the ZYPDS is just $2.50. I just ordered two. I plan to make an external 100W USB-C boost to 42V/50V 5.5x2.5 adapter to save space in the enclosure.
2 Likes
ordered some myself, for ts100 
2 Likes
any updates for this project?
I was thinking about getting this, attaching it to the charging terminals and then hooking it up to something like this: https://www.amazon.com/s?k=flush+mount+usb-c&i=electronics&ref=nb_sb_noss_1
I recommend the external method as I am displaying here. 
I can make you one if you like.
I’ve been installing usbc in most of my boards for a year
I’m slowing down and concentrate on a small black box I can carry in my pocket
13 Likes
I guess the verdict is dongle life is the way to go 
3 Likes
Hey can I ask what model boost converter you’re using? The closest thing I can find is the DFRobot DFR0123, but it operates at a little lower voltage than yours does…
Would love to track the one you’re using down.
Cheers
Found it!
Thanks
Search amazon for B07Z5M89N1
2 Likes
Yeah, that looks like the same one.
I have found two to work and survive some harsh testing: the small one that you found on Amazon - it’s super tiny, but only goes to 40.5v, but it can take in as low as 5V!
And then a bigger one that needs 10V, but goes up to 60V. https://www.ebay.com/itm/264681962677
Both get hot, but though I really pushed them beyond how they’d be used, none failed.
7 Likes
Yeah. The 2 cap and 3 cap work. I get them from China for 6 bucks
I’m curious, what cells are used in it?
1 Like
jeff did a bad
5 Likes
…but still curious
1 Like
He’s not a member any more. That’s a fake account and it’s dead.
2 Likes
Airline friendly 12s4p p42a
same discussion of 99wh and under packs here
Flying with battery
2 Likes
Can I ask you the inside of you wonderful little box ?
I you have schematic and picture I would love to see them all !
1 Like
I can only guess, but I would assume there’s a USB PD consumer negotiator IC (for example STUSB4500) on the USB-C side, which is then fed to a boost converter. Then for current and voltage control he either has a MCU inside that reads the trimmer positions for the set voltage and current and then controls/biases the boost IC via the MCU to get set those values for it. The MCU could also be used to read the output voltage and current and display them on the 7-segment display.
Alternatively there could be just chinese modules inside that are doing those functions independently. The metal enclosure gives a good heatsink for cooling.
My 2 cents.
3 Likes
2 Likes
As I understand it…while Power Duo mode can handle up to 10A it is only via a single port. I don’t think you can parallel USB ports for this. That is essentially short-circuiting two ports together.
The mentioned two power paths are inside the controller, two sets of FETs that can be both turned on at the same time to reduce the resistance and allow more current to flow for the same amount of heat.
I love the idea but unfortunately Power Duo mode also requires compatible USB PD controllers (e.g., TI’s TPS65987D) on both ends of the cable that are configured for that mode. It also requires a very good 5A-rated USB-C cable and connectors in order to handle the 10A of current.
But using 5A rated USB cable and connectors, even if meeting the 2x overcurrent capability required for getting certification, is not a great idea IMO. I would recommend using custom cables and connectors.
2 Likes