[{"data":1,"prerenderedAt":354},["ShallowReactive",2],{"project-21266940":3},{"id":4,"name":5,"line":5,"line_source":6,"title":7,"url":8,"domain":9,"maker":10,"posted_at":11,"year":12,"points":13,"comments":14,"rank_in_year":15,"shown_in_year":16,"top":17,"tier":18,"category":19,"subcategory":20,"format":19,"keywords":21,"reception":26,"sentiment":27,"stance_mix":28,"scored_comments":31,"aspects":32,"strip":40,"post_text":42,"what":43,"said":77,"maker_in_thread":166,"shape":179,"grid":184,"attempts":318,"same_week":319,"maker_shows":41,"maker_hidden":347,"reader_version":348,"card":349},"21266940","USB PD Stand-Alone Sink Controller","title","Show HN: USB PD Stand-Alone Sink Controller","https:\u002F\u002Fblog.oxplot.com\u002Fusb-pd-standalone-sink-controller\u002F","blog.oxplot.com","oxplot",1571198456,2019,124,58,369,2195,17,"notable","hardware","usb power delivery board",[22,23,24,25],"usb power delivery","usb-c","sink controller","stusb4500","curious",0,{"positive":29,"neutral":30,"mixed":27,"critical":29},4,11,19,{"design":33,"idea":36,"performance":37,"docs":38},{"positive":34,"critical":35},2,1,{"positive":34,"critical":27},{"positive":27,"critical":27},{"positive":27,"critical":39},3,[41,27,27,27,27,27,27,27,27,27,27,39,27,41,27,39,35,27,27,27,27,27,27,27,41,35,39,39,27,27,27,39,27,39,39,39,27,27,35,39],5,null,{"problem":44,"audience":42,"pricing":42,"motivation":60,"time_to_build":42,"stack":64,"openness":76,"stage":76,"team_size":76},{"value":45,"source":46,"evidence":47},"Powering non-USB-C devices such as laptops with a DC barrel jack from a USB-C PD charger","commenter",[48,52,56],{"id":49,"by":50,"text":51},"21268466","dijit","This is incredible, something like this becoming mass market would remove the issues we have of older laptops not having easily replaceable power bricks.",{"id":53,"by":54,"text":55},"21269555","roland35","No this is a device that is powered by a USB-C charger and outputs whatever voltage\u002Fcurrent you want (if it is possible). So in this case he made an adaptor that lets him charge…",{"id":57,"by":58,"text":59},"21269621","MisterTea","In electronics terms, sink means a device which consumes current. The opposite is aptly named source. So a source supplies a sink. The 100W 20V USB-C power standard requires a…",{"value":61,"source":46,"evidence":62},"Use a USB-C charger to power a Lenovo ThinkPad with a slim-tip plug",[63],{"id":53,"by":54,"text":55},[65],{"value":66,"source":46,"evidence":67},"STUSB4500 USB-PD sink controller chip",[68,72],{"id":69,"by":70,"text":71},"21272255","AceJohnny2","> So... https:\u002F\u002Fwww.tindie.com\u002Fproducts\u002Fclarahobbs\u002Fpd-buddy-sink\u002F like this, right? Note all the extra electronics on the PD-Buddy-Sink, which OP specifically calls out: \"Chips…",{"id":73,"by":74,"text":75},"21269250","sorenjan","The STUSB4500 supports output voltages of 5V to 20V in 50mV increments and is programmed over I2C, so it should be pretty easy to add a small micro controller and some input…","unknown",{"praise":78,"objections":91,"requests":114,"questions":127,"alternatives":146},[79,87],{"value":80,"source":46,"evidence":81},"Useful way to reuse USB-C chargers for other devices",[82,83],{"id":49,"by":50,"text":51},{"id":84,"by":85,"text":86},"21268261","ermir","This is quite cool! Any PCB designer that needs a lot of power should just use this design and hopefully the world will eventually settle on using micro USB for low power and USB…",{"value":88,"source":46,"evidence":89},"Cleaner integrated design than the PD-Buddy Sink",[90],{"id":69,"by":70,"text":71},[92,107],{"value":93,"source":46,"evidence":94},"Blog