How to attach a type C cable to a DC power supply

[vladimir1909]

Hi
Maybe somebody knows how could I attach a type C cable to a DC power supply for troubleshooting a macbook.
I have peeled the cable and and hooked the ground to ground and V+ to V+, but when I trie to charge a macbook it doesnt work.
I have seen an adapter, but first i would like to try and build my adapter by myself
Sorry for my english
PD: I have attached pictures of the adapter and the power supply Im using

[eccerr0r]

Needs an IC to negotiate power so likely you'll need to get the adapter else you'll have to emulate the IC.

[piernov]

You don't. Voltage is negotiated dynamically between the device and the power supply to provide 5V/9V/12V/15V/20V/28V. Failure to follow proper voltage negotiation is highly likely to damage the device. Also USB-C devices are very sensitive and the bad regulation (overshoot/ripple) provided by cheap adjustable supplies can also cause damage.
You use the original power brick from the manufacturer and you put a USB-C meter inline if you need to see current/voltage.

[CapLeaker]

There are also usb c connectors just for power. No data.

[sam_sam_sam]

Hi
Maybe somebody knows how could I attach a type C cable to a DC power supply for troubleshooting a macbook.
I have peeled the cable and and hooked the ground to ground and V+ to V+, but when I trie to charge a macbook it doesnt work.
I have seen an adapter, but first i would like to try and build my adapter by myself
Sorry for my english
PD: I have attached pictures of the adapter and the power supply Im using

I tried something similar a few years ago and I was not successful doing it because of the way the protocol is set up I tried to figure out how to hook it up to the secondary side of the switching power supply and this is not easily done because it not just two wires from the switching power supply like how it is setup in most devices if I remember correctly there was either three or four wire and I did not figure out how it worked so I could not get it to work correctly

What I can tell that will work is a USB type C battery bank but you have keep the voltage at 4.20 volts just like the battery pack

Now you could use something like this

USB-C QC PD3.0 Trigger Module Type-C Female Interface 5V 9V 12V 15V 20V 5A

https://www.ebay.com/itm/28608894074...Bk9SR_jIganvZA