Handy USB C power supply mini

Story

We have developed PPSTrigger awhile back as a way to request Programable Power Supply (PPS) mode from modern USB-C charger. This mode allow you to request fine voltage directly from the charger the usual range 3.3V to 20V. All you need to do is to turn the trim pot in the PCB to get your desire voltage.

Build Steps

Step 1: Solder the RED to + and BLACK to -, Like so:

Step 2: Add your M2.5 heat insert. For PLA, you can use solder iron set at 200C

Step 3: Screw in your PPSTrigger board with M2 screw (6mm)

Step 4: Screw in your voltmeter

Charger selection

We have a list of tested charger but there are just many many charger out there can can do the same thing. You just need to watch out for the term "PPS" mention in the capability.

• UGREEN 100W - PPS 3.3 - 21.0 @ 3A
• UGREEN 140W - PPS 3.3 - 21.0 @ 5A
• AOHI Magcube 140W - PPS 3.3 - 21.0 @ 5A
• GKUTW HX65P3 65W - PPS 3.3 - 21 @ 3A
• Anker 737 (GaN Prime 120W) - PPS 3.3 - 11.0 @ 3A
• Anker 737 Power Bank - PPS 3.3 - 21.0 @ 5A
• Anker PowerHouse 521 - PPS 3.3 - 11.0 @ 3A

Result

Connect anything to your screw terminals and enjoy high amperage supply! Depend on charger and cable, you can get up to 5A at any voltage. Example is the UGREEN 140W pair with a 100W cable.

Note

The trim pot does not have an infinite life time so limit the amount of time you adjust it. If you want to make it more robust, we suggest you remove the trimpot and replace with a 10K potentiometer.