post does not clearly explain what the project is",[95,99,103],{"id":96,"by":97,"text":98},"21270101","ebg13","Thought this would be about roboticizing my kitchen faucet. Had to dig to find: > What is it? Ever thought of (re-)using your USB-C charger (like Macbook's) to power other…",{"id":100,"by":101,"text":102},"21269515","ones_and_zeros","I read the blog post but it's still not clear what this is or its for? Is it a usb c port for laptops without them?",{"id":104,"by":105,"text":106},"21273222","cgranier","I was extremely confused as well... That he also doesn't really explain what he was doing didn't help. ¯\\_(ツ)_\u002F¯",{"value":108,"source":46,"evidence":109},"Fixed output voltage range is limited for laptops",[110],{"id":111,"by":112,"text":113},"21268692","mschuster91","This design does lack a configurable dc\u002Fdc voltage regulator, I've seen laptops with anything between 12-24V... any idea for a circuit?",[115,120],{"value":116,"source":46,"evidence":117},"Configurable output voltage",[118,119],{"id":111,"by":112,"text":113},{"id":73,"by":74,"text":75},{"value":121,"source":46,"evidence":122},"Power source design to act as a power bank",[123],{"id":124,"by":125,"text":126},"21276717","solarkraft","What is required for this to act as a power supply? I'm thinking about building a power bank.",[128,139],{"value":129,"source":46,"evidence":130},"Can the setting be reprogrammed and persist between power cycles",[131,135],{"id":132,"by":133,"text":134},"21271448","botto","So you say you set the voltage and current requirements once in the software, but looking at the data sheet it can be reprogrammed? Do you mean you set it and it works between…",{"id":136,"by":137,"text":138},"21271553","tastroder","> Do you mean you set it and it works between power cycles? Yes, the article stresses that explicitly. That's in section 5.1 of the datasheet I believe.",{"value":140,"source":46,"evidence":141},"Does this work as a power supply",[142,143],{"id":124,"by":125,"text":126},{"id":144,"by":10,"text":145},"21276872","This board can only consume power. ST sells chips which act as USB PD supply but they're only interface chips. You'll need a DC-DC converter and charger circuit as well which is…",[147,155,159],{"value":148,"source":46,"evidence":149},"PD-Buddy Sink",[150,154],{"id":151,"by":152,"text":153},"21269137","chx","So... https:\u002F\u002Fwww.tindie.com\u002Fproducts\u002Fclarahobbs\u002Fpd-buddy-sink\u002F like this, right? Now, I saw a ThinkPad plug in the blog post. Lenovo sells this ready made.…",{"id":69,"by":70,"text":71},{"value":156,"source":46,"evidence":157},"Lenovo slim-tip USB-C cable adapter",[158],{"id":151,"by":152,"text":153},{"value":160,"source":46,"evidence":161},"WEB PDC001 programmable USB-C cable",[162],{"id":163,"by":164,"text":165},"21268594","SyncOnGreen","Neat project - I was looking for something similar for powering various bits of electronics and stumbled upon WEB PDC001 (can be found on Aliexpress) cable which is basically…",{"comments":167,"answered":168,"key":169},9,8,[170,173,176],{"id":171,"text":172},"21270043","Yes! Exactly what happened with my Pixel phone. The cable would fall out after a minute. Took a toothpick and a few minutes to get the dirt out and now it's as good as new.",{"id":174,"text":175},"21367464","I have two devices at home with the positive contact on the outer ring!!!",{"id":177,"text":178},"21269922","I knew about the cables on eBay but wow, didn't know about Lenovo's official one. Thanks!! Also the other project is pretty cool as well. Will check out the components there