to use to power his lap... more: hackaday.com/2020/04/19/diy-ma #boostconverter #laptopshacks #adapter #macbook #magsafe #how-to #12volt #apple #dc-dc #diy

  10. Tiny Cube Hosts a Hearty Tube - Tiny PCBAs and glowy VFD tubes are like catnip to a Hackaday writer, so when we saw [hamster]’s Tube... more: hackaday.com/2019/10/25/tiny-c #switchingpowersupply #boostconverter #highvoltage #minibadge #nixietube #hardware #add-on #badge #nixie #cons