USB PD Stand-Alone Sink Controller
Hardware
usb power delivery board
SHOW HN2019
How HN took it
4 positive, 11 neutral or asking, 0 mixed, 4 critical, out of 19 comments about the project. Thread score 0.00.
Design: 2 for, 1 againstDocs: 0 for, 3 againstIdea: 2 for, 0 against
The thread, comment by comment
Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.
positive neutral or mixed critical about another commenter or something else the maker
What HN said
What people liked
Useful way to reuse USB-C chargers for other devices
From 2 comments
This is incredible, something like this becoming mass market would remove the issues we have of older laptops not having easily replaceable power bricks.
dijit on HNThis 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…
ermir on HN
Cleaner integrated design than the PD-Buddy Sink
From 1 comment
> So... https://www.tindie.com/products/clarahobbs/pd-buddy-sink/ like this, right? Note all the extra electronics on the PD-Buddy-Sink, which OP specifically calls out: "Chips…
AceJohnny2 on HN
Objections
Blog post does not clearly explain what the project is
From 3 comments
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…
ebg13 on HNI 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?
ones_and_zeros on HNI was extremely confused as well... That he also doesn't really explain what he was doing didn't help. ¯\_(ツ)_/¯
cgranier on HN
Fixed output voltage range is limited for laptops
From 1 comment
This design does lack a configurable dc/dc voltage regulator, I've seen laptops with anything between 12-24V... any idea for a circuit?
mschuster91 on HN
Requests
Configurable output voltage
From 2 comments
This design does lack a configurable dc/dc voltage regulator, I've seen laptops with anything between 12-24V... any idea for a circuit?
mschuster91 on HNThe 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…
sorenjan on HN
Power source design to act as a power bank
From 1 comment
What is required for this to act as a power supply? I'm thinking about building a power bank.
solarkraft on HN
Questions
Can the setting be reprogrammed and persist between power cycles
From 2 comments
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…
botto on HN> 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.
tastroder on HN
Does this work as a power supply
From 2 comments
What is required for this to act as a power supply? I'm thinking about building a power bank.
solarkraft on HNThis 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…
oxplot on HN
Alternatives named
PD-Buddy Sink
From 2 comments
So... https://www.tindie.com/products/clarahobbs/pd-buddy-sink/ like this, right? Now, I saw a ThinkPad plug in the blog post. Lenovo sells this ready made.…
chx on HN> So... https://www.tindie.com/products/clarahobbs/pd-buddy-sink/ like this, right? Note all the extra electronics on the PD-Buddy-Sink, which OP specifically calls out: "Chips…
AceJohnny2 on HN
Lenovo slim-tip USB-C cable adapter
From 1 comment
So... https://www.tindie.com/products/clarahobbs/pd-buddy-sink/ like this, right? Now, I saw a ThinkPad plug in the blog post. Lenovo sells this ready made.…
chx on HN
WEB PDC001 programmable USB-C cable
From 1 comment
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…
SyncOnGreen on HN