too.",{"commenters":180,"max_depth":181,"maker_replies":167,"first_comment_mins":182,"lifespan_hours":183},36,6,272,262,[185,187,191,194,197,201,204,205,208,211,214,215,217,219,221,224,226,230,234,236,239,241,242,244,245,246,249,251,254,257,259,262,264,267,269,272,273,275,278,279,282,286,288,290,292,294,297,299,301,302,304,306,307,309,311,314,316,317],[84,27,41,186,85,27],"project\u002Fpositive\u002Fdesign",[188,27,27,189,190,27],"21268452","other\u002Fneutral\u002Fnone","btgeekboy",[192,27,27,189,193,27],"21268485","OJFord",[195,27,27,189,196,27],"21269084","wongarsu",[198,27,27,199,200,27],"21269398","other\u002Fneutral\u002Fdesign","benburleson",[202,27,27,189,203,27],"21269959","maxerickson",[171,27,27,189,10,35],[206,27,27,189,207,27],"21271208","artiscode",[209,27,27,199,210,27],"21271694","jorvi",[212,27,27,199,213,27],"21278039","colejohnson66",[174,27,27,189,10,35],[216,27,27,199,74,27],"21269187",[218,27,27,189,125,27],"21276665",[220,27,27,189,74,27],"21290808",[222,27,27,199,223,27],"21274206","jack12",[151,35,39,225,152,27],"project\u002Fneutral\u002Fidea",[227,35,39,228,229,27],"21269530","project\u002Fneutral\u002Fperformance","wlesieutre",[231,35,27,232,233,27],"21272316","other\u002Fneutral\u002Fperformance","cptskippy",[235,35,27,232,152,27],"21280065",[237,35,41,238,54,27],"21269571","project\u002Fpositive\u002Fidea",[177,35,27,240,10,35],"commenter\u002Fneutral\u002Fnone",[69,35,41,186,70,27],[96,34,35,243,97,27],"project\u002Fcritical\u002Fdocs",[104,34,35,243,105,27],[163,39,27,189,164,27],[247,39,27,248,152,27],"21269107","other\u002Fneutral\u002Fdocs",[250,39,27,248,164,27],"21269437",[252,29,27,189,253,27],"21269777","splitbrain",[255,29,27,189,256,27],"21270196","notpeter",[258,29,27,189,253,27],"21270305",[260,29,27,189,261,27],"21270474","GoMonad",[263,29,27,189,261,27],"21270702",[265,29,27,189,266,27],"21271144","anbotero",[268,29,27,240,10,35],"21271847",[270,29,27,189,271,27],"21277786","dwaite",[49,41,41,238,50,27],[111,41,35,274,112,27],"project\u002Fcritical\u002Fdesign",[276,41,39,277,133,27],"21268962","project\u002Fneutral\u002Fdesign",[73,41,39,277,74,27],[280,41,39,228,281,27],"21269431","userbinator",[283,41,27,284,285,27],"21269526","commenter\u002Fneutral\u002Fperformance","sokoloff",[287,41,27,284,281,27],"21269606",[289,41,27,240,285,27],"21275884",[291,41,27,277,10,35],"21276420",[293,41,27,189,152,27],"21269151",[295,181,39,228,296,27],"21271397","sp332",[298,181,27,228,10,35],"21271545",[124,300,39,225,125,27],7,[144,300,27,225,10,35],[132,168,39,303,133,27],"project\u002Fneutral\u002Fdocs",[305,168,27,303,10,35],"21271505",[136,168,39,303,137,27],[308,167,27,189,112,27],"21268567",[310,167,27,189,10,35],"21269888",[312,167,27,189,313,27],"21271675","penagwin",[100,315,35,243,101,27],10,[53,315,39,303,54,27],[57,315,39,303,58,27],[],[320,325,330,334,338,342],{"id":321,"name":322,"points":323,"category":324},"21231208","Bel",1288,"languages",{"id":326,"name":327,"points":328,"category":329},"21215484","Spider Pro",391,"dev_tools",{"id":331,"name":332,"points":333,"category":329},"21270424","Pipedream",245,{"id":335,"name":336,"points":337,"category":324},"21234891","dial",190,{"id":339,"name":340,"points":341,"category":329},"21268324","reloading",187,{"id":343,"name":344,"points":345,"category":346},"21253850","Alt-tab-macos",156,"productivity",false,"v2",{"id":350,"name":5,"line":5,"ai":347,"cat":19,"year":12,"points":13,"comments":14,"rec":26,"s":27,"top":17,"kw":351,"maker":10,"domain":9,"tier":18,"attempts":27,"strip":352,"url":8,"mix":353,"praise":80,"objection":93,"sub":20},21266940,[22,23,24,25],"5000000000030503100000005133000303330013",[29,30,27,29],1794036582008]