This is called a PD Trigger or a PD Emulator. They come in adapters too with a female USB C port and are only a few inches long.
Like this:
I’ve used several of them before. They’re super useful.
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This is called a PD Trigger or a PD Emulator. They come in adapters too with a female USB C port and are only a few inches long.
Like this:
I’ve used several of them before. They’re super useful.
It would be much more useful with USB PPS support for adjustable voltage and barrel plugs that can be swapped.
My dad has had a wall wart that does this since the 80s. Goes from 1.5 to 9 volts and even lets you adjust barrel polarity.
I broke so many electronics with that thing…
Yes, you definitely have to be careful with them. They do come in handy when I can't find the correct power supply or even one that will work despite having a 50 pound bin full of them.
Yea, I do have a box of wall warts of different voltages, max current, and a box of coax adapters. Not hard for me to grab what I need and modify as required.
I also have a box of USB C chargers, many of them PD. This cable is a neat concept, but like you said it needs coax adapters, and adjustability on the cable for voltage.
FYI they sell one that can be reprogrammed. It's still USB PD, but that covers most use cases.
They also sell a kit of compatable barrel jack plug adapters of many shapes and sizes.
I basically just use USB-C trigger boards for my projects these days. Super convenient.
I think that is basically what this is. I was actually looking for a replacement power supply for a cat feeder when I found this. Considered it for a minute then discarded the idea as cool, but overly expensive in my case. If I had had a spare 30w USB-C power supply, might have gone another way, but the older wall wart style power supply only cost me $15.
These cables are indeed basically just that. They're a good solution for reducing wall warts when powering older projects that use barrel jacks or don't have room for a trigger